radiographic image enhancement

Summary

Summary: Improvement in the quality of an x-ray image by use of an intensifying screen, tube, or filter and by optimum exposure techniques. Digital processing methods are often employed.

Top Publications

  1. ncbi Chest computed tomography using iterative reconstruction vs filtered back projection (Part 2): image quality of low-dose CT examinations in 80 patients
    Francois Pontana
    Department of Thoracic Imaging, Hospital Calmette EA 2694, University Lille Nord de France, F 59000, Lille, France
    Eur Radiol 21:636-43. 2011
  2. ncbi Initial performance characterization of a clinical noise-suppressing reconstruction algorithm for MDCT
    Peter B Noël
    Department of Radiology, Technische Universitat Munchen, Klinikum rechts der Isar, Munich, Germany
    AJR Am J Roentgenol 197:1404-9. 2011
  3. ncbi Radiation dose of non-enhanced chest CT can be reduced 40% by using iterative reconstruction in image space
    X H Hu
    Second Affiliated Hospital of Zhejiang University College of Medicine, Hangzhou, Zhejiang Province, China
    Clin Radiol 66:1023-9. 2011
  4. ncbi Reduction of radiation exposure and improvement of image quality with BMI-adapted prospective cardiac computed tomography and iterative reconstruction
    Waldemar Hosch
    University of Heidelberg, Department of Diagnostic and Interventional Radiology, Heidelberg, Germany
    Eur J Radiol 81:3568-76. 2012
  5. pmc Mammographic density. Measurement of mammographic density
    Martin J Yaffe
    Imaging Research Program, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, Ontario, Canada
    Breast Cancer Res 10:209. 2008
  6. ncbi Phase-contrast X-ray imaging of breast
    Jani Keyriläinen
    Department of Physics, HUCH Cancer Center, Helsinki University Central Hospital HUCH, Helsinki, Finland
    Acta Radiol 51:866-84. 2010
  7. ncbi Digital breast tomosynthesis: observer performance study
    David Gur
    Radiology Imaging Research, Department of Radiology, University of Pittsburgh, 3362 Fifth Ave, Rm 223 FARP Bldg, Pittsburgh, PA 15213, USA
    AJR Am J Roentgenol 193:586-91. 2009
  8. ncbi Retrospective gating vs. prospective triggering for noninvasive coronary angiography: Assessment of image quality and radiation dose using a 256-slice CT scanner with 270 ms gantry rotation
    Wei Yip Law
    Department of Radiology, Shin Kong Wu Ho Su Memorial Hospital, Taipei, Taiwan, ROC
    Acad Radiol 18:31-9. 2011
  9. ncbi High-pitch spiral computed tomography: effect on image quality and radiation dose in pediatric chest computed tomography
    Michael M Lell
    Department of Radiology, University of Erlangen, Erlangen, Germany
    Invest Radiol 46:116-23. 2011
  10. ncbi Perfusion CT of the brain using 40-mm-wide detector and toggling table technique for initial imaging of acute stroke
    Sung Won Youn
    Department of Radiology, Seoul National University College of Medicine, Seoul National University Bundang Hospital, Seongnam si 463 707, Korea
    AJR Am J Roentgenol 191:W120-6. 2008

Detail Information

Publications359 found, 100 shown here

  1. ncbi Chest computed tomography using iterative reconstruction vs filtered back projection (Part 2): image quality of low-dose CT examinations in 80 patients
    Francois Pontana
    Department of Thoracic Imaging, Hospital Calmette EA 2694, University Lille Nord de France, F 59000, Lille, France
    Eur Radiol 21:636-43. 2011
    ..To evaluate the image quality of an iterative reconstruction algorithm (IRIS) in low-dose chest CT in comparison with standard-dose filtered back projection (FBP) CT...
  2. ncbi Initial performance characterization of a clinical noise-suppressing reconstruction algorithm for MDCT
    Peter B Noël
    Department of Radiology, Technische Universitat Munchen, Klinikum rechts der Isar, Munich, Germany
    AJR Am J Roentgenol 197:1404-9. 2011
    ..In this article, we present the initial performance evaluation of such a reconstruction algorithm (iDose, Philips Healthcare)...
  3. ncbi Radiation dose of non-enhanced chest CT can be reduced 40% by using iterative reconstruction in image space
    X H Hu
    Second Affiliated Hospital of Zhejiang University College of Medicine, Hangzhou, Zhejiang Province, China
    Clin Radiol 66:1023-9. 2011
    ..To evaluate the image quality and dose reduction capability of non-enhanced chest computed tomography (CT) examinations using iterative reconstruction in image space (IRIS)...
  4. ncbi Reduction of radiation exposure and improvement of image quality with BMI-adapted prospective cardiac computed tomography and iterative reconstruction
    Waldemar Hosch
    University of Heidelberg, Department of Diagnostic and Interventional Radiology, Heidelberg, Germany
    Eur J Radiol 81:3568-76. 2012
    ....
  5. pmc Mammographic density. Measurement of mammographic density
    Martin J Yaffe
    Imaging Research Program, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, Ontario, Canada
    Breast Cancer Res 10:209. 2008
    ..In this article, the techniques for measurement of density are reviewed and some consideration is given to their strengths and limitations...
  6. ncbi Phase-contrast X-ray imaging of breast
    Jani Keyriläinen
    Department of Physics, HUCH Cancer Center, Helsinki University Central Hospital HUCH, Helsinki, Finland
    Acta Radiol 51:866-84. 2010
    ..Several developments that are under way are described here...
  7. ncbi Digital breast tomosynthesis: observer performance study
    David Gur
    Radiology Imaging Research, Department of Radiology, University of Pittsburgh, 3362 Fifth Ave, Rm 223 FARP Bldg, Pittsburgh, PA 15213, USA
    AJR Am J Roentgenol 193:586-91. 2009
    ..The purpose of this study was to compare in a retrospective observer study the diagnostic performance of full-field digital mammography (FFDM) with that of digital breast tomosynthesis...
  8. ncbi Retrospective gating vs. prospective triggering for noninvasive coronary angiography: Assessment of image quality and radiation dose using a 256-slice CT scanner with 270 ms gantry rotation
    Wei Yip Law
    Department of Radiology, Shin Kong Wu Ho Su Memorial Hospital, Taipei, Taiwan, ROC
    Acad Radiol 18:31-9. 2011
    ....
  9. ncbi High-pitch spiral computed tomography: effect on image quality and radiation dose in pediatric chest computed tomography
    Michael M Lell
    Department of Radiology, University of Erlangen, Erlangen, Germany
    Invest Radiol 46:116-23. 2011
    ..We evaluated a new, subsecond high-pitch scan mode (HPM), which obviates the need of sedation and to hold the breath...
  10. ncbi Perfusion CT of the brain using 40-mm-wide detector and toggling table technique for initial imaging of acute stroke
    Sung Won Youn
    Department of Radiology, Seoul National University College of Medicine, Seoul National University Bundang Hospital, Seongnam si 463 707, Korea
    AJR Am J Roentgenol 191:W120-6. 2008
    ..The purpose of this study was to evaluate the usefulness of perfusion CT with extended coverage in the z-axis for the assessment of acute stroke in an emergent clinical setting...
  11. ncbi AAPM/RSNA physics tutorial for residents: digital mammography: an overview
    Mahadevappa Mahesh
    The Russell H Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, JHOC Suite 4235, 601 N Caroline St, Baltimore, MD 21287 0856, USA
    Radiographics 24:1747-60. 2004
    ..These advantages and the rapidly occurring technologic developments will help establish FFDM as a mainstay of breast evaluation...
  12. ncbi Abdominal CT: comparison of low-dose CT with adaptive statistical iterative reconstruction and routine-dose CT with filtered back projection in 53 patients
    Yoshiko Sagara
    Department of Radiology, Oita University Faculty of Medicine, Idaigaoka Hasama machi, Yufu Shi, Oita, Japan
    AJR Am J Roentgenol 195:713-9. 2010
    ....
  13. ncbi A study on several machine-learning methods for classification of malignant and benign clustered microcalcifications
    Liyang Wei
    Department of Biomedical Engineering, Illinois Institute of Technology, Chicago, IL 60616, USA
    IEEE Trans Med Imaging 24:371-80. 2005
    ..e., SVM, KFD, and RVM) yielded the best performance (Az = 0.85, SVM), significantly outperforming a well-established, clinically-proven CADx approach that is based on neural network (Az = 0.80)...
  14. ncbi The role of ECG-gated MDCT in the evaluation of aortic and mitral mechanical valves: initial experience
    Eli Konen
    Department of Diagnostic Imaging, Sheba Medical Center, Tel Hashomer, Ramat Gan 52621, Israel
    AJR Am J Roentgenol 191:26-31. 2008
    ..The objective of our study was to evaluate the role of ECG-gated MDCT in the functional evaluation of mechanical prosthetic aortic and mitral valves...
  15. ncbi Digital x-ray tomosynthesis: current state of the art and clinical potential
    James T Dobbins
    Department of Radiology, Duke University Medical Center, Durham, NC 27710, USA
    Phys Med Biol 48:R65-106. 2003
    ..Approaches for optimizing the tomosynthesis image are given. Applications of tomosynthesis to various clinical tasks, including angiography, chest imaging, mammography, dental imaging and orthopaedic imaging, are also described...
  16. ncbi Optimization of dual-energy imaging systems using generalized NEQ and imaging task
    S Richard
    Department of Medical Biophysics, University of Toronto, Ontario, M5G 2M9, Canada
    Med Phys 34:127-39. 2007
    ..Experimental and theoretical analysis of GNEQ and task-based detectability index provides a fundamental understanding of the factors governing DE imaging performance and offers a framework for system design and optimization...
  17. ncbi Full-field digital versus screen-film mammography: comparison within the UK breast screening program and systematic review of published data
    Sarah Vinnicombe
    Breast Unit, St Bartholomew s Hospital, Barts and The London NHS Trust, West Smithfield, London EC1A7BE, England
    Radiology 251:347-58. 2009
    ....
  18. ncbi Digital breast tomosynthesis versus digital mammography: a clinical performance study
    Gisella Gennaro
    Department of Radiology, Venetian Oncological Institute IOV, IRCCS, Padua, Italy
    Eur Radiol 20:1545-53. 2010
    ..To compare the clinical performance of digital breast tomosynthesis (DBT) with that of full-field digital mammography (FFDM) in a diagnostic population...
  19. ncbi Breast tomosynthesis in clinical practice: initial results
    Hendrik J Teertstra
    Division of Radiology, The Netherlands Cancer Institute Antoni van Leeuwenhoek Hospital, Amsterdam, The Netherlands
    Eur Radiol 20:16-24. 2010
    ..Additional lesions detected by tomosynthesis, however, are also likely to be detected by other techniques used in the clinical work-up of these patients...
  20. ncbi Accuracy of coronary artery stenosis detection with CT versus conventional coronary angiography compared with composite findings from both tests as an enhanced reference standard
    J Matthias Kerl
    Department of Radiology and Radiological Science, Medical University of South Carolina, 25 Courtenay Drive, Charleston, SC 29401, USA
    Eur Radiol 21:1895-903. 2011
    ..To prospectively compare the accuracy of coronary CT angiography (CCTA) and conventional coronary angiography (CCA) for stenosis detection using composite findings from both tests as an enhanced reference standard...
  21. pmc Comparison between different cost devices for digital capture of X-ray films: an image characteristics detection approach
    Antonio José Salazar
    Department of Electrical and Electronic Engineering, University of Los Andes, Bogota, Colombia
    J Digit Imaging 25:91-100. 2012
    ..All three devices are appropriate solutions, but a digital camera requires more operator training and more settings...
  22. ncbi Simulation of dose reduction in tomosynthesis
    Angelica Svalkvist
    Department of Radiation Physics, University of Gothenburg, SE 413 45 Gothenburg, Sweden
    Med Phys 37:258-69. 2010
    ..The aim of the present work was to develop a method of simulating dose reduction for digital radiographic systems, suitable for tomosynthesis...
  23. ncbi The optimal dose reduction level using iterative reconstruction with prospective ECG-triggered coronary CTA using 256-slice MDCT
    Yang Hou
    Department of Radiology, Shengjing Hospital of China Medical University, Shenyang 110004, China
    Eur J Radiol 81:3905-11. 2012
    ....
  24. ncbi Multi--detector row helical CT of the pancreas: effect of contrast-enhanced multiphasic imaging on enhancement of the pancreas, peripancreatic vasculature, and pancreatic adenocarcinoma
    N J McNulty
    Department of Radiology, University of Michigan Hospitals, 1500 E Medical Center Dr, Box 30, Ann Arbor, MI 48109-0030, USA
    Radiology 220:97-102. 2001
    ..AP imaging can be reserved for patients in whom CT angiography is required...
  25. ncbi Metal artifact reduction in CT using tissue-class modeling and adaptive prefiltering
    Matthieu Bal
    Philips Research, Aachen, Germany
    Med Phys 33:2852-9. 2006
    ..Furthermore, the novel approach improves detectability of organ contours. This can be of great relevance, for instance, in radiation therapy planning, where images affected by metal artifacts may lead to suboptimal treatment plans...
  26. ncbi Pulmonary nodules: effect of adaptive statistical iterative reconstruction (ASIR) technique on performance of a computer-aided detection (CAD) system-comparison of performance between different-dose CT scans
    Masahiro Yanagawa
    Department of Radiology, Osaka University Graduate School of Medicine, 2 2 Yamadaoka, Suita City, Osaka 565 0871, Japan
    Eur J Radiol 81:2877-86. 2012
    ..To evaluate the effects of ASIR on CAD system of pulmonary nodules using clinical routine-dose CT and lower-dose CT...
  27. ncbi Adaptive statistical iterative reconstruction technique for pulmonary CT: image quality of the cadaveric lung on standard- and reduced-dose CT
    Masahiro Yanagawa
    Department of Radiology, Osaka University Graduate School of Medicine, Suita City, Osaka, 565 0871, Japan
    Acad Radiol 17:1259-66. 2010
    ..To evaluate thin-section computed tomography (CT) images of the lung reconstructed using adaptive statistical iterative reconstruction (ASIR) on standard- and reduced-dose CT...
  28. ncbi Breast cancer screening results 5 years after introduction of digital mammography in a population-based screening program
    Nico Karssemeijer
    Department of Radiology, Radboud University Nijmegen Medical Centre, Geert Grootteplein 10, 6500 HB Nijmegen, The Netherlands
    Radiology 253:353-8. 2009
    ..To compare full-field digital mammography (FFDM) using computer-aided diagnosis (CAD) with screen-film mammography (SFM) in a population-based breast cancer screening program for initial and subsequent screening examinations...
  29. ncbi Intensity distribution and impact of scatter for dual-source CT
    Yiannis Kyriakou
    Institute of Medical Physics, University of Erlangen Nurnberg, Germany
    Phys Med Biol 52:6969-89. 2007
    ..The magnitude of scatter is not negligible for DSCT systems and dedicated corrections are necessary for the assurance of unimpaired image quality...
  30. ncbi Chest computed tomography using iterative reconstruction vs filtered back projection (Part 1): Evaluation of image noise reduction in 32 patients
    Francois Pontana
    Department of Thoracic Imaging Hospital Calmette EA 2694, Univ Lille Nord de France, 59000, Lille, France
    Eur Radiol 21:627-35. 2011
    ..To assess noise reduction achievable with an iterative reconstruction algorithm...
  31. pmc Comparison of color LCD and medical-grade monochrome LCD displays in diagnostic radiology
    Håkan Geijer
    Department of Radiology, Orebro University Hospital, SE 701 85, Orebro, Sweden
    J Digit Imaging 20:114-21. 2007
    ..The VGA scores were -0.28 for the color and -0.25 for the monochrome display (p = 0.24; NS). It thus seems possible to use color displays in diagnostic radiology provided that grayscale adjustment is used...
  32. ncbi Prospective ECG-triggered axial CT at 140-kV tube voltage improves coronary in-stent restenosis visibility at a lower radiation dose compared with conventional retrospective ECG-gated helical CT
    Jun Horiguchi
    Department of Clinical Radiology, Hiroshima University Hospital, 1 2 3, Kasumi cho, Minami Ku, Hiroshima, 734 8551, Japan
    Eur Radiol 19:2363-72. 2009
    ..4-18.8 mSv), 1.9; and (d) 120-kV retrospective (11.0-13.4 mSv), 1.9. Thus, 140-kV prospective ECG-triggered CTA improves coronary in-stent restenosis visibility at a lower radiation dose compared with retrospective ECG-gated CTA...
  33. ncbi A Monte Carlo estimation of effective dose in chest tomosynthesis
    John M Sabol
    GE Healthcare, Global Diagnostic X Ray, Mailstop W 702, 3000 North Grandview Boulevard, Waukesha, Wisconsin 53188, USA
    Med Phys 36:5480-7. 2009
    ..In this article, the effective dose to the patient of chest tomosynthesis is calculated and compared to a standard radiographic examination and to values published for thoracic CT...
  34. pmc Consequences of digital mammography in population-based breast cancer screening: initial changes and long-term impact on referral rates
    Adriana M J Bluekens
    National Expert and Training Centre for Breast Cancer Screening, P O Box 6873, 6503 GJ, Nijmegen, The Netherlands
    Eur Radiol 20:2067-73. 2010
    ..To investigate the referral pattern after the transition to full-field digital mammography (FFDM) in a population-based breast cancer screening programme...
  35. pmc Streaking artifacts reduction in four-dimensional cone-beam computed tomography
    Shuai Leng
    Department of Medical Physics, University of Wisconsin Madison, Madison, Wisconsin 53792, USA
    Med Phys 35:4649-59. 2008
    ..At the same time, a temporal gating window as narrow as 100 ms was utilized. Compared to the conventional 4D CBCT reconstruction, streaking artifacts were reduced by 60% to 70%...
  36. ncbi Effect of hybrid iterative reconstruction technique on quantitative and qualitative image analysis at 256-slice prospective gating cardiac CT
    Daisuke Utsunomiya
    Department of Cardiology, Cardiovascular Research Institute, Washington Hospital Center, 110 Irving Street, Washington DC, NW 20010, USA
    Eur Radiol 22:1287-94. 2012
    ..To evaluate the effect of hybrid iterative reconstruction on qualitative and quantitative parameters at 256-slice cardiac CT...
  37. ncbi Statistical reconstruction for x-ray computed tomography using energy-integrating detectors
    Giovanni M Lasio
    Division of Medical Physics, Department of Radiation Oncology, Virginia Commonwealth University, Richmond, VA 23298, USA
    Phys Med Biol 52:2247-66. 2007
    ....
  38. ncbi Advantages of extended brain perfusion computed tomography: 9.6 cm coverage with time resolved computed tomography-angiography in comparison to standard stroke-computed tomography
    Dominik Morhard
    Institute of Clinical Radiology, University of Munich Campus Grosshadern, Munich, Germany
    Invest Radiol 45:363-9. 2010
    ..The purpose of this study was to compare the results of simulated standard PCT and extended PCT with 4d-CTA...
  39. ncbi Crush extremity fractures associated with the 2008 Sichuan earthquake: anatomic sites, numbers and statuses evaluated with digital radiography and multidetector computed tomography
    Tian Wu Chen
    Department of Radiology, West China Hospital of Sichuan University, Sichuan, China
    Skeletal Radiol 38:1089-97. 2009
    ..To investigate features of crush extremity fractures associated with massive earthquake on digital radiography (DR) and multidetector computed tomography (MDCT)...
  40. ncbi Development of high-resolution 4D in vivo-CT for visualization of cardiac and respiratory deformations of small animals
    Toshihiro Sera
    Computational Biomechanics Unit, RIKEN, 2 1 Hirosawa, Wako, Saitama, Japan
    Phys Med Biol 53:4285-301. 2008
    ..This high-resolution imaging tool may be very useful for the development of novel drugs in murine models, in addition to its use in the study of cardiovascular and respiratory physiology...
  41. ncbi Perfusion CT in acute ischemic stroke: a qualitative and quantitative comparison of deconvolution and maximum slope approach
    B Abels
    Department of Radiology, University of Erlangen Nuremberg, Maximiliansplatz 1, Erlangen, Germany
    AJNR Am J Neuroradiol 31:1690-8. 2010
    ..We performed a qualitative and quantitative comparison of DC and MS by using identical source datasets and preprocessing parameters...
  42. pmc A quantitative description of the percentage of breast density measurement using full-field digital mammography
    John J Heine
    H Lee Moffitt Cancer Center and Research Institute, Cancer Prevention and Control Division, Tampa, FL 33612, USA
    Acad Radiol 18:556-64. 2011
    ....
  43. pmc Displacement and velocity of the coronary arteries: cardiac and respiratory motion
    Guy Shechter
    IEEE Trans Med Imaging 25:369-75. 2006
    ..Spatial variation in respiratory displacement and velocity of the coronary arteries indicates that the breathing motion of the heart is more complex than a 3-D translation...
  44. ncbi A volumetric method for estimation of breast density on digitized screen-film mammograms
    Olga Pawluczyk
    Imaging Bioengineering Research, Sunnybrook and Women s College Health Sciences Centre, Department of Medical Biophysics, 2075 Bayview Avenue, Toronto, Ontario M4N 3M5, Canada
    Med Phys 30:352-64. 2003
    ..Clinical studies are ongoing to evaluate whether VBD can be a better indicator for breast cancer risk...
  45. ncbi A comparison of reconstruction algorithms for breast tomosynthesis
    Tao Wu
    Massachusetts General Hospital, Boston, Massachusetts 02114, USA
    Med Phys 31:2636-47. 2004
    ....
  46. ncbi Quantification of coronary artery lumen volume by digital angiography: in vivo validation
    S Molloi
    Department of Radiological Sciences, University of California-Irvine, University of California-San Diego, USA
    Circulation 104:2351-7. 2001
    ....
  47. ncbi Population-based mammography screening: comparison of screen-film and full-field digital mammography with soft-copy reading--Oslo I study
    Per Skaane
    Department of Radiology, Breast Imaging Center, Ullevaal University Hospital, Kirkeveien 166, N 0407 Oslo, Norway
    Radiology 229:877-84. 2003
    ..To compare screen-film and full-field digital mammography with soft-copy reading in a population-based screening program...
  48. ncbi What is cone-beam CT and how does it work?
    William C Scarfe
    Department of Surgical Hospital Dentistry, University of Louisville School of Dentistry, 501 South Preston Street, Louisville, KY 40292, USA
    Dent Clin North Am 52:707-30, v. 2008
    ..Future enhancements most likely will be directed toward reducing scan time; providing multimodal imaging; improving image fidelity, including soft tissue contrast; and incorporating task-specific protocols to minimize patient dose...
  49. ncbi Digital mammography
    John M Lewin
    Diversified Radiology of Colorado, P C, 938 Bannock Street, Suite 300, Denver, CO 80204, USA
    Radiol Clin North Am 42:871-84, vi. 2004
    ....
  50. ncbi Clinical implementation of x-ray phase-contrast imaging: theoretical foundations and design considerations
    Xizeng Wu
    Department of Radiology, University of Alabama at Birmingham, Birmingham, Alabama 35233, USA
    Med Phys 30:2169-79. 2003
    ..The results of phantom experiments were also presented which validated the theoretical analysis and computer simulations...
  51. ncbi X-ray refraction-enhanced imaging and a method for phase retrieval for a simple object
    Yoshio Suzuki
    SPring 8 JASRI, Mikazuki, Hyogo 679 5198, Japan
    J Synchrotron Radiat 9:160-5. 2002
    ..The problems of thick and complicated objects are also discussed...
  52. ncbi Diagnostic performance of digital versus film mammography for breast-cancer screening
    Etta D Pisano
    Department of Radiology, the Biomedical Research Imaging Center, and the Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, USA
    N Engl J Med 353:1773-83. 2005
    ..Film mammography has limited sensitivity for the detection of breast cancer in women with radiographically dense breasts. We assessed whether the use of digital mammography would avoid some of these limitations...
  53. ncbi Automated pancreas segmentation from three-dimensional contrast-enhanced computed tomography
    Akinobu Shimizu
    Tokyo University of Agriculture and Technology, Naka cho 2 24 16, Koganei, Tokyo 184 8588, Japan
    Int J Comput Assist Radiol Surg 5:85-98. 2010
    ..We propose an automated pancreas segmentation algorithm from contrast-enhanced multiphase computed tomography (CT) and verify its effectiveness in segmentation...
  54. ncbi A review of methods of clinical image quality evaluation in mammography
    YanPeng Li
    Discipline of Medical Radiation Sciences, Faculty of Health Sciences, University of Sydney, PO Box 170, Lidcombe, NSW 1825, Australia
    Eur J Radiol 74:e122-31. 2010
    ..The purpose of this study was to review mammography clinical evaluation methods in research studies and their adherence to these systems...
  55. ncbi Pulmonary mycobacterial disease: diagnostic performance of low-dose digital tomosynthesis as compared with chest radiography
    Eun Young Kim
    Department of Radiology and Center for Imaging Science, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
    Radiology 257:269-77. 2010
    ..To compare the diagnostic performance of a low-radiation-dose digital tomosynthesis (DTS) technique with that of conventional radiography in the detection of lung lesions in patients with pulmonary mycobacterial disease...
  56. ncbi 4D-CT imaging of a volume influenced by respiratory motion on multi-slice CT
    Tinsu Pan
    GE Medical Systems, Waukesha, Wisconsin, USA
    Med Phys 31:333-40. 2004
    ..We have applied the scanning and registration methods on phantom, animal and patients, and initial results suggest the applicability of both the scanning and the registration methods...
  57. ncbi A review of automatic mass detection and segmentation in mammographic images
    Arnau Oliver
    Dept of Computer Architecture and Technology, University of Girona Ed P IV, Campus de Montilivi 17071, Girona, Spain
    Med Image Anal 14:87-110. 2010
    ..The results are given in terms of Receiver Operating Characteristic (ROC) and Free-response Receiver Operating Characteristic (FROC) analysis...
  58. ncbi Development and validation of segmentation and interpolation techniques in sinograms for metal artifact suppression in CT
    Wouter J H Veldkamp
    Department of Radiology, Leiden University Medical Center, Albinusdreef 2, 2333 ZA Leiden, The Netherlands
    Med Phys 37:620-8. 2010
    ..The purpose of this work was to design an efficient and accurate metal segmentation in raw data to achieve artifact suppression and to improve CT image quality for patients with metal hip or shoulder prostheses...
  59. ncbi Cone-beam CT (CB Throne) applied to dentomaxillofacial region
    Aya Yajima
    Department of Oral and Maxillofacial Radiology, Tokyo Dental College, Japan
    Bull Tokyo Dent Coll 47:133-41. 2006
    ..This article reports the characteristics of this system, and its diagnostic power for maxillofacial lesions and the pre-operative planning dental implants...
  60. ncbi Studies comparing screen-film mammography and full-field digital mammography in breast cancer screening: updated review
    P Skaane
    Department of Radiology, Ullevaal University Hospital, University of Oslo, Oslo, Norway
    Acta Radiol 50:3-14. 2009
    ..The aim of this article is to give an updated review of these studies, discuss the conflicting findings, and draw some conclusions from the results...
  61. pmc Chest tomosynthesis: technical principles and clinical update
    James T Dobbins
    Carl E Ravin Advanced Imaging Laboratories, Department of Radiology, Duke University Medical Center, Durham, NC 27705, USA
    Eur J Radiol 72:244-51. 2009
    ..Possible implementation strategies for use in clinical chest imaging are discussed...
  62. ncbi Phase contrast X-ray imaging of mice and rabbit lungs: a comparative study
    M J Kitchen
    School of Physics, Monash University, Victoria 3800, Australia
    Br J Radiol 78:1018-27. 2005
    ..The success of these methods in creating high quality images for rabbit lungs raises the possibility of improving human lung imaging using phase contrast techniques...
  63. ncbi Noise and resolution in images reconstructed with FBP and OSC algorithms for CT
    A Ziegler
    Philips Research Europe, Röntgenstrasse 24 26, 22315 Hamburg, Germany
    Med Phys 34:585-98. 2007
    ..The OSC method achieves a lower level of noise compared with FBP at the same resolution. The reconstruction with OSC can save a factor of up to nine of x-ray dose compared with FBP in the investigated range of noise levels...
  64. ncbi Air trapping: comparison of standard-dose and simulated low-dose thin-section CT techniques
    Alexander A Bankier
    Department of Radiology, Medical University of Vienna, Waehringer Guertel 18 20, A 1090 Vienna, Austria
    Radiology 242:898-906. 2007
    ..To prospectively investigate the effect of radiation dose reduction on the visual quantification of air trapping at expiratory thin-section computed tomography (CT)...
  65. ncbi Physical characterization of a scanning photon counting digital mammography system based on Si-strip detectors
    Magnus Aslund
    Department of Physics, Royal Institute of Technology, AlbaNova, 106 91, Stockholm, Sweden
    Med Phys 34:1918-25. 2007
    ..6-206 microGy range. The peak DQE was 72% and 73% in the scan and slit direction, respectively, measured with a 28 kV W-0.5 mm Al anode-filter combination with an added 2 mm Al filtration...
  66. ncbi Cascaded systems analysis of noise reduction algorithms in dual-energy imaging
    Samuel Richard
    Department of Medical Biophysics, University of Toronto, Toronto, Ontario M5G 2M9, Canada
    Med Phys 35:586-601. 2008
    ....
  67. pmc Digital tomosynthesis of the chest for lung nodule detection: interim sensitivity results from an ongoing NIH-sponsored trial
    T Dobbins James
    Med Phys 35:2554-7. 2008
    ..0001). Digital tomosynthesis showed significantly improved sensitivity of detection of known small lung nodules in all three size groups, when compared to PA chest radiography...
  68. pmc Medical grade vs off-the-shelf color displays: influence on observer performance and visual search
    Elizabeth A Krupinski
    Department of Radiology, University of Arizona, 1609 N Warren Bldg 211 Rm 112, Tucson, AZ 85724, USA
    J Digit Imaging 22:363-8. 2009
    ..Medical-grade color displays at 1 year old yield better diagnostic and search efficiency than COTS color displays and thus are recommended for primary reading if color displays are to be used...
  69. ncbi Multidetector computed tomography chest examinations with low-kilovoltage protocols in adults: effect on image quality and radiation dose
    Mi Jung Kim
    Department of Radiology, Gachon University Gil Medical Center, Incheon, Republic of Korea
    J Comput Assist Tomogr 33:416-21. 2009
    ..The purpose of our study was to assess the effect on image quality and radiation dose of chest multidetector computed tomography (CT) examinations with low-kilovoltage protocols for adults...
  70. ncbi A theoretical model for respiratory motion artifacts in free-breathing CT scans
    John H Lewis
    Department of Radiation Oncology, University of California, San Diego, La Jolla, CA 92093, USA
    Phys Med Biol 54:745-55. 2009
    ....
  71. ncbi Breast lesion detection and classification: comparison of screen-film mammography and full-field digital mammography with soft-copy reading--observer performance study
    Per Skaane
    Department of Radiology, Ullevaal University Hospital, Breast Imaging Center, Kirkeveien 166, N 0407 Oslo, Norway
    Radiology 237:37-44. 2005
    ..To retrospectively compare screen-film and full-field digital mammography with soft-copy interpretation for reader performance in detection and classification of breast lesions in women in a screening program...
  72. pmc Comparison of new and established full-field digital mammography systems in diagnostic performance
    Eun Sook Ko
    Department of Radiology and Center for Imaging Science, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul 135 710, Korea
    Korean J Radiol 14:164-70. 2013
    ..To compare the diagnostic performance of new and established full-field digital mammography (FFDM) systems...
  73. ncbi Evaluation of image quality and radiation dose of thoracic and coronary dual-source CT in 110 infants with congenital heart disease
    Moez Ben Saad
    Radiology Department, CC Marie Lannelongue, 133 av de la Résistance, Plessis Robinson, 92350, France
    Pediatr Radiol 39:668-76. 2009
    ..There are only a few reports on the diagnostic accuracy, and the technical and clinical feasibility, of multidetector CT (MDCT) in infants with congenital heart disease (CHD)...
  74. ncbi Image quality and radiation dose of low dose coronary CT angiography in obese patients: sinogram affirmed iterative reconstruction versus filtered back projection
    Rui Wang
    Department of Radiology, Beijing Anzhen Hospital, Capital Medical University, 100029 Beijing, China
    Eur J Radiol 81:3141-5. 2012
    ....
  75. ncbi Individually adapted coronary 64-slice CT angiography based on precontrast attenuation values, using different kVp and tube current settings: evaluation of image quality
    Jean Francois Paul
    Department of Radiology, Centre Chirurgical Marie Lannelongue, 133 avenue de la Resistance, 92350 Le Plessis Robinson, Paris, France
    Int J Cardiovasc Imaging 27:53-9. 2011
    ..Image quality may be preserved with substantial radiation dose savings in patients with low attenuation values on precontrast images...
  76. ncbi Tomographic mammography using a limited number of low-dose cone-beam projection images
    Tao Wu
    Rosenstiel Basic Sciences Research Center, Brandeis University, Waltham, Massachusetts 02454, USA
    Med Phys 30:365-80. 2003
    ..The method is illustrated with images from mastectomy specimens, a phantom, and human volunteers. The results show how image quality is affected by various data-collection protocols...
  77. ncbi Prospectively versus retrospectively ECG-gated 256-slice coronary CT angiography: image quality and radiation dose over expanded heart rates
    Yang Hou
    Department of Radiology, Shengjing Hospital of China, Medical University, 36 Sanhao Street, 110004, Shenyang, Liaoning Province, People s Republic of China
    Int J Cardiovasc Imaging 28:153-62. 2012
    ..Our experience demonstrates the applicability of this technique over a wider range of heart rates (up to 75 bpm) than previously reported...
  78. ncbi The value of digital tomosynthesis in the diagnosis of suspected pulmonary lesions on chest radiography: analysis of diagnostic accuracy and confidence
    Emilio Quaia
    Department of Radiology, Cattinara Hospital, University of Trieste, 34149 Trieste, Italy
    Acad Radiol 17:1267-74. 2010
    ..The aim of this study was to investigate the value of digital tomosynthesis in the diagnosis of suspected pulmonary lesions on chest radiography...
  79. ncbi Variations in performance of LCDs are still evident after DICOM gray-scale standard display calibration
    Joanna M Lowe
    University College Dublin, Belfield, Ireland
    AJR Am J Roentgenol 195:181-7. 2010
    ..The purpose of this study is to identify the impact of calibration on physical and psychophysical performance of liquid crystal displays (LCDs) and the extent of potential variance across various types of LCDs...
  80. ncbi Diagnostic accuracy of high-pitch dual-source CT for the assessment of coronary stenoses: first experience
    Sebastian Leschka
    Institute of Diagnostic Radiology, University Hospital Zurich, Switzerland
    Eur Radiol 19:2896-903. 2009
    ....
  81. ncbi Automatic generation of 3D coronary artery centerlines using rotational X-ray angiography
    Uwe Jandt
    Philips Technologie GmbH Forschungslaboratorien, Röntgenstrasse 24 26, 22335 Hamburg, Germany
    Med Image Anal 13:846-58. 2009
    ..A success rate of 93.5% (i.e. with no or slight deviations) is achieved compared to 58.8% success rate of semi-automatically extracted models...
  82. pmc Dental CT metal artefact reduction based on sequential substitution
    S Tohnak
    Sirilawan Tohnak, 78 309 General Purpose South Building, School of ITEE, The University of Queensland, Brisbane QLD 4072, Australia
    Dentomaxillofac Radiol 40:184-90. 2011
    ....
  83. ncbi Digital tomosynthesis for aortic arch calcification evaluation: performance comparison with chest radiography with CT as the reference standard
    Eun Young Kim
    Department of Radiology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
    Acta Radiol 53:17-22. 2012
    ..Recently developed digital tomosynthesis has shown improved detection of pulmonary lesions with a radiation dose comparable to conventional CR but with a much lower radiation dose than CT...
  84. ncbi Comparisons of image quality and radiation dose between iterative reconstruction and filtered back projection reconstruction algorithms in 256-MDCT coronary angiography
    Yang Hou
    Department of Radiology, Shengjing Hospital of China, Medical University, Shenyang, Liaoning Province, PR China
    AJR Am J Roentgenol 199:588-94. 2012
    ..The purpose of this study is to compare image quality and radiation dose between iterative reconstruction and filtered back projection (FBP) reconstruction algorithms in 256-MDCT coronary angiography...
  85. ncbi Assessing radiologist performance using combined digital mammography and breast tomosynthesis compared with digital mammography alone: results of a multicenter, multireader trial
    Elizabeth A Rafferty
    Department of Radiology, Massachusetts General Hospital, 55 Fruit St, Boston, MA 02114, USA
    Radiology 266:104-13. 2013
    ..To compare radiologists' diagnostic accuracy and recall rates for breast tomosynthesis combined with digital mammography versus digital mammography alone...
  86. ncbi Digital mammography image quality: image display
    Eliot Siegel
    University of Maryland, Department of Radiology, Baltimore, MD, USA
    J Am Coll Radiol 3:615-27. 2006
    ....
  87. ncbi Advanced applications of digital mammography: tomosynthesis and contrast-enhanced digital mammography
    John M Lewin
    Diversified Radiology of Colorado, PC, Denver, Colorado 80204, USA
    Semin Roentgenol 42:243-52. 2007
  88. ncbi Feasibility of fully automated detection of fiducial markers implanted into the prostate using electronic portal imaging: a comparison of methods
    Emma J Harris
    Joint Department of Physics, Institute of Cancer Research, Sutton, Surrey, United Kingdom
    Int J Radiat Oncol Biol Phys 66:1263-70. 2006
    ..To investigate the feasibility of fully automated detection of fiducial markers implanted into the prostate using portal images acquired with an electronic portal imaging device...
  89. ncbi Evaluation of clinical image processing algorithms used in digital mammography
    Federica Zanca
    Department of Radiology and Leuven University Center of Medical Physics in Radiology, University Hospitals Leuven, 3000 Leuven, Belgium
    Med Phys 36:765-75. 2009
    ..Objective measurements, such as described here, should be used by the manufacturers to select the optimal image processing algorithm...
  90. ncbi Multichannel CT: evaluating the spine in postoperative patients with orthopedic hardware
    Annette C Douglas-Akinwande
    Department of Radiology, Indiana University Medical Center, University Hospital 0279, 550 N University Blvd, Indianapolis, IN 46202, USA
    Radiographics 26:S97-110. 2006
    ..Soft-tissue structures are best visualized by interactively varying the window width and level settings. Implementation of these techniques can yield diagnostic-quality images and aid in patient treatment...
  91. ncbi Digital mammography: an update
    R Schulz-Wendtland
    Department of Radiology, University Hospital of Erlangen, Erlangen, Germany
    Eur J Radiol 72:258-65. 2009
    ..Additionally digital mammography offers options of advanced processing such as digital tomosynthesis and contrast enhanced mammography. The future of breast imaging will be fusion of different imaging systems (hybrid systems)...
  92. pmc Estimation of regional myocardial mass at risk based on distal arterial lumen volume and length using 3D micro-CT images
    Huy Le
    Department of Radiological Sciences, University of California, Irvine, CA 92697, United States
    Comput Med Imaging Graph 32:488-501. 2008
    ....
  93. ncbi Image quality and dose management in digital radiography: a new paradigm for optimisation
    H P Busch
    Department of Radiology, Krankenhaus der Barmherzigen Brudder, Nordalle, Trier, Germany
    Radiat Prot Dosimetry 117:143-7. 2005
    ..These fundamental differences in comparison to conventional film/screens necessitate the development of new strategies for dose and quality optimizations. A set of referral criteria based upon three dose levels is proposed...
  94. ncbi Evaluation of tumor angiogenesis of breast carcinoma using contrast-enhanced digital mammography
    Clarisse Dromain
    Department of Radiology, Institut Gustave Roussy, 39 rue Camille Desmoulin, Villejuif Cedex, France 94805
    AJR Am J Roentgenol 187:W528-37. 2006
    ....
  95. ncbi Dose levels from thoracic and pelvic examinations in two pediatric radiological departments in Norway - a comparison study of dose-area product and radiographic technique
    Hilde Kjernlie Sæther
    Diagnostic Physics Section, The Interventional Centre, Oslo University Hospital, Oslo, Norway
    Acta Radiol 51:1137-42. 2010
    ..In clinical practice age is often the only available parameter describing the patient, and thus, evaluation of dose levels in pediatric radiology on the basis of DAP related to age alone would be useful in optimization work...
  96. ncbi Evaluation of a flat panel digital radiographic system for low-dose portable imaging of neonates
    Ehsan Samei
    Department of Radiology, Duke University, DUMC 3302, Durham, North Carolina 27710, USA
    Med Phys 30:601-7. 2003
    ..The rapid availability of flat-panel images in portable imaging was found to be an added advantage for timely clinical decision-making...
  97. pmc Verifying 4D gated radiotherapy using time-integrated electronic portal imaging: a phantom and clinical study
    John R van Sörnsen de Koste
    Department of Radiation Oncology, VU University Medical Center, Amsterdam, The Netherlands
    Radiat Oncol 2:32. 2007
    ..RGRT is commonly performed using external surrogates of tumor motion. We describe the use of time-integrated electronic portal imaging (TI-EPI) to verify the position of internal structures during RGRT delivery..
  98. ncbi Clinical image quality criteria for full field digital mammography: a first practical application
    Chantal Van Ongeval
    Department of Radiology, UZ Leuven, Campus Gasthuisberg, 3000 Leuven, Belgium
    Radiat Prot Dosimetry 129:265-70. 2008
    ..Together with physical tests of image quality, critical radiological evaluation of the quality should be included in the acceptance process of digital mammography...
  99. ncbi Metal artifact reduction image reconstruction algorithm for CT of implanted metal orthopedic devices: a work in progress
    Patrick T Liu
    Department of Diagnostic Radiology, Mayo Clinic Arizona, Scottsdale, AZ 85259, USA
    Skeletal Radiol 38:797-802. 2009
    ..We performed this prospective study to evaluate the effectiveness of an experimental metal artifact reduction (MAR) image reconstruction program for CT...
  100. ncbi Accuracy of CT-based thickness measurement of thin structures: modeling of limited spatial resolution in all three dimensions
    Sven Prevrhal
    Osteoporosis and Arthritis Research Group, Department of Radiology, University of California San Francisco, San Francisco, California 94117, USA
    Med Phys 30:1-8. 2003
    ....
  101. pmc Breast percent density: estimation on digital mammograms and central tomosynthesis projections
    Predrag R Bakic
    Department of Radiology, University of Pennsylvania, 3400 Spruce St, Philadelphia, PA 19104, USA
    Radiology 252:40-9. 2009
    ..To evaluate inter- and intrareader agreement in breast percent density (PD) estimation on clinical digital mammograms and central digital breast tomosynthesis (DBT) projection images...

Research Grants63

  1. Bright and Fast Sensor for Time Resolved X-Ray Diffraction Studies
    VIVEK V NAGARKAR; Fiscal Year: 2010
    ....
  2. Novel Nanorods for High Efficiency Medical Imaging Applications
    Christopher J Summers; Fiscal Year: 2011
    ..They will have applications in digital radiography, crystallography, and various medical imaging applications, enhancing their value to the NIH and to the molecular biology and medical communities as a whole. ..
  3. Novel Nanorods for High Efficiency Medical Imaging Applications
    Christopher J Summers; Fiscal Year: 2013
    ....
  4. Photonic Bandgap Structures for Improved Timing and Spatial Resolution in PET Det
    BIPIN SINGH; Fiscal Year: 2010
    ....
  5. Black Silicon Photodiodes for Enhanced Digital Radiography Detectors
    MARTIN U PRALLE; Fiscal Year: 2010
    ..Improving the imaging performance can lead to reduced x-ray dose to the patient or improved the image fidelity and resolution at equal dose levels. ..
  6. RESEARCH TRAINING IN MEDICAL PHYSICS
    Maryellen L Giger; Fiscal Year: 2013
    ..Thus, there is a clear need for training of medical physicists. This is the rationale for our proposed research training program. ..
  7. Healing of Segmental Defects of Bone by Gene Transfer
    Christopher H Evans; Fiscal Year: 2013
    ..Because the technology uses existing hardware, clinical translation should be straightforward. ..
  8. Digital X-Ray Device for Molecular Imaging Center
    PETER STEPHEN CONTI; Fiscal Year: 2010
    ..Animal research conducted with this instrument may translate into clinical research trials, with great public health implications. ..
  9. Transparent Nanophotonic Scintillator for X-ray Imaging
    Zhitao Kang; Fiscal Year: 2013
    ..We believe this nanophotonic scintillator will make better X-ray scintillating screens than those currently in use. ..
  10. Scimagix Web-Based Scientific Image Management System
    Douglas Hanson; Fiscal Year: 2005
    ....
  11. EPITAXIAL FILM SCINTILLATORS FOR DIGITAL RADIOGRAPHY
    ALEXANDER LEMPICKI; Fiscal Year: 1999
    ..We believe that the proposed work will result in better X-ray scintillator materials than any now available." PROPOSED COMMERCIAL APPLICATION: NOT AVAILABLE ..
  12. TREE-STRUCTURED STATISTICAL METHODS
    Richard Olshen; Fiscal Year: 1993
    ....
  13. ASYMMETRIC DUAL SCREEN CR CHEST IMAGING
    Chris Shaw; Fiscal Year: 2000
    ..The asymmetric dual-screen CR technique should help upgrade the quality of CR chest images substantially and lead to improved accuracy for primary diagnosis of pulmonary diseases. ..
  14. Nanocrystalline Phosphors for Medical Imaging Applications
    CHRISTOPHER SUMMERS; Fiscal Year: 2009
    ....
  15. A Dual Energy X-Ray Detector for Digital Mammography
    TUMAY TUMER; Fiscal Year: 2005
    ..We thus anticipate that it will reduce both false negative and false positive results in breast cancer screening and eventually lead to saving more lives and reducing unnecessary trauma to patients. ..
  16. EFFECTS OF AGING AND EXERCISE ON BONE MASS
    Coralease Ruff; Fiscal Year: 1992
    ....
  17. New Design of a Photon Counting Detector for Breast CT
    Vivek Nagarkar; Fiscal Year: 2009
    ..Outside medical use, this detector will be extremely important for such applications as X-ray inspections at airports and borders. ..
  18. EQUALIZED DUAL ENERGY/DUAL PHOSPHOR CHEST RADIOGRAPHY
    John Boone; Fiscal Year: 1993
    ..The comprehensive approach to digital chest imaging proposed here should increase the effectiveness of chest radiography, by increasing the sensitivity and specificity to pulmonary nodules and other chest pathologies...
  19. Development of ZnTe Powder Phosphor for Protein Crystallographic X-ray Detectors
    CHRISTOPHER SUMMERS; Fiscal Year: 2009
    ....
  20. OPTICAL CERAMIC SCINTILLATORS FOR DIGITAL RADIOGRAPHY
    ALEXANDER LEMPICKI; Fiscal Year: 2001
    ..The immediate market includes not only the entire dental community, but also other radiographic imaging such as tomography, and potentially extends to virtually every X-ray machine now in use. ..
  21. CMOS Cassette For Digital Upgrade of Film Based Mammography Systems
    MEHMET BAYSAL; Fiscal Year: 2006
    ..This project proposes to take advantage of these unique features of CMOS technology to develop the first FFDM upgrade cassette of its kind. [unreadable] [unreadable]..
  22. FULL FIELD IMAGING CASSETTE FOR MAMMOGRAPHY
    Jeffrey Gordon; Fiscal Year: 1999
    ..A low-cost, large-area format X-ray imager with significantly higher image quality than current systems provide will find widespread acceptance in many medical and industrial settings. ..
  23. OPTICALLY NON-SCATTERING STORAGE PHOSPHOR SCREENS
    PETER SOLTANI; Fiscal Year: 1992
    ..Success of the proposed effort is expected to result in digital radiography system superior to both existing storage phosphor technologies and screen/film systems...
  24. aSi/CsI FP digital chest imaging with scatter rejection
    Chris Shaw; Fiscal Year: 2005
    ..abstract_text> ..
  25. KNOWLEDGE BASED COMPUTER AIDED DETECTION SCHEME
    Yuan Hsiang Chang; Fiscal Year: 2000
    ..Receiver- operating characteristics (ROC) analysis will also be performed to evaluate the scheme performance using a clinical database that was never used during the scheme development and optimization. ..
  26. Energy Sensitive Digital Radiography
    MARTIN PRALLE; Fiscal Year: 2004
    ..Such detectors are known to have good object and energy resolution with excellent linearity and SNR. The problem of parallax presented by having a thick gas absorber has been largely solved. ..
  27. MEDICAL IMAGE PERCEPTION CONFERENCE IX
    Elizabeth Krupinski; Fiscal Year: 2001
    ..This grant will be used to provide financial support for about 12 graduate students and residents, and the logistic support of adios-visual equipment, publicity and printing. ..
  28. THE PURPOSE OF THE CONTRACT IS TO DEVELOP A NOVEL, HIGH-INTENSITY VERSION OF A D
    Nalin Kumar; Fiscal Year: 2011
    ..abstract_text> ..
  29. Bi-Plane Correlation Imaging: Detection of Lung Cancer
    Ehsan Samei; Fiscal Year: 2007
    ..The findings will be used to substantiate the capability of BCI for improving the early detection of lung nodules and to optimize its performance on actual clinical cases. ..
  30. Early Detection of Lung Cancer via Bi Plane Correlation
    Ehsan Samei; Fiscal Year: 2002
    ..The findings will be used to demonstrate the capability of the approach for improving the detection of lung nodules, and thus the prognosis of lung cancer. ..
  31. Resolution requirements for mammographic displays
    Ehsan Samei; Fiscal Year: 2004
    ..The results will be used to formulate recommendations to the breast imaging community concerning display resolution criteria for safe and optimized soft-copy display of digital mammograms. ..
  32. PREVALENCE EFFECT IN IMAGING SYSTEMS EVALUATIONS
    David Gur; Fiscal Year: 2001
    ..abstract_text> ..
  33. ROC Analysis of Imaging System Evaluations
    David Gur; Fiscal Year: 2002
    ..abstract_text> ..
  34. US Prostate Cancer Detection with Dutasteride Pretreatment
    Ethan Halpern; Fiscal Year: 2008
    ..unreadable] [unreadable] [unreadable]..
  35. Comparing Performance Under FROC Paradigm - A Non Parametirc Approach
    David Gur; Fiscal Year: 2008
    ..unreadable] [unreadable] [unreadable]..
  36. ROC Analysis of Imaging System Evaluations
    David Gur; Fiscal Year: 2009
    ..We will develop closed-form solutions for the ANOVA procedure conducted on all possible bootstrap values. ..
  37. The Laboratory Effect in Breast Cancer Detection Studies
    David Gur; Fiscal Year: 2007
    ..The comparison we are attempting to do is at the very core of our ability (or not) to generalize laboratory observer performance data to the general clinical environment in a valid manner. ..
  38. Assessment of Variance Structure in ROC Studies
    David Gur; Fiscal Year: 2006
    ..e., those that are the less demanding of the expensive resources of gathering patient cases and expanding radiologists reading time. ..
  39. OBSERVER PERFORMANCE STUDIES-READER SELECTION & TRAINING
    David Gur; Fiscal Year: 2002
    ..While they proposed to continue to investigate several aspects in this regard, the current proposal would focus on the possible effects of observer (reader) selection and training on study design and results. ..
  40. 3D Massive Training ANN for CAD for Colon Cancer in CT Colonography
    Kenji Suzuki; Fiscal Year: 2010
    ....
  41. OPTIMIZING SOFTCOPY DISPLAYS FOR DIGITAL MAMMOGRAPHY
    Elizabeth Krupinski; Fiscal Year: 2003
    ..The JND metrix model will then be used to systematically explore and optimize CRT design tradeoffs for current and future digital-mammography display systems. ..
  42. OPTIMIZING SOFTCOPY DISPLAYS FOR DIGITAL MAMMOGRAPHY
    Elizabeth Krupinski; Fiscal Year: 2002
    ..The JND metrix model will then be used to systematically explore and optimize CRT design tradeoffs for current and future digital-mammography display systems. ..
  43. Optimized Compression for Telepathology Virtual Slides
    Elizabeth Krupinski; Fiscal Year: 2009
    ....
  44. Exploration of Stereo Display for Lung Cancer Screening
    Xiao Hui Wang; Fiscal Year: 2005
    ..We expect to demonstrate that the use of a stereo display for lung cancer screening will result in improved accuracy and efficiency, and this could greatly increase the efficacy of this screening process. ..
  45. Neonatal Chest Phantom for Computed Radiography Testing
    Steven Don; Fiscal Year: 2006
    ..abstract_text> ..
  46. MIPS XII Conference
    Elizabeth Krupinski; Fiscal Year: 2007
    ..unreadable] [unreadable] [unreadable]..
  47. Medical Image Perception Society Confrence XI
    Elizabeth Krupinski; Fiscal Year: 2005
    ..abstract_text> ..
  48. Conference--Medical Image Perception
    Elizabeth Krupinski; Fiscal Year: 2003
    ..This grant will be used to provide financial support for about 12 graduate students and residents, as well as logistic support for publicity and program printing. ..
  49. An Automated System for Breast Cancer Biomarker Analysis
    John J Heine; Fiscal Year: 2010
    ..This work will produce a calibrated automated density assessment package that may be easily implemented across institutions without modifications for use in the FFDM systems that is tailored for tissue-related risk research. ..
  50. Fractional flow reserve measurement based on coronary angiographic images
    SABEE Y MOLLOI; Fiscal Year: 2010
    ..This quantification technique could be used to measure fractional flow reserve in patients undergoing standard coronary arteriography. ..
  51. Quantification of coronary calcium mass by dual energy fluoroscopy
    Sabee Molloi; Fiscal Year: 2009
    ..Dual-energy imaging, because of its motion insensitivity, can serve as a foundation for quantitative cardiac analysis to proceed. ..
  52. Quantification of Regional coronary Blood Flow
    Sabee Molloi; Fiscal Year: 2003
    ..This quantification technique could be used to measure regional myocardial perfusion in patients undergoing standard coronary arteriography. ..
  53. X-ray imaging using edge-on-microchannel plate detectors
    Sabee Molloi; Fiscal Year: 2006
    ..It can potentially provide a high-resolution detector with significant reduction in patient dose for digital mammography. ..
  54. COMPUTERIZED MAMMOGRAPHIC LESION DESCRIPTION
    John Heine; Fiscal Year: 2002
    ....
  55. TOMOSYNTHESIS FOR IMPROVED PULMONARY NODULE DETECTION
    James Dobbins; Fiscal Year: 2005
    ..These pilot studies will characterize and minimize effects of patient motion, optimize the number of reconstructed planes and patient entrance exposure, and evaluate slice viewing vs volume rendering. ..