ear canal

Summary

Top Publications

  1. ncbi Osteoma of the external ear canal
    Shih Hsuan Hsiao
    Department of Otolaryngology, National Taiwan University Hospital, Taipei
    Otol Neurotol 24:960. 2003
  2. ncbi Tubular apocrine adenoma with syringocystadenoma papilliferum arising from the external auditory canal
    Chi Kyou Lee
    Department of Otorhinolaryngology Head and Neck Surgery, Cheonan Hospital, Soonchunhyang University School of Medicine, Cheonan, Korea
    J Laryngol Otol 119:1004-6. 2005
  3. ncbi Three-dimensional evaluation of craniofacial asymmetry: an analysis using computed tomography
    Rosa María Yañez-Vico
    School of Dentistry, University of Seville, Seville, Spain
    Clin Oral Investig 15:729-36. 2011
  4. ncbi A histological examination in the cases of initial diagnosis as chronic otitis media with a polypoid mass in the external ear canal
    John Xenellis
    1st and 2nd Department of Otorhinolaryngology, Athens University, Athens, Greece
    Auris Nasus Larynx 38:325-8. 2011
  5. ncbi The prevalence of middle ear pathogens in the outer ear canal and the nasopharyngeal cavity of healthy young adults
    T de Baere
    Laboratory Bacteriology Research, University Hospital Ghent, Gent, Belgium
    Clin Microbiol Infect 16:1031-5. 2010
  6. ncbi Cavernous hemangioma of the external ear canal
    Jay B Reeck
    Division of Otology, Neurotology and Skull Base Surgery, Department of Otolaryngology Head and Neck Surgery, Veterans Administration Medical Center, San Francisco, California, USA
    Laryngoscope 112:1750-2. 2002
  7. pmc Specification of absorbed-sound power in the ear canal: application to suppression of stimulus frequency otoacoustic emissions
    Douglas H Keefe
    Boys Town National Research Hospital, 555 North 30th Street, Omaha, Nebraska 68131, USA
    J Acoust Soc Am 129:779-91. 2011
  8. pmc Ear-canal reflectance, umbo velocity, and tympanometry in normal-hearing adults
    John J Rosowski
    Eaton Peabody Laboratory, Massachusetts Eye and Ear Infirmary, Boston, Massachusetts 02114, USA
    Ear Hear 33:19-34. 2012
  9. ncbi Comparison between intensity and pressure as measures of sound level in the ear canal
    S T Neely
    Boys Town National Research Hospital, Omaha, Nebraska 68131, USA
    J Acoust Soc Am 104:2925-34. 1998
  10. ncbi Stimulus-frequency-emission group delay: a test of coherent reflection filtering and a window on cochlear tuning
    Christopher A Shera
    Eaton Peabody Laboratory of Auditory Physiology, Massachusetts Eye and Ear Infirmary 243 Charles Street, Boston, Massachusetts 02114, USA
    J Acoust Soc Am 113:2762-72. 2003

Detail Information

Publications238 found, 100 shown here

  1. ncbi Osteoma of the external ear canal
    Shih Hsuan Hsiao
    Department of Otolaryngology, National Taiwan University Hospital, Taipei
    Otol Neurotol 24:960. 2003
  2. ncbi Tubular apocrine adenoma with syringocystadenoma papilliferum arising from the external auditory canal
    Chi Kyou Lee
    Department of Otorhinolaryngology Head and Neck Surgery, Cheonan Hospital, Soonchunhyang University School of Medicine, Cheonan, Korea
    J Laryngol Otol 119:1004-6. 2005
    ..Comprehensive review of the literature reveals that TAA in the external auditory canal (EAC) has not yet been reported. We report a case of TAA in the EAC, together with characteristic histopathological findings...
  3. ncbi Three-dimensional evaluation of craniofacial asymmetry: an analysis using computed tomography
    Rosa María Yañez-Vico
    School of Dentistry, University of Seville, Seville, Spain
    Clin Oral Investig 15:729-36. 2011
    ..The angulation of the mandibular ramus, on both frontal and lateral planes, determines apparent facial asymmetry, as well as conditioning the surgical treatment plan for patients with craniofacial asymmetry...
  4. ncbi A histological examination in the cases of initial diagnosis as chronic otitis media with a polypoid mass in the external ear canal
    John Xenellis
    1st and 2nd Department of Otorhinolaryngology, Athens University, Athens, Greece
    Auris Nasus Larynx 38:325-8. 2011
    to analyse a large series of patients with initial diagnosis of chronic otitis media (COM) with a polypoid mass in the external ear canal (EAC).
  5. ncbi The prevalence of middle ear pathogens in the outer ear canal and the nasopharyngeal cavity of healthy young adults
    T de Baere
    Laboratory Bacteriology Research, University Hospital Ghent, Gent, Belgium
    Clin Microbiol Infect 16:1031-5. 2010
    ..otitidis from the nasopharynx, its role in the aetiology of OME remains ambiguous because middle ear infecting organisms are considered to invade the middle ear from the nasopharynx through the Eustachian tube...
  6. ncbi Cavernous hemangioma of the external ear canal
    Jay B Reeck
    Division of Otology, Neurotology and Skull Base Surgery, Department of Otolaryngology Head and Neck Surgery, Veterans Administration Medical Center, San Francisco, California, USA
    Laryngoscope 112:1750-2. 2002
    To document the occurrence of a cavernous hemangioma of the external ear canal and to review the relevant literature. STUDY DESIGN Case report and literature review.
  7. pmc Specification of absorbed-sound power in the ear canal: application to suppression of stimulus frequency otoacoustic emissions
    Douglas H Keefe
    Boys Town National Research Hospital, 555 North 30th Street, Omaha, Nebraska 68131, USA
    J Acoust Soc Am 129:779-91. 2011
    ....
  8. pmc Ear-canal reflectance, umbo velocity, and tympanometry in normal-hearing adults
    John J Rosowski
    Eaton Peabody Laboratory, Massachusetts Eye and Ear Infirmary, Boston, Massachusetts 02114, USA
    Ear Hear 33:19-34. 2012
    ..This study compares measurements of ear-canal reflectance (ECR) to other objective measurements of middle ear function including audiometry, umbo velocity (VU), and tympanometry in a population of strictly defined normal-hearing ears...
  9. ncbi Comparison between intensity and pressure as measures of sound level in the ear canal
    S T Neely
    Boys Town National Research Hospital, Omaha, Nebraska 68131, USA
    J Acoust Soc Am 104:2925-34. 1998
    ..be problematic at frequencies above 2 kHz, because the pressure can vary significantly along the length of the ear canal, due to reflection of sound waves at the eardrum...
  10. ncbi Stimulus-frequency-emission group delay: a test of coherent reflection filtering and a window on cochlear tuning
    Christopher A Shera
    Eaton Peabody Laboratory of Auditory Physiology, Massachusetts Eye and Ear Infirmary 243 Charles Street, Boston, Massachusetts 02114, USA
    J Acoust Soc Am 113:2762-72. 2003
    ..The measurements and analysis reported here illustrate the rich potential inherent in OAE measurements for obtaining valuable information about basic cochlear properties such as tuning...
  11. pmc Further assessment of forward pressure level for in situ calibration
    Rachel A Scheperle
    Department of Communication Sciences and Disorders, University of Iowa, Iowa City, Iowa 52242, USA
    J Acoust Soc Am 130:3882-92. 2011
    ..Additionally, FPL calibration appears a reasonable option when quantifying the levels of extended high-frequency (10-18 kHz) stimuli...
  12. ncbi Ultrasonographic evaluation of the external ear canal and tympanic membrane in dogs
    Jeongmin Lee
    Department of Veterinary Diagnostic Imaging, College of Veterinary Medicine, Kyungpook National University, 1370, Sangyeok dong, Buk Ku, Daegu, Korea
    Vet Radiol Ultrasound 47:94-8. 2006
    Ultrasonographic imaging of the canine external ear canal, tympanic membrane, and tympanic bulla was described in five healthy beagle dogs before and after infusion of saline into the ear canal. Saline served as an acoustic window...
  13. ncbi Estimated variability of real-ear insertion response (REIR) due to loudspeaker type and placement
    Michael A Stone
    Department of Experimental Psychology, University of Cambridge, Cambridge, UK
    Int J Audiol 43:271-5. 2004
    ..of a hearing aid is estimated as the difference between the aided response and the unaided response in the ear canal. Changes in the position of the loudspeaker relative to the head, between the two measurements, may reduce the ..
  14. ncbi Factors affecting the frequency of ear canal and face infestation by Otodectes cynotis in the cat
    S T Sotiraki
    Laboratory of Parasitology and Parasitic Diseases, Faculty of Veterinary Medicine, Department of Infectious and Parasitic Diseases, Aristotle University, GR 54006, Thessaloniki, Greece
    Vet Parasitol 96:309-15. 2001
    ..2-9). Cats with mild-to-moderate degree of infestation had 18 times higher chance of exhibiting an ear discharge than those with a severe infestation. The log-odds of mild-to-moderate parasitism were linearly related to the age...
  15. ncbi Syringocystoadenoma papilliferum of the external ear canal: an immunohistochemical study
    Gino Marioni
    Acta Otolaryngol 124:761-2. 2004
  16. pmc Isolating the auditory system from acoustic noise during functional magnetic resonance imaging: examination of noise conduction through the ear canal, head, and body
    M E Ravicz
    Eaton-Peabody Laboratory, Massachusetts Eye and Ear Infirmary, Boston 02114, USA
    J Acoust Soc Am 109:216-31. 2001
    ..Specifically, it was examined whether a device for isolating the head and ear canal from sound (a "helmet") could add to the isolation provided by conventional hearing protection devices ..
  17. pmc Breaking away: violation of distortion emission phase-frequency invariance at low frequencies
    Sumitrajit Dhar
    Hugh Knowles Center, Roxelyn and Richard Pepper Department of Communication Sciences and Disorders, Northwestern University, Evanston, Illinois 60208, USA
    J Acoust Soc Am 129:3115-22. 2011
    ..This experiment asked whether the phase behavior of the ear canal DPOAE at low frequencies is driven by the phase of the component from the distortion product (DP) region at 2f(1)..
  18. pmc Inverse solution of ear-canal area function from reflectance
    Daniel M Rasetshwane
    Boys Town National Research Hospital, 555 North 30th Street, Omaha, Nebraska 68131, USA
    J Acoust Soc Am 130:3873-81. 2011
    ..transformation of acoustical quantities, such as impedance and pressure that are measured at the entrance of the ear canal, to quantities at the eardrum. This transformation often requires knowledge of the shape of the ear canal...
  19. ncbi The effects of receiver placement on probe microphone, performance, and subjective measures with open canal hearing instruments
    Lynzee N Alworth
    Department of Audiology and Speech Pathology, University of Tennessee, 578 South Stadium Hall, Knoxville, TN 37996 0740, USA
    J Am Acad Audiol 21:249-66. 2010
    Open canal hearing instruments differ in method of sound delivery to the ear canal, distance between the microphone and the receiver, and physical size of the devices...
  20. ncbi Cavernous haemangioma of external ear canal
    E Covelli
    Department of Neurology and Otolaryngology, La Sapienza University, Rome, Italy
    J Laryngol Otol 122:e19. 2008
    ..The aim of this study was to document the occurrence of a cavernous haemangioma of the external auditory canal, and to review the literature on this pathology...
  21. ncbi Hemangiomas of the external auditory canal
    Kimberley D Rutherford
    Division of Otolaryngology Head and Neck Surgery, University of Connecticut Health Center, Farmington, CT 06030, USA
    Am J Otolaryngol 31:384-6. 2010
    ..In addition, we review the relevant literature with respect to epidemiology, presentation, evaluation, pathology, and management options for hemangiomas arising in the external auditory canal...
  22. ncbi Detection of Alloiococcus otitidis in the nasopharynx and in the outer ear canal
    R Durmaz
    Inonu University, Faculty of Medicine, Department of Microbiology and Clinical Microbiology, Malatya Turky
    New Microbiol 25:265-8. 2002
    ..otitidis, 145 swabs (50, nasopharynx; 95 outer ear canal) collected from 50 children were screened by polymerase chain reaction. A. otitidis DNA was detected in seven (4...
  23. ncbi Development of a non-radiographic cephalometric system
    Satoshi Nagasaka
    Department of Orthodontics, Tsurumi University School of Dental Medicine, Yokohama City, Kanagawa Prefecture, Japan
    Eur J Orthod 25:77-85. 2003
    ....
  24. ncbi External auditory canal carcinoma involving the temporomandibular joint: two cases presenting as temporomandibular disorders
    Trevor Treasure
    Department of Surgery, Texas Tech Health Sciences Center, School of Medicine, Amarillo, TX 79106, USA
    J Oral Maxillofac Surg 60:465-9. 2002
  25. ncbi Mode of parotid involvement in external auditory canal carcinoma
    Jae Young Choi
    Department of Otorhinolaryngology, Yonsei University College of Medicine, Seoul, Korea
    J Laryngol Otol 117:951-4. 2003
    ....
  26. ncbi Cavernous hemangioma of the bony external auditory canal
    Tsung Han Yang
    Department of Otolaryngology, Taipei Medical University Hospital, Taipei Medical University, Taipei, Taiwan
    Otolaryngol Head Neck Surg 134:890-1. 2006
  27. pmc Posture systematically alters ear-canal reflectance and DPOAE properties
    Susan E Voss
    Picker Engineering Program, Smith College, 51 College Lane, Northampton, MA 01063, USA
    Hear Res 263:43-51. 2010
    ..Intra-subject variability, assessed via standard deviations for each subject's multiple measurements, were generally smaller in the upright position relative to the tilted position...
  28. ncbi Ceruminous adenomas: a clinicopathologic study of 41 cases with a review of the literature
    Lester D R Thompson
    Department of Endocrine Otorhinolaryngic Head and Neck Pathology, Armed Forces Institute of Pathology, Washington, DC, USA
    Am J Surg Pathol 28:308-18. 2004
    ..Ceruminous gland neoplasms are rare neoplasms. To date, a large clinicopathologic study of benign ceruminous gland neoplasms has not been reported...
  29. ncbi Isolation and antimicrobial susceptibility of bacteria from external ear canal of cancer patients at Shafa Cancer Hospital-Ahwaz
    E Kalantar
    School of Paramedical Sciences, Ahwaz Jundi Shapour University of Medical Sciences, Ahwaz, Iran
    J Cancer Res Ther 2:17-9. 2006
    A bacteriological study of external ear canal was performed in 52 hospitalized cancer patients and 42 non hospitalized cancer patients at Shafa hospital, Ahwaz...
  30. ncbi Hemangioma of the external auditory canal
    Charles J Limb
    Department of Otolaryngology Head and Neck Surgery, Johns Hopkins University School of Medicine, Baltimore, Maryland 21287 0910, USA
    Otolaryngol Head Neck Surg 126:74-5. 2002
  31. pmc Effects of ear-canal pressurization on middle-ear bone- and air-conduction responses
    Kenji Homma
    Adaptive Technologies, Inc, 2020 Kraft Dr, Suite 3040, Blacksburg, VA 24060, USA
    Hear Res 263:204-15. 2010
    ..this mid-frequency BC noise transmission is to introduce a positive or negative static pressure in the ear canal, which is known to reduce BC as well as AC hearing sensitivity...
  32. ncbi A rare case of a sebaceous nevus in the external auditory canal
    Nici Eddy Bothwell
    Department of Otolaryngology Head and Neck Surgery, Madigan Army Medical Center, Fort Lewis, Tacoma, Wash, USA
    Ear Nose Throat J 82:38-41. 2003
    ..This case report adds the sebaceous nevus to the differential diagnosis of external auditory canal lesions and provides essential information about this rare mass...
  33. ncbi Irritated seborrheic keratosis of the external ear canal
    Eiichi Konishi
    Department of Laboratory Medicine, Saiseikai Kyoto Hospital, Kyoto, Japan
    Pathol Int 53:622-6. 2003
    ..skin of the trunk, extremities, head and neck of an elderly person, it is uncommon to originate in the external ear canal. Even rarer, an irritated subtype may arise in this location...
  34. pmc Sound pressure distribution and power flow within the gerbil ear canal from 100 Hz to 80 kHz
    Michael E Ravicz
    Eaton Peabody Laboratory, Massachusetts Eye and Ear Infirmary, 243 Charles Street, Boston, Massachusetts 02114, USA
    J Acoust Soc Am 122:2154-73. 2007
    Sound pressure was mapped in the bony ear canal of gerbils during closed-field sound stimulation at frequencies from 0.1 to 80 kHz. A 1.27-mm-diam probe-tube microphone or a 0...
  35. ncbi Pigmented nevus of the external auditory canal
    Fei Peng Lee
    Department of Otolaryngology, Taipei Medical University, University Hospital, 252 Wu Hsing Street, Taipei 110, Taiwan
    Otolaryngol Head Neck Surg 135:124-8. 2006
    ..To present the clinical experience during an 18-year period of a series of 11 cases of pigmented nevus of the external auditory canal (EAC)...
  36. ncbi Evaluation of a local anesthetic delivery system for the postoperative analgesic management of canine total ear canal ablation--a randomized, controlled, double-blinded study
    Tina M Wolfe
    Cincinnati Animal Referral and Emergency Center, Cincinnati, OH 45249, USA
    Vet Anaesth Analg 33:328-39. 2006
    ..To determine if a constant rate local anesthetic delivery system is more effective than continuous intravenous (IV) morphine infusion for postoperative analgesia...
  37. ncbi An intradermal nevus of the external auditory meatus
    K Cagdas Kazikdas
    Department of Otorhinolaryngology, Ataturk Training and Research Hospital, Izmir, Turkey
    Eur Arch Otorhinolaryngol 263:253-5. 2006
    ..Thus, this is a unique case of intradermal nevus obstructing the external ear canal with the patient presenting with progressive hearing loss...
  38. ncbi Acoustic recordings in human ear canals to sounds at different locations
    Clinton A Kuwada
    Division of Otolaryngology, Department of Neuroscience, University of Connecticut Health Center, Farmington, CT 06030 3401, USA
    Otolaryngol Head Neck Surg 142:615-7. 2010
    ..For humans, we embedded microphones in ear molds that were custom fitted to the subject's ear canal. For the ball, the microphones were flush with the surface at +/- 90 degrees azimuths on the equator...
  39. ncbi Occurrence and population size of Malassezia spp. in the external ear canal of dogs and cats both healthy and with otitis
    Claudia Cafarchia
    Dipartimento di Sanità e Benessere Animale, Facolta di Medicina Veterinaria, Valenzano, Bari, Italy
    Mycopathologia 160:143-9. 2005
    ..to evaluate the occurrence, risk factors and population size of different species of Malassezia in the external ear canal of dogs and cats with and without otitis externa...
  40. ncbi Auditory localization of nearby sources. Head-related transfer functions
    D S Brungart
    Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge 02139, USA
    J Acoust Soc Am 106:1465-79. 1999
    ..Overall, the results suggest that binaural cues play an important role in auditory distance perception for nearby sources...
  41. ncbi Use of a continuous, local infusion of bupivacaine for postoperative analgesia in dogs undergoing total ear canal ablation
    MaryAnn G Radlinsky
    Department of Clinical Sciences, College of Veterinary Medicine, Kansas State University, Manhattan, KS 66506 5606, USA
    J Am Vet Med Assoc 227:414-9. 2005
    To determine whether addition of a continuous, local infusion of bupivacaine would improve postoperative analgesia in dogs undergoing total ear canal ablation.
  42. ncbi Emergency department management of foreign bodies of the external ear canal in children
    James DiMuzio
    Department of Otolaryngology, School of Osteopathic Medicine, University of Medicine and Dentistry of New Jersey, Stratford, NJ, U S A
    Otol Neurotol 23:473-5. 2002
    ..To evaluate the management of foreign bodies in the external auditory canal (EAC) in pediatric patients by emergency department personnel...
  43. ncbi Head-related transfer functions of the barn owl: measurement and neural responses
    C H Keller
    Institute of Neuroscience, University of Oregon, Eugene 97403, USA
    Hear Res 118:13-34. 1998
    ..The inner ca. 1 cm of the ear canal was found to contribute little to the directionality of the HRTFs...
  44. ncbi Modeling of sound transmission from ear canal to cochlea
    Rong Z Gan
    School of Aerospace and Mechanical Engineering and Bioengineering Center, University of Oklahoma, 865 Asp Avenue, Room 200, Norman, OK 73019, USA
    Ann Biomed Eng 35:2180-95. 2007
    A 3-D finite element (FE) model of the human ear consisting of the external ear canal, middle ear, and cochlea is reported in this paper...
  45. ncbi Para-aural abscessation following traumatic ear canal separation in a dog
    N A Connery
    Department of Veterinary Surgery, Faculty of Veterinary Medicine, University College Dublin, Ireland
    J Small Anim Pract 42:253-6. 2001
    Traumatic ear canal separation is rare in animals, with only eight dogs and one cat reported with the condition in the English language literature. Para-aural abscessation occurred in six of these nine animals...
  46. ncbi Two-step external ear canal construction in atresia as part of auricular reconstruction
    R Siegert
    Department of Oto Rhino Laryngology, Head and Neck Surgery, Prosper Hospital, Academic Teaching Hospital, Ruhr University Bochum, Recklinghausen, Germany
    Laryngoscope 111:708-14. 2001
    One of the common complications of atresia surgery is restenosis of the surgically constructed external ear canal. To avoid this complication, a new two-step technique of creating an external ear canal was developed and evaluated.
  47. ncbi [Bilateral bone anchored hearing aid management of children with external ear dysplasia and/or ear canal atresia]
    N Missfeldt
    Institut für Phoniatrie und Pädaudiologie, Vestische Kinderklinik, Universitat Witten Herdecke, Dr Friedrich Steiner Strasse 5, 45711 Datteln
    HNO 50:495-500. 2002
    ..The literature gives hardly any information about the benefits for children of using a bilateral bone-anchored hearing aid (BAHA) as opposed to a bilateral conventional bone conducting hearing aid...
  48. ncbi Keratosis obturans and external ear canal cholesteatoma: how and why we should distinguish between these conditions
    R A P Persaud
    Department of Otolaryngology, Head and Neck Surgery, Royal National Throat Nose and Ear Hospital London, UK
    Clin Otolaryngol Allied Sci 29:577-81. 2004
    Keratosis obturans and external ear canal cholesteatomas have been considered as separate entities for the last 20 years, after being regarded as variations of the same disease for at least 87 years...
  49. ncbi Surgery of the ear and pinna
    Otto I Lanz
    Department of Small Animal Clinical Sciences, Virginia Maryland Regional College
    Vet Clin North Am Small Anim Pract 34:567-99, viii. 2004
    ..and common surgical procedures of the ear and pinna, including aural hematomas, lateral wall resection, vertical ear canal resection, total ear canal ablation and lateral bulla osteotomy, partial pinna resection, and feline ..
  50. ncbi Canal wall down tympanomastoidectomy: the 'on-disease' approach for retraction pockets and cholesteatoma
    D S Grewal
    Department of Ear, Nose, Throat and Head and Neck Surgery, Topiwala National Medical College and B Y L Nair Charitable Hospital, Mumbai, Maharashtra, India
    J Laryngol Otol 121:832-9. 2007
    ..Canal wall down tympanomastoidectomy performed by the on-disease approach ensures complete eradication of the disease, with excellent curative as well as functional results...
  51. ncbi Mastoid obliteration combined with soft-wall reconstruction of posterior ear canal
    Haruo Takahashi
    Department of Otolaryngology Head and Neck Surgery, Nagasaki University Graduate School of Biomedical Sciences, 1 7 1 Sakamoto, Nagasaki, 852 8501, Japan
    Eur Arch Otorhinolaryngol 264:867-71. 2007
    ..cavity problem, and 4 ears with adhesive-type COM, who had soft-wall reconstruction of the posterior ear canal and mastoid obliteration using mainly bone powder following mastoidectomy, were evaluated their postoperative ..
  52. ncbi Butterfly cartilage graft inlay tympanoplasty for large perforations
    Marcielle A Ghanem
    Massachusetts Eye and Ear Infirmary, Boston, Massachusetts, USA
    Laryngoscope 116:1813-6. 2006
    ..Butterfly graft inlay tympanoplasty is a well-established technique for the repair of small perforations. However, the efficacy of the technique for medium and large tympanic membrane perforations remains unknown...
  53. ncbi Leiomyoma of the external auditory canal--a case report and brief review of the literature
    Shiou Yu Yeh
    Department of Otolaryngology, Far Eastern Memorial Hospital, 21, Sec 2 Nan Ya S Rd, Pan Chiao, Taipei, Taiwan
    Eur Arch Otorhinolaryngol 262:397-9. 2005
    ..The proper treatment of choice is complete excision. In case of an external auditory canal tumor, even if it is believed to be benign before surgery, precise pathologic examination is required to exclude the possibility of malignancy...
  54. ncbi [High duplication of an internal jugular vein]
    F C Uecker
    Klinik für Hals Nasen Ohrenheilkunde, Universitatsklinikum Dresden
    Laryngorhinootologie 86:592-4. 2007
    ..We report on a duplicated internal jugular vein, which is a rare anatomic anomaly and discuss aetiology and appearance of this malformation and the possible affecting of the accessory nerve...
  55. ncbi Deep temporal fascial-periosteal flap for canal wall down mastoidectomy
    Dong Hee Lee
    Department of Otolaryngology Head and Neck Surgery, College of Medicine, The Catholic University of Korea, Seoul, Korea
    Laryngoscope 116:2229-31. 2006
    ....
  56. ncbi The Z-meatoplasty for modified radical mastoidectomy in children
    David E Tunkel
    Department of Otolaryngology Head and Neck Surgery, Johns Hopkins University School of Medicine, Baltimore, MD 21287 0910, USA
    Arch Otolaryngol Head Neck Surg 132:1319-22. 2006
    ..To determine the effectiveness of the Z-meatoplasty technique for enlargement of the external auditory meatus of children undergoing modified radical mastoidectomy...
  57. ncbi Retrograde mastoidectomy with canal wall reconstruction: a follow-up report
    John L Dornhoffer
    Department of Otolaryngology Head and Neck Surgery, University of Arkansas for Medical Sciences, Little Rock, Arkansas 72205, USA
    Otol Neurotol 25:653-60. 2004
    ..To evaluate long-term results of retrograde mastoidectomy with canal wall reconstruction as a single-stage technique for cholesteatoma removal...
  58. ncbi Canal wall reconstruction tympanomastoidectomy with mastoid obliteration
    Thomas Deitmer
    Laryngoscope 116:1299; author reply 1299. 2006
  59. ncbi Medial canal fibrosis: surgical technique, results, and a proposed grading system
    Vincent Yu Wen Lin
    Department of Otolaryngology, Sunnybrook and Women s College Health Science Center, Toronto, Ontario, Canada
    Otol Neurotol 26:825-9. 2005
    ..To describe the surgical technique for removal of medial canal fibrosis and to propose a classification for grading postoperative surgical outcome and to correlate this with hearing results...
  60. ncbi [Imaging of the temporal bone. An overview]
    T Struffert
    Klinik für Diagnostische und Interventionelle Neuroradiologie, Universitätsklinikum des Saarlandes Homburg Saar
    Radiologe 45:816-27. 2005
    ..For examining the labyrinth system and interior auditory channel, MRI is the method of choice. This article gives an overview of the anatomy of the temporal bone and describes the most important pathologies...
  61. ncbi Squamous cell carcinoma in situ of the external auditory canal
    Min Tsan Shu
    Departments of Otolaryngology Head and Neck Surgery, Mackay Memorial Hospital, Taipei, Taiwan
    J Laryngol Otol 120:684-6. 2006
    ..No tumour recurrence was noted in the fourth and third post-operative year for the first and second patient respectively. We suggest that EAC carcinoma can be detected early and treated...
  62. ncbi Gerbilline cholesteatoma development. Part II: temporal histopathologic changes in the tympanic membrane and middle ear
    Steven P Tinling
    Department of Otolaryngology Head and Neck Surgery, University of California, Davis, School of Medicine, Davis, California 95616, USA
    Otolaryngol Head Neck Surg 134:953-60. 2006
    ..Determine the sequence of gross and histopathologic change to the normal middle ear (ME), tympanic membrane (TM), and external auditory canal (EAC) during spontaneous gerbilline cholesteatoma development...
  63. ncbi [External auditory canal reconstruction and mastoid cavity obliteration with composite multifractured osteoperiosteal flap: a preliminary study]
    Cevat Uçar
    Department of Otolaryngology, Turkiye Hospital, Istanbul, Turkey
    Kulak Burun Bogaz Ihtis Derg 16:127-31. 2006
    ..We used inferior pedicled composite multifractured osteoperiosteal flap, which is our original surgical approach to obliterate the mastoid cavity, reconstruct the external auditory canal (EAC), and to prevent open cavity problems...
  64. ncbi A case of osteoma with cholesteatoma in the external auditory canal
    Dong Hee Lee
    Department of Otolaryngology Head and Neck Surgery, College of Medicine, The Catholic University of Korea, Seoul, South Korea
    Auris Nasus Larynx 32:281-4. 2005
    ..The canal wall down mastoidectomy and tympanoplasty successfully removed the osteoma and the cholesteatoma, and no recurrence or complications had occurred in the first 6 months postoperatively...
  65. ncbi [Expansion of an ceruminous adenoma into the middle ear]
    M Teschner
    Medizinische Hochschule Hannover, Klinik und Poliklinik für Hals Nasen Ohrenheilkunde, 30625 Hannover
    Laryngorhinootologie 85:444-7. 2006
    ..Owing to a high recurrence rate, complete surgical removal is necessary. Despite its rare occurrence, a ceruminal gland adenoma must be taken into consideration in the differential diagnosis of individual cholesteatoma cases...
  66. ncbi Fine-needle biopsy of external ear canal masses in the cat: cytologic results and histologic correlations in 27 cases
    Davide De Lorenzi
    Clinica Veterinaria S Marco, Padua, Italy Clinica Veterinaria Gran Sasso, Milan, Italy
    Vet Clin Pathol 34:100-5. 2005
    The cytologic diagnosis of ear canal tumors is difficult or impossible by swab alone because cell exfoliation may be poor and neoplastic cells may be masked by associated inflammation...
  67. pmc Three-dimensional virtual model of the human temporal bone: a stand-alone, downloadable teaching tool
    Haobing Wang
    Eaton Peabody Laboratory of Auditory Physiology, Massachusetts Eye and Ear Infirmary, Department of Otology and Laryngology, Harvard Medical School, Boston, Massachusetts 02114, USA
    Otol Neurotol 27:452-7. 2006
    ..To develop a three-dimensional virtual model of a human temporal bone based on serial histologic sections...
  68. ncbi [Transmastoidal resection of an endaural encephalocele--a case report]
    T Schrom
    Klinik fur Hals, Nasen, Ohrenkrankheiten, Humboldt Universitat zu Berlin, Charite Campus Mitte
    Laryngorhinootologie 84:273-6. 2005
    ..Nevertheless there are recent studies preferring the transtemporal or combined approach because of the better survey...
  69. ncbi Glomus jugulare tumor
    Paul K Holden
    Keck School of Medicine, Los Angeles, California, USA
    Otol Neurotol 26:312-3. 2005
  70. ncbi A case of otomycosis caused by Aspergillus sclerotiorum
    Natsuko Harima
    J Dermatol 31:949-50. 2004
  71. ncbi Traumatic cholesteatoma presenting as a brain abscess: a case report
    Kshitij Majmundar
    Department of Otolaryngology, Head and Neck Surgery, Virginia Commonwealth University Medical Center, Medical College of Virginia Hospitals and Physicians, Richmond, Virginia 23298, USA
    Otol Neurotol 26:65-7. 2005
    ..To discuss the clinical aspects and management of traumatic cholesteatomas of the temporal bone...
  72. ncbi [The outcome of treatments for carcinoma of the external auditory canal]
    S Schmerber
    CHRU Grenoble, Service d Oto Rhino Laryngologie, F 38043 Grenoble 09, France
    Rev Laryngol Otol Rhinol (Bord) 126:165-70. 2005
    ..A retrospective analysis of management and survival of patients treated for temporal bone carcinoma...
  73. ncbi Assessment of visualization of structures in the middle ear via Tos modified canal wall-up mastoidectomy versus classic canal wall-up and canal wall-down mastoidectomies
    Cem Uzun
    Otorhinolaryngology Department, Trakya University, Faculty of Medicine, Edirne, Turkey
    Int J Pediatr Otorhinolaryngol 71:851-6. 2007
    ..The aim of this prospective study is to evaluate the differences in the ability to view structures in the middle ear between Tos modified canal wall-up mastoidectomy and classic canal wall-up (CWU) and canal wall-down (CWD) mastoidectomies...
  74. ncbi Atypical indications for OtoScan laser-assisted myringotomy
    J P Bent
    Department of Otolaryngology, Albert Einstein School of Medicine, New York Otolaryngology Institute, New York 10021, USA
    Laryngoscope 111:87-9. 2001
    ..CONCLUSIONS: Although this report contains preliminary data, the data suggest that OtoLAM may provide an additional option in the care of certain patients who have previously been treated with myringotomy tubes...
  75. ncbi Management of cholesteatoma: status of the canal wall
    Mark J Syms
    Section of Neurotology, Department of Neurosurgery, Barrow Neurological Institute, St Joseph s Hospital and Medical Center, Phoenix, AZ 85013 4480, USA
    Laryngoscope 113:443-8. 2003
    ..Management of chronic otitis media with cholesteatoma remains controversial. The purpose of the study is to examine factors associated with the surgical approach to manage cholesteatoma...
  76. ncbi Imaging of postoperative middle ear, mastoid, and external auditory canal
    Anil G Rao
    Department of Radiology, Rush Presbyterian Medical Center, Chicago, IL, USA
    Semin Ultrasound CT MR 23:460-5. 2002
  77. ncbi Assessment of total middle ear reconstruction by patient survey correlated with clinical findings
    Anting Xu
    Department of Otolaryngology, Faculty of Medicine, University of Tokyo, 7 3 1 Hongo, Bunkyo ku, Tokyo 113 8655, Japan
    Auris Nasus Larynx 30:15-20. 2003
    ..Our objective was to assess, by patient survey and clinical examination, the results of correctional total middle ear reconstruction of problematic mastoid cavities following radical or modified radical mastoidectomy...
  78. ncbi Improvements to staged canal wall up tympanoplasty for middle ear cholesteatoma
    Yasuyuki Hinohira
    Department of Otolaryngology, Takanoko Hospital, Ehime, Japan
    Otolaryngol Head Neck Surg 137:913-7. 2007
    ..To describe our improvements to staged canal wall up tympanoplasty with mastoidectomy (SCUT) for middle ear cholesteatoma, and to show more successful outcomes of the surgery compared with our data previously reported...
  79. ncbi Management of chronic otitis by middle ear obliteration with blind sac closure of the external auditory canal
    Mario Sanna
    Gruppo Otologico Piacenza, Rome, Italy
    Otol Neurotol 29:19-22. 2008
    ..Description of a technique of middle ear obliteration (MEO) with blind sac closure of the external auditory canal with discussion of the indications for its use in cases of recalcitrant chronic otitis and in far advanced disease...
  80. ncbi Evolution of a paradigm for free tissue transfer reconstruction of lateral temporal bone defects
    Eben L Rosenthal
    Department of Surgery, Division of Otolaryngology Head and Neck Surgery, University of Alabama at Birmingham, Birmingham, Alabama, USA
    Head Neck 30:589-94. 2008
    ..Multiple pedicled flaps have been used to reconstruct these defects. Free flaps have been shown to provide the best tissue for these reconstructions. We review our experience and present an algorithm for their reconstruction...
  81. ncbi Imaging of hearing loss
    Michele B St Martin
    Department of Otolaryngology, University of Florida, PO Box 100264, 1600 SW Archer Road M228, Gainesville, FL 32610, USA
    Otolaryngol Clin North Am 41:157-78, vi-vii. 2008
    ..In general, the external auditory canal, middle ear space, mastoid, petrous apex, and otic capsule are best visualized with CT, whereas suspicion of retrocochlear pathology warrants MRI...
  82. ncbi Nodular fasciitis of the external auditory canal in six Egyptian children
    Mosaad Abdel-Aziz
    Department of Otolaryngology, Faculty of Medicine, Cairo University, Egypt
    Int J Pediatr Otorhinolaryngol 72:643-6. 2008
    ..Nodular fasciitis of external auditory canal may mimic a malignant tumor due to its progressive course, so it was the aim of this study to focus on a new etiology for aural masses to avoid unnecessary aggressive treatment...
  83. ncbi Effect of a large-sized silicone sheet upon recovery of mastoid aeration after mastoidectomy
    Kyosuke Kazama
    Department of Otolaryngology Head and Neck Surgery, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
    Otolaryngol Head Neck Surg 138:738-42. 2008
    ..To evaluate the effect of our large-sized silicone sheet upon postoperative recovery of mastoid aeration in ears after surgery including mastoidectomy and soft-wall reconstruction (SWR)...
  84. ncbi Anteroposterior approach with split ear canal for cochlear implantation in severe malformations
    Levent Sennaroglu
    Department of Otolaryngology Head and Neck Surgery, Hacettepe University Medical Faculty, Ankara, Turkey
    Otol Neurotol 23:39-42; discussion 42-3. 2002
    To present an anteroposterior approach with split ear canal technique in severe malformed ears in which cochlear implantation is not possible through the standard facial recess approach.
  85. ncbi Postauricular periosteal-pericranial flap for mastoid obliteration and canal wall down tympanomastoidectomy
    Mitchell J Ramsey
    Department of Otolaryngology, Massachusetts Eye and Ear Infirmary, Harvard Medical School, Boston, Massachusetts 02114, USA
    Otol Neurotol 25:873-8. 2004
    ..To describe an effective technique for mastoid cavity obliteration in canal wall down tympanomastoidectomy for chronic otitis media and review its efficacy in producing a dry, low-maintenance, small mastoid cavity...
  86. ncbi Management of anterior epitympanic cholesteatoma: expectations after epitympanic approach and canal wall reconstruction
    Larry G Duckert
    Department of Otolaryngology Head and Neck Surgery, University of Washington, Seattle, Washington 98195 7923, USA
    Otol Neurotol 23:8-13. 2002
    ..However, validation of this theory is lacking...
  87. ncbi Reconstruction of the posterior auditory canal with hydroxyapatite-coated titanium
    G Magliulo
    II ENT Clinic, University La Sapienza, Rome, Italy
    J Otolaryngol 30:330-3. 2001
    ..To date, there has been no evidence of cholesteatoma recurrence. The preliminary results remain encouraging. Larger series and longer follow-up, however, are advisable to prove real validity...
  88. ncbi Bilateral squamous cell carcinoma of the external auditory canals
    Stephen G Wolfe
    Department of Otorhinolaryngology Head and Neck Surgery, University of Pennsylvania Health System, Philadelphia 19104, USA
    Laryngoscope 112:1003-5. 2002
    ..To report a case of bilateral squamous cell carcinoma of the external auditory canals and to present a management algorithm for this difficult clinical scenario...
  89. ncbi Middle-ear mechanics of Type III tympanoplasty (stapes columella): I. Experimental studies
    Ritvik P Mehta
    Department of Otolaryngology, Massachusetts Eye and Ear Infirmary, Boston, MA 02114, USA
    Otol Neurotol 24:176-85. 2003
    ..To investigate the mechanics of Type III tympanoplasty by developing a cadaveric temporal bone model...
  90. ncbi External auditory canal cholesteatoma: clinical and imaging spectrum
    Marta E Heilbrun
    Department of Radiology, Division of Neuroradiology, University of Utah School of Medicine, Salt Lake City, USA
    AJNR Am J Neuroradiol 24:751-6. 2003
    ..In this large case series, we aimed to define its imaging features and to determine the characteristics most important to its clinical management...
  91. ncbi Liposarcoma of temporal bone: a case report
    Toru Seo
    Department of Otolaryngology, Takarazuka Municipal Hospital, 4 5 1, Kohama, Takarazuka, Hyogo 665 0827, Japan
    Auris Nasus Larynx 34:511-3. 2007
    ..Neither local recurrence nor distant metastasis has been detected for 24 months after the first surgery. The favorable outcome in this patient was probably due to the histological type of his liposarcoma...
  92. ncbi Embryonal rhabdomyosarcoma of the temporal bone
    Borlingegowda Viswanatha
    ENT Department, Victoria Hospital, Bangalore Medical College, Bangalore, Karnataka, India
    Ear Nose Throat J 86:218, 220-2. 2007
    ..Despite surgery and chemotherapy, the patient died of his disease within 3 months of presentation...
  93. ncbi [Post-traumatic cholesteatoma of temporal bone]
    Jerzy Kuczkowski
    Katedra i Klinika Chorób Uszu, Nosa, Gardła i Krtani AM w Gdańsku
    Otolaryngol Pol 61:207-10. 2007
    ..bone years after trauma may prove hindered healing, which promotes migration of epithelium from external ear canal into the middle ear...
  94. ncbi [Reconstruction of the wall of the canal]
    A Desaulty
    Service Oto-neurologique, , CHU Lille, France
    Acta Otorhinolaryngol Belg 43:7-18. 1989
    ..The tolerance is good. The two procedures are variable and reliable in 80% of cases...
  95. ncbi Invasive fungal and bacterial infections of the temporal bone
    Sam J Marzo
    Department of Otolaryngology Head and Neck Surgery, Loyola University of Chicago, Maywood, Illinois, USA
    Laryngoscope 113:1503-7. 2003
    ..the importance of surgical therapy in treating invasive polymicrobial infections of the temporal bone, to discuss the importance of antifungal therapy, and to review the differential diagnosis of ear canal granulomatous disorders.
  96. ncbi [HRCT findings in congenital aural atresia]
    Mahmut Kebapci
    Osmangazi Universitesi Tip Fakultesi, Radyoloji Anabilim Dali, Eskisehir
    Tani Girisim Radyol 9:47-53. 2003
    ..To define high resolution computed tomography findings in the external, middle and inner ear of patients with congenital aural atresia and to emphasize the importance of these findings in the preoperative evaluation...
  97. ncbi Surgical treatment of cholesteatoma in children
    Hakan Gocmen
    ENT Department, Ministry of Health, Ankara Research and Training Hospital, Ankara, Turkey
    Int J Pediatr Otorhinolaryngol 67:867-72. 2003
    ..To present our experience in the surgical treatment of cholesteatoma in children...
  98. ncbi Mitomycin-C in the postsurgical ear canal
    Vishal Banthia
    Department of Otorhinolaryngology, Weill College of Medicine of Cornell University, New York, New York, 10021, USA
    Otolaryngol Head Neck Surg 128:882-6. 2003
    ..Study design and setting We conducted a prospective pilot study at a tertiary care institution...
  99. ncbi Posterior and attic wall osteoplasty: hearing results and recurrence rates in cholesteatoma
    Gregorio Babighian
    Department of Otosurgery and Otoneurosurgery, Az Ospedaliera Università, Padua, Italy
    Otol Neurotol 23:14-7. 2002
    ..To assess the efficacy of a surgical technique, the temporary attic and posterior canal wall osteoplasty, in preventing cholesteatoma recurrence...
  100. ncbi Chronic otitis externa/media with total ear canal ablation and bulla curettage in a North American bison (Bison bison)
    S T Ferrell
    Companion Avian and Exotic Pet Medicine Service, Veterinary Medical Teaching Hospital, University of California, One Shields Avenue, Davis, California 95616, USA
    J Zoo Wildl Med 32:393-5. 2001
    ..A total ear canal ablation with bulla curettage was performed, and cefazolin-impregnated polymethacrylate beads were left within ..
  101. ncbi First branchial cleft sinus presenting with cholesteatoma and external auditory canal atresia
    Sinasi Yalcin
    Department of Otorhinolaryngology, Firat University School of Medicine, Tip Fakultesi, KBB Anabilim Dali, 23119, Elazig, Turkey
    Int J Pediatr Otorhinolaryngol 67:811-4. 2003
    ..The surgical management of these lesions may be performed, both the complete excision of the sinus and reconstructive otologic surgery...

Research Grants62

  1. WIDEBAND CLINICAL DIAGNOSIS AND MONITORING OF MIDDLE-EAR AND COCHLEAR FUNCTION
    Douglas H Keefe; Fiscal Year: 2013
    ..The tests measure acoustic responses to sounds presented in the ear canal. The acoustic immittance tests in the battery to assess middle-ear function are an acoustic transfer function (..
  2. Middle-ear Mechanics in Normal and Pathological Ears
    John J Rosowski; Fiscal Year: 2013
    ..and laser holography of motion of the tympanic membrane in order to: a) investigate correlations between ear canal reflectance and umbo velocity in normal and pathologic ears, b) define critical structural features that ..
  3. Molecular roles in active and passive mechanics in cochlear hair bundles
    ANTHONY WEI PENG; Fiscal Year: 2013
    DESCRIPTION (provided by applicant): Sound vibrations enter the outer ear through the ear canal and are converted into pressure waves by the middle ear...
  4. Ear Canal Optical Coherent Tomography System
    PAUL SHNITSER; Fiscal Year: 2010
    ..Physical Optics Corporation proposes development of a new Ear Canal Optical Coherent Tomography (ECOCT) system to obtain the shape of the individual ear canal and the corresponding ..
  5. Completely Digitizing the Custom-Fit Hearing Aid Shell Manufacturing Process
    STEVEN YI; Fiscal Year: 2010
    ..Developing an easy to use and low cost direct 3D scanning of the ear canal technology is the "holy grail" of digital hearing aid industry and is urgently needed to improve shell ..
  6. Ear Canal Optical Coherence Tomography System
    PAUL SHNITSER; Fiscal Year: 2013
    ..Physical Optics Corporation (POC) proposes the development of a new Ear Canal Optical Coherent Tomography (ECOCT) system to obtain the shape of the individual ear canal and the corresponding ..
  7. Exploring otoacoustic emissions with intracochlear pressure and motion measuremen
    Wei Dong; Fiscal Year: 2013
    ..OAEs are sounds generated within the cochlea and being detected in the ear canal, carrying the information about the mechanisms that generate and shape them, thus providing a noninvasive view ..
  8. Computer-based holography and middle-ear function
    John J Rosowski; Fiscal Year: 2013
    ..ear canals test a second theory by determining whether the location and orientation of the TM within the ear canal contribute to sound- induced surface waves on the TM and delays in ossicular motion...
  9. Backward and Forward Driven Eardrum Motions
    Jeffrey Tao Cheng; Fiscal Year: 2013
    ..transformation of cochlea generated sound to clinically valuable oto-acoustic emissions (OAEs) measured in the ear canal. However, our knowledge of the workings of the TM in both forward and reverse sound transmissions is limited...
  10. Wide-bandwidth open canal hearing aid for better multitalker speech understanding
    Sunil Puria; Fiscal Year: 2009
    ..The third is to place a wide-bandwidth microphone in the ear canal to capture the pinna diffraction cues, in a similar manner to the functioning of a normal ear...
  11. Auditory steady-state responses--rate effects across adult lifespan
    ABREENA IRIS TLUMAK; Fiscal Year: 2012
    ..Electrical responses produced by the auditory system will be measured from a small microphone in the ear canal and from small disks located in a Lycra cap on the head...
  12. HUMAN MIDDLE EAR--FORWARD AND REVERSE SOUND TRANSMISSION
    Sunil Puria; Fiscal Year: 2002
    ..originates in the cochlea, travels through the middle ear and can be measured as otoacoustic emissions in the ear canal. The accessibility of otoacoustic emissions to measurements makes them a potentially useful tool for objective ..
  13. Effects of aging on evoked otoacoustic emissions in the common marmoset
    Rama Ratnam; Fiscal Year: 2010
    ..This non-invasive technique, which measures sounds in the ear canal originating in the micromechanical activity of the basilar membrane, provides useful information on the health ..
  14. Ultrasound Characterization of Otitis Media
    Arne Voie; Fiscal Year: 2004
    ..This project will develop an instrument and transducer which can be inserted into the external ear canal and deliver a low-intensity burst of ultrasound to the tympanic membrane and the middle ear space...
  15. OTOREFLECTANCE ASSESSMENT OF MIDDLE-EAR FUNCTIONING
    DOUGLAS KEEFE; Fiscal Year: 2003
    ..OR) is a new class of hearing test instruments utilizing acoustic signals presented and recorded in the ear canal. OR instruments address limitations in existing screening and diagnostic instruments in such areas as: (1) ..
  16. Wide-bandwidth open canal hearing aid for better multitalker speech understanding
    Sunil Puria; Fiscal Year: 2006
    ..The third key concept is to place a wide-bandwidth microphone in the ear canal to capture the pinna diffraction cues similar to the way the normal ear functions...
  17. ULTRASONIC DETECTION OF MIDDLE EAR EFFUSION
    Jan Lewandowski; Fiscal Year: 2004
    ..The probe will allow for fast acquisition of ultrasonic scans from the ear canal and middle ear cavity...
  18. An Ear Device Enabling Hands Free Wheelchair Control
    Ravi Vaidyanathan; Fiscal Year: 2006
    ..Commercial partnerships with wheelchair control component manufacturers are already in place to insure this unique technology reaches market ..
  19. Energy Reflectance Tympanometry in Infants
    Chris Sanford; Fiscal Year: 2006
    ..It is hypothesized that pressure changes in the external ear canal affect the acoustic responses from the infant ear differently than the adult ear...
  20. DELIVERY OF SOUND DEEPER INTO THE DYNAMIC HUMAN EAR
    ROBERT OLIVEIRA; Fiscal Year: 1992
    ..The proposed work would define groundwork for a thorough understanding of the human ear canal and the design of a safe and effective deeper insertion earpiece that has minimum contact with the dynamic ..
  21. SPECTRAL CUES UNDERLYING LOCALIZATION OF SOUND IN SPACE
    Robert Butler; Fiscal Year: 1990
    ..Head related transfer functions, measured by a miniature microphone placed in the external ear canal, will provide the spectral data for the determination of covert peaks...
  22. LOCAL EFFERENT ACTIVATION THROUGH INFERIOR COLLICULUS
    David Dolan; Fiscal Year: 2004
    ..The cochlear whole-nerve action potential and the ear canal otoacoustic emission responses will be measured with and without IC stimulation...
  23. Real time hearing protector insertion loss study
    Steven Guffey; Fiscal Year: 2007
    ..Ear" model of insertion loss (IL) for hearing protectors based on minute by minute measurements taken in the ear canal or in a muff and at the crest of the shoulder...
  24. Hearing in Noise with Improved Noise Reduction Foam
    VASANT KOLPE; Fiscal Year: 2006
    ..that send desired sound through a lumen in a passive noise reducing viscoelastic foam tip that resides in the ear canal providing insertion gain. The result is a significant increase in signal-to-noise ratio...
  25. ELECTRICALLY EVOKED OTOACOUSTIC EMISSION
    Tianying Ren; Fiscal Year: 2001
    ..Our working hypothesis is that the ear canal-measured EEOAE is a vector summation of the multicomponents of the electrically evoked mechanical response in ..
  26. POSTNATAL AUDITORY FUNCTION DEVELOPMENT
    GEORGE STRAIN; Fiscal Year: 1991
    ..will be introduced through stimulus delivery tubing implanted on the tympanic membrane to bypass the sealed ear canal. Responses will be collected daily from beagle puppies to document normal developmental patterns...
  27. COMPACT, FIBER OPTIC HOLOGRAHIC PROBE FOR OTOLARYNGOLOGY
    James Castracane; Fiscal Year: 1991
    DESCRIPTION: The probe, to be designed for insertion in the external ear canal, would consist of two-single mode fibers, conducting light from a laser, a bundle of glass fibers carrying the interference image from a semi-transparent ..
  28. Finite element analysis of middle ear acoustics
    JAMES TUCK LEE; Fiscal Year: 2005
    ..This will consist of acoustic models of the ear canal and middle ear cavities, and an orthotropic structural model of the eardrum...
  29. COMPUTERIZED DISTORTION-PRODUCT HEARING SCREENER
    Robert Bruce; Fiscal Year: 1992
    ..based on a new class of auditory response termed otacoustic emissions that can be objectively measured in the ear canal of all normally hearing persons...
  30. INEXPENSIVE HEARING DEVICE BASED ON EAR CANAL GEOMETRY
    ROBERT OLIVEIRA; Fiscal Year: 2003
    ..PROPOSED COMMERCIAL APPLICATION: In excess of 12 million people in the U.S. have self-identified mild hearing loss, and would potentially benefit from an inexpensive starter hearing device. ..
  31. A Wide Band Reflectance - DPOAE (WR-DP) Screener
    PATRICIA JENG; Fiscal Year: 2006
    ..obtained by the reflectance measurement, is to allow for a direct estimate of the signal intensity level in the ear canal so as to mitigate the standing wave problem in the audiometric measurement...
  32. ACOUSTICAL POWER FLOW AS AN AUDIOLOGICAL TOOL
    PATRICIA JENG; Fiscal Year: 2001
    ..magnitude and phase) and normalized acoustic impedance (both resistive and reactive components) of the human ear canal over a frequency range from 200 to 8,000 Hz...
  33. AUDITORY DEVELOPMENT IN EARLY-AMPLIFIED CHILDREN
    Yvonne Sininger; Fiscal Year: 2004
    ..newborns using ABIR against standard behavioral audiometric thresholds obtained after 6 months of age, and to determine the extent of developmentally related changes in ear canal volume and resonance on hearing aid prescriptive targets.
  34. Clinical Assessment of Cochlear Transducer Function Usi*
    Lin Bian; Fiscal Year: 2005
    ..The transduction processes in the hair cells produce sound or acoustic emissions that are measurable in the ear canal. Evoked by two-tone stimuli, the distortion product otoacoustic emissions (DPOAEs) are generated from the ..
  35. Role of vestibular cortex in SCD subjects using fMRI
    Galen Kaufman; Fiscal Year: 2004
    ..Pre-training of eligible SCD subjects will utilize EEG recordings to confirm that our ear canal pressure or tone device both creates perceptual tilts and cortical activity...
  36. COMPUTERIZED DISTORTION-PRODUCT HEARING SCREENER
    Robert Bruce; Fiscal Year: 1990
    ..a new class of auditory responses termed otoacoustic emissions that can be objectively measured in the ear canal of all normally hearing individuals...
  37. Middle-ear assessment via reflectance measurements
    Susan Voss; Fiscal Year: 2005
    ..This work will both strengthen the research environment at Smith College and provide substantial research experiences for undergraduate students. ..
  38. OTOREFLECTANCE ASSESSMENT OF MIDDLE-EAR FUNCTIONING
    DOUGLAS KEEFE; Fiscal Year: 2006
    ..OR) is a new class of hearing-test instruments utilizing acoustic signals presented and recorded in the ear canal. OR instruments address the following limitations in existing instruments to screen and diagnose middle-ear ..
  39. Ear Biomechanics for Restoration of Hearing
    RONG GAN; Fiscal Year: 2009
    ..structure and mechanical properties of human ear affect acoustic-mechanical transmission through the external ear canal and middle ear to inner ear (or cochlea) in normal, pathological and reconstructed ears...
  40. Exploring otoacoustic emissions with intracochlear pressure measurements
    Wei Dong; Fiscal Year: 2008
    ..and a sensitive microphone system as the receiver to calibrate sound and measure the sound pressure in the ear canal. Direct and simultaneous measurements of the intracochlear pressure and ear canal pressures to sound stimuli ..
  41. Low Optical Coherence Interferometry for the Cochlea
    Alfred Nuttall; Fiscal Year: 2007
    ..abstract_text> ..
  42. Mechanics of Hearing Meeting 2005
    Alfred Nuttall; Fiscal Year: 2005
    ..In addition, attendees will receive information and experience in how to be proactive in the area of public education for hearing science. ..
  43. ACOUSTIC RESPONSES OF THE HUMAN COCHLEA AND MIDDLE EAR
    DOUGLAS KEEFE; Fiscal Year: 2008
    ..A subordinate goal is to relate acoustic responses measured non-invasively in the ear canal to cochlear and middle ear function...
  44. Group and Individual Differences in Audition
    Dennis McFadden; Fiscal Year: 2010
    ..If so, theory, diagnosis, treatment, and nosology for ADHD could be affected. ..
  45. Studies of cochlear mechanics: otoacoustic emissions
    Tianying Ren; Fiscal Year: 2005
    ..These inner ear-generated sounds, i.e., otoacoustic emissions, can be measured using a tiny microphone in the ear canal. Among the various otoacoustic emissions, the cubic distortion product otoacoustic emission (DPOAE) has been ..
  46. Development of a laser holography otoscope for diagnosis in the clinic
    John J Rosowski; Fiscal Year: 2010
    ..abstract_text> ..
  47. OAE Group Delay Measurements Using Tone-Burst Stimuli
    ROBERT WITHNELL; Fiscal Year: 2004
    ....
  48. DPOAE PHENOTYPING OF COCHLEAR FUNCTION
    Glen Martin; Fiscal Year: 2001
    ..The resulting data will be made widely available on the internet in the form of databases and the relevant training manuals. ..
  49. Investigation of DPOAE components in time and frequency
    Sumitrajit Dhar; Fiscal Year: 2006
    ..A model in which DPOAEs recorded in the ear canal are represented as a composite signal comprised of contributions from several components has been proposed by ..
  50. The World Congress on Chromosome Abnormalities
    Jannine Cody; Fiscal Year: 2004
    ..This application seeks funding for the Scientific Sessions of the World Congress on Chromosome Abnormalities, to be held in June of 2004 in San Antonio, Texas. ..
  51. PHYSIOLOGICAL BASES OF OTOTRAUMATIC INSULT
    Glen Martin; Fiscal Year: 2005
    ..The third hypothesis tests whether susceptibility to hearing loss or the prevention from it is associated with specific molecules in the cochlea. ..
  52. Parkinsonian mouse model: impaired respiratory enzymes
    Lars Olson; Fiscal Year: 2005
    ..2. To determine if respiratory chain dysfunction in DA neurons will induce a PD like phenotype and validate this approach as a new and unique model of Parkinson's Disease. ..
  53. Implications of OAE Cochlear Source Contribution
    Tiffany Johnson; Fiscal Year: 2006
    ..4) The role of fine structure (thought to arise from the complex summation of distortion- and reflection-source energy for DPOAEs) in prediction and diagnostic errors will be evaluated. ..
  54. The Effects of Resveratrol on Presbyacusis
    Michael Seidman; Fiscal Year: 2004
    ..Furthermore, these data will provide novel strategies to impart greater wellness in the elderly population and perhaps have a positive effect on health care expenses. ..
  55. COCHLEAR MECHANISMS OF FREQUENCY MICROSTRUCTURE
    LISA STOVER; Fiscal Year: 2002
    ....
  56. VESTIBULAR AFFERENT ACTIVITY AFTER CANAL PLUGGING
    Sergei Yakushin; Fiscal Year: 2002
    ..This work should lead to a clearer understanding of how lesions, such as plugging and nerve section, affect the sensory processing of head movements and how the central vestibular system adapts to these types of lesions. ..
  57. Aged Middle Ear
    MICHAELANNE GRATTON; Fiscal Year: 2002
    ..These experiments may reveal a heretofore unrecognized component of the hearing loss seen in the elderly population. ..
  58. OCULOMOTOR SYSTEM AND BODY POSTURAL MECHANISMS
    Bernard Cohen; Fiscal Year: 2009
    ..abstract_text> ..
  59. Inhibition in Binaural Processing
    George Spirou; Fiscal Year: 2006
    ..for hearing preservation following damage to the auditory system, such as through design or activation of cochlear nucleus prostheses, and for the design of speech recognition systems used in complex acoustic environments ..
  60. COBRE IN SENSORY NEUROSCIENCE
    George Spirou; Fiscal Year: 2009
    ..To enhance and ?accelerate the pace of translational research projects among the clinical and basic science faculty at WVU. ..