N M Fried

Summary

Affiliation: Johns Hopkins University
Country: USA

Publications

  1. ncbi request reprint High intensity focused ultrasound ablation of the vas deferens in a canine model
    William W Roberts
    Department of Pathology, Brady Urological Institute, The Johns Hopkins Medical Institutions, Baltimore, MD, USA
    J Urol 167:2613-7. 2002
  2. ncbi request reprint Therapeutic applications of lasers in urology: an update
    Nathaniel M Fried
    Johns Hopkins University School of Medicine, James Buchanan Brady Urological Institute, Biophotonics Laboratory, Baltimore, MD 21224, USA
    Expert Rev Med Devices 3:81-94. 2006
  3. ncbi request reprint High-power laser vaporization of the canine prostate using a 110 W Thulium fiber laser at 1.91 microm
    Nathaniel M Fried
    Department of Urology, Johns Hopkins Medical Institutions, Baltimore, Maryland 21224, USA
    Lasers Surg Med 36:52-6. 2005
  4. ncbi request reprint Optimization of the Erbium:YAG laser for precise incision of ureteral and urethral tissues: in vitro and in vivo results
    Nathaniel M Fried
    Department of Urology, Johns Hopkins Medical Institutions, Baltimore, Maryland, USA
    Lasers Surg Med 33:108-14. 2003
  5. ncbi request reprint High-power thulium fiber laser ablation of urinary tissues at 1.94 microm
    Nathaniel M Fried
    Department of Urology, Johns Hopkins School of Medicine, Baltimore, Maryland 21224, USA
    J Endourol 19:25-31. 2005
  6. ncbi request reprint Focused ultrasound ablation of the epididymis with use of thermal measurements in a canine model
    Nathaniel M Fried
    Department of Urology, Johns Hopkins Medical School, Baltimore, Maryland 21224, USA
    Fertil Steril 78:609-13. 2002
  7. ncbi request reprint Thulium fiber laser lithotripsy: an in vitro analysis of stone fragmentation using a modulated 110-watt Thulium fiber laser at 1.94 microm
    Nathaniel M Fried
    Department of Urology, Johns Hopkins Medical Institutions, Hopkins Bayview Medical Center, 4940 Eastern Avenue, Bldg A, Baltimore, MD 21224, USA
    Lasers Surg Med 37:53-8. 2005
  8. ncbi request reprint Potential applications of the erbium:YAG laser in endourology
    N M Fried
    Department of Urology, Johns Hopkins University School of Medicine, Baltimore, Maryland 21224, USA
    J Endourol 15:889-94. 2001
  9. ncbi request reprint Noninvasive vasectomy using a focused ultrasound clip: thermal measurements and simulations
    N M Fried
    Department of Urology, Johns Hopkins Medical School, Baltimore, MD 21224, USA
    IEEE Trans Biomed Eng 48:1453-9. 2001
  10. ncbi request reprint Transmission of Q-switched erbium:YSGG (lambda=2.79 microm) and erbium:YAG (lambda=2.94 microm) laser radiation through germanium oxide and sapphire optical fibres at high pulse energies
    Nathaniel M Fried
    Department of Urology, Johns Hopkins Medical Institutions, 4940 Eastern Avenue, Building A, Baltimore, Maryland, MD 21224, USA
    Lasers Med Sci 19:155-60. 2004

Collaborators

Detail Information

Publications24

  1. ncbi request reprint High intensity focused ultrasound ablation of the vas deferens in a canine model
    William W Roberts
    Department of Pathology, Brady Urological Institute, The Johns Hopkins Medical Institutions, Baltimore, MD, USA
    J Urol 167:2613-7. 2002
    ..We assessed the feasibility of using high intensity focused ultrasound to produce occlusion of the canine vas deferens...
  2. ncbi request reprint Therapeutic applications of lasers in urology: an update
    Nathaniel M Fried
    Johns Hopkins University School of Medicine, James Buchanan Brady Urological Institute, Biophotonics Laboratory, Baltimore, MD 21224, USA
    Expert Rev Med Devices 3:81-94. 2006
    ..This review provides an update on the most important new clinical and experimental therapeutic applications of lasers in urology over the past 5 years...
  3. ncbi request reprint High-power laser vaporization of the canine prostate using a 110 W Thulium fiber laser at 1.91 microm
    Nathaniel M Fried
    Department of Urology, Johns Hopkins Medical Institutions, Baltimore, Maryland 21224, USA
    Lasers Surg Med 36:52-6. 2005
    ..This study describes the preliminary testing of a high-power Thulium fiber laser for vaporization of the canine prostate, ex vivo...
  4. ncbi request reprint Optimization of the Erbium:YAG laser for precise incision of ureteral and urethral tissues: in vitro and in vivo results
    Nathaniel M Fried
    Department of Urology, Johns Hopkins Medical Institutions, Baltimore, Maryland, USA
    Lasers Surg Med 33:108-14. 2003
    ..The Erbium:YAG laser ablates soft tissues with minimal peripheral damage and may be a promising alternative to cold knife and Holmium:YAG laser for precise incision of urological strictures...
  5. ncbi request reprint High-power thulium fiber laser ablation of urinary tissues at 1.94 microm
    Nathaniel M Fried
    Department of Urology, Johns Hopkins School of Medicine, Baltimore, Maryland 21224, USA
    J Endourol 19:25-31. 2005
    ..This paper describes the preliminary testing of a new laser, the thulium fiber laser, as a potential replacement for the holmium:YAG laser for multiple applications in urology...
  6. ncbi request reprint Focused ultrasound ablation of the epididymis with use of thermal measurements in a canine model
    Nathaniel M Fried
    Department of Urology, Johns Hopkins Medical School, Baltimore, Maryland 21224, USA
    Fertil Steril 78:609-13. 2002
    ..To explore the epididymis as an alternative anatomical target to the vas deferens for noninvasive male sterilization using therapeutic focused ultrasound...
  7. ncbi request reprint Thulium fiber laser lithotripsy: an in vitro analysis of stone fragmentation using a modulated 110-watt Thulium fiber laser at 1.94 microm
    Nathaniel M Fried
    Department of Urology, Johns Hopkins Medical Institutions, Hopkins Bayview Medical Center, 4940 Eastern Avenue, Bldg A, Baltimore, MD 21224, USA
    Lasers Surg Med 37:53-8. 2005
    ..g., prostate). This is the first preliminary study of a high-power Thulium fiber laser for fragmentation of urinary stones...
  8. ncbi request reprint Potential applications of the erbium:YAG laser in endourology
    N M Fried
    Department of Urology, Johns Hopkins University School of Medicine, Baltimore, Maryland 21224, USA
    J Endourol 15:889-94. 2001
    ..The Er:YAG laser may represent an alternative to the cold knife and Ho:YAG laser in applications where minimal mechanical and thermal insult to tissue is required...
  9. ncbi request reprint Noninvasive vasectomy using a focused ultrasound clip: thermal measurements and simulations
    N M Fried
    Department of Urology, Johns Hopkins Medical School, Baltimore, MD 21224, USA
    IEEE Trans Biomed Eng 48:1453-9. 2001
    ..This study uses bio-heat transfer simulations and thermocouple measurements to determine the optimal ablation dosimetry for vas occlusion without skin burns...
  10. ncbi request reprint Transmission of Q-switched erbium:YSGG (lambda=2.79 microm) and erbium:YAG (lambda=2.94 microm) laser radiation through germanium oxide and sapphire optical fibres at high pulse energies
    Nathaniel M Fried
    Department of Urology, Johns Hopkins Medical Institutions, 4940 Eastern Avenue, Building A, Baltimore, Maryland, MD 21224, USA
    Lasers Med Sci 19:155-60. 2004
    ..This is the first report of germanium and sapphire fibre optic transmission of Q-switched erbium laser energies of 25-42 mJ per pulse...
  11. ncbi request reprint Laser ablation of the pulmonary veins by using a fiberoptic balloon catheter: implications for treatment of paroxysmal atrial fibrillation
    N M Fried
    Department of Biomedical Engineering, The Johns Hopkins University, Baltimore, Maryland 21205, USA
    Lasers Surg Med 28:197-203. 2001
    ..A new fiberoptic balloon catheter was tested as an alternative to radiofrequency catheter ablation for creation of circumferential thermal lesions at the pulmonary vein orifice...
  12. ncbi request reprint Side-firing germanium oxide optical fibers for use with erbium:YAG laser
    Anthony K Ngo
    Department of Electrical and Computer Engineering, Johns Hopkins University, Baltimore, Maryland, USA
    J Endourol 20:475-8. 2006
    ..This paper describes the simple construction and characterization of a side-firing germanium oxide fiber for potential use with the Er:YAG laser in endourology...
  13. ncbi request reprint Comparison of germanium oxide fibers with silica and sapphire fiber tips for transmission of erbium: YAG laser radiation
    Travis J Polletto
    Department of Urology, Johns Hopkins University, Baltimore, Maryland 21224, USA
    Lasers Surg Med 38:787-91. 2006
    ..The purpose of this study was to compare the transmission of Er:YAG laser radiation through germanium oxide trunk fibers with silica and sapphire fiber tips for potential use in contact tissue ablation during endoscopy...
  14. ncbi request reprint Erbium:YAG laser lithotripsy using hybrid germanium/silica optical fibers
    Yubing Yang
    Department of Urology, Johns Hopkins Medical School, JH Bayvuew Medical Center, 4940 Eastern Avenue, Baltimore, MD 21224, USA
    J Endourol 18:830-5. 2004
    ..This paper describes the initial testing of a hybrid germanium oxide/silica optical fiber for potential endoscopic use with the Er:YAG laser...
  15. ncbi request reprint High-intensity focused ultrasound ablation of the epididymis in a canine model: a potential alternative to vasectomy
    William W Roberts
    Brady Urological Institute, The Johns Hopkins Medical Institutions, Baltimore, Maryland 21287, USA
    J Endourol 16:621-5. 2002
    ..The epididymis may be a better target than the vas deferens because it is larger, more easily positioned in the HIFU focal zone, and more susceptible to occlusive injury at lower energy levels, thus reducing collateral damage...
  16. ncbi request reprint Comparison of erbium:yttrium-aluminum-garnet and holmium:yttrium-aluminum-garnet lasers for incision of urethra and bladder neck in an in vivo porcine model
    Ioannis M Varkarakis
    Department of Urology, Johns Hopkins Medical Institutions, Baltimore, Maryland, USA
    Urology 65:191-5. 2005
    ..To evaluate, in an animal model, differences in wound healing and scar formation in healthy urethra and bladder neck incised with the erbium (Er):yttrium-aluminum-garnet (YAG) and holmium (Ho):YAG lasers...
  17. ncbi request reprint Hybrid germanium/silica optical fibers for endoscopic delivery of erbium:YAG laser radiation
    Charles A Chaney
    Biophotonics Laboratory, Department of Urology, Johns Hopkins Medical School, Bayview Medical Center, 4940 Eastern Avenue, Baltimore, MD 21224, USA
    Lasers Surg Med 34:5-11. 2004
    ..This study reports the testing of a hybrid germanium/silica fiber capable of delivering Er:YAG laser radiation through a flexible endoscope...
  18. ncbi request reprint Subsurface tissue lesions created using an Nd:YAG laser and cryogen cooling
    Rahayu Ramli
    Department of Biomedical Engineering, Johns Hopkins University, Baltimore, Maryland, USA
    J Endourol 17:923-6. 2003
    ..This study investigated deep laser heating of tissue in combination with cryogen cooling of the surface for potential noninvasive targeting of subsurface tissue structures in urology...
  19. ncbi request reprint Linear lesions in myocardium created by Nd:YAG laser using diffusing optical fibers: in vitro and in vivo results
    N M Fried
    Department of Biomedical Engineering, Johns Hopkins University, Baltimore, Maryland 21205, USA
    Lasers Surg Med 27:295-304. 2000
    ..This study uses laser energy delivered through diffusing optical fibers as an alternative to radiofrequency energy for the creation of linear lesions in cardiac tissue in a single application...
  20. ncbi request reprint Subsurface tissue lesions created using an Nd:YAG laser and a sapphire contact cooling probe
    Rahayu Ramli
    Department of Biomedical Engineering, Johns Hopkins University, Baltimore, Maryland, USA
    Lasers Surg Med 35:392-6. 2004
    ..This study investigates deep laser coagulation of tissue in combination with contact cooling of the tissue surface for potential use in noninvasive procedures in urology...
  21. ncbi request reprint Imaging the cavernous nerves in the rat prostate using optical coherence tomography
    Nathaniel M Fried
    Department of Urology, Johns Hopkins Medical Institutions, Baltimore, Maryland, USA
    Lasers Surg Med 39:36-41. 2007
    ..The rat prostate serves as an excellent model for studying the use of OCT for imaging the CNs, as the rat CN is a large, visible, and distinct bundle allowing for easy identification with OCT in addition to histologic confirmation...
  22. doi request reprint Optical coherence tomography of cavernous nerves: a step toward real-time intraoperative imaging during nerve-sparing radical prostatectomy
    Soroush Rais-Bahrami
    James Buchanan Brady Urological Institute, Johns Hopkins Medical Institutions, Bethesda, Maryland 21287, USA
    Urology 72:198-204. 2008
    ..OCT is an imaging modality that allows for real-time, high-resolution, cross-sectional imaging of tissues...
  23. ncbi request reprint New laser treatment approaches for benign prostatic hyperplasia
    Nathaniel M Fried
    Department of Physics and Optical Science, University of North Carolina at Charlotte, 9201 University City Boulevard, Charlotte, NC 28223 0001, USA
    Curr Urol Rep 8:47-52. 2007
    ..This article reviews the latest developments in laser treatment of BPH over the past 2 years and provides a view toward the future of lasers in the treatment of BPH...
  24. doi request reprint Noncontact stimulation of the cavernous nerves in the rat prostate using a tunable-wavelength thulium fiber laser
    Nathaniel M Fried
    Department of Physics and Optical Science, University of North Carolina at Charlotte, North Carolina 28223 0001, USA
    J Endourol 22:409-13. 2008
    ..This study explored laser stimulation of the rat cavernous nerves as a potential alternative to electrical nerve mapping during nerve-sparing radical prostatectomy...