Ashley J. Welch

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Applications: Art, Cardiology, Dentistry, Dermatology, Developmental Biology, Gastroenterology, Gynecology, Microscopy, NDE/NDT, Neurology, Oncology, Ophthalmology, Other Non-Medical, Otolaryngology, Pulmonology, Urology
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About Ashley J. Welch

Ashley J. Welch

Ashley J. Welch is on the Faculty at Biomedical Engineering at University of Texas Austin.   He is the Marion E. Forsman Centennial Professor in Engineering.  Research Focus: Optical and thermal interactions of laser light with tissue, medical applications of lasers.  Research Interests: Dr. Welch is involved in the general field of Medical Optics. His speciality is the optical and thermal response of tissue to laser radiation. Basic science investigations of light and heat propagation in tissue form the bases for evaluating present and future therapeutic and diagnostic applications of lasers.

  1. Mentioned In 5 Articles

  2. Investigations on laser hard tissue ablation under various environments.

    Explore Article NCBI HomePage (Jun 5 2008)

    Investigations on laser hard tissue ablation under various environments. Phys Med Biol. 2008 Jun 3;53(12):3381-3390 Authors: Kang HW, Oh J, Welch AJ The purpose of this study was to investigate the effect of liquid environments upon laser bone ablation. A long-pulsed Er,Cr:YSGG laser was employed to ablate bovine bone tibia at various radiant exposures under dry, wet (using water or perfluorocarbon) and spray environmental conditions. Energy loss by the application ... (Read Full Article)

    Comment on Article Mentions:   University of Texas at Austin   Ashley J. Welch

  3. Investigations on laser hard tissue ablation under various environments

    Explore Article Institute of Physics (Jun 2 2008)

    The purpose of this study was to investigate the effect of liquid environments upon laser bone ablation. A long-pulsed Er,Cr:YSGG laser was employed to ablate bovine bone tibia at various radiant exposures under dry, wet (using water or perfluorocarbon) and spray environmental conditions. Energy loss by the application of liquid during laser irradiation was evaluated, and ablation performance for all conditions was quantitatively measured by optical coherence tomography (OCT). Microscope ... (Read Full Article)

    Comment on Article Mentions:   University of Texas at Austin   Ashley J. Welch

  4. Laser treatment of cutaneous vascular lesions

    Explore Article uspto.gov (Sep 13 2005) Cardiology , Dermatology , Patents , Doppler

    Methods for treating maladies such as cutaneous vascular lesions. A patient in need of vascular lesion treatment is identified. A hyperosmotic agent is administered to a region adjacent the lesion. Blood flow velocity is slowed within the region using the hyperosmotic agent, and the lesion is exposed to laser radiation. (Read Full Article)

    Comment on Article Mentions:   University of Texas at Austin   Jennifer K. Barton   Ashley J. Welch

  5. Methods of enhanced light transmission through turbid biological media

    Explore Article uspto.gov (Aug 14 2001) Patents

    A new process to increase light transmission in biological tissue has been developed. The technique involves temporarily replacing tissue water with a fluid that has a refractive index closer to that of inter/intra cellular components. Subsequently, the amount of index mis-match between these components and the fluid environment is temporarily decreased. This lowers the amount of random reflection and refraction which also reduces light scattering. In addition, the infrared absorption ... (Read Full Article)

    Comment on Article Mentions:   Jennifer K. Barton   Ashley J. Welch   University of Texas at Austin

  6. In vivo bidirectional color Doppler flow imaging of picoliter blood volumes using optical coherence tomography

    Explore Article opticsinfobase.org (Sep 15 1997) Doppler

    In vivo bidirectional color Doppler flow imaging of picoliter blood volumes using optical coherence tomography ...rence tomography Joseph A. Izatt, Manish D. Kulkarni, Siavash Yazdanfar, Jennifer K. Barton, and Ashley J. Welch Optics Letters, Vol. 22, Issue 18, pp. 1439-1441 (1997) doi:10.1364/OL.22.001439 » V... (Read Full Article)

    Comment on Article Mentions:   Joseph A. Izatt   Manish D. Kulkarni   Case Western Reserve University

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