Articles from Ashley J. Welch

1-6 of 6
Categories:
Application: Bronchoscopy, Cardiology, Dentistry, Dermatology, Endoscopy, Glucose, Microscopy, Non-Medical, Ophthalmology
Miscellaneous: Acquisition, Funding, Jobs & Studentships, Partnership, Patents

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

    NCBI HomePage (Jun 5 2008) Explore Article

    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

  2. Investigations on laser hard tissue ablation under various environments

    Institute of Physics (Jun 2 2008) Explore Article

    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

  3. Enhancement of light in tissue using hyper-osmotic agents

    SPIE Digital Library (Feb 12 2008) Dermatology Explore Article

    Raiyan T. Zaman, Bo Chen, Ashwin B. Parthasarathy et al. Optical changes in skin blood flow due to the presence of glycerol were measured from a two-dimensional map of blood flow in skin blood vessels with a dynamic imaging technique using laser speckle. In this study a dorsal skin-flap window was implanted on the hamster skin with and without a hyper-osm ... [Proc. SPIE Int. Soc. Opt. Eng. 6854, 68541F ... (Read Full Article)

    Comment on Article

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

    NCBI HomePage (Jan 15 2008) Cardiology , Ophthalmology Explore Article

    We describe a novel optical system for bidirectional color Doppler imaging of flow in biological tissues with micrometer-scale resolution and demonstrate its use for in vivo imaging of blood flow in an animal model. Our technique, color Doppler optical coherence tomography (CDOCT), performs spatially localized optical Doppler velocimetry by use of scanning low-coherence interferometry. CDOCT is an extension of optical coherence tomography (OCT), employing coherent signal-acquisition electronics and joint time-frequency ... (Read Full Article)

    Comment on Article Mentions:   Joseph A. Izatt   Duke University   Jennifer K. Barton

  5. Laser treatment of cutaneous vascular lesions

    PatFT » Page 1 of 1 (Sep 13 2005) Cardiology , Dermatology , Patents Explore Article

    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

  6. Methods of enhanced light transmission through turbid biological media

    PatFT » Page 1 of 1 (Aug 14 2001) Patents Explore Article

    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

1-6 of 6
Home All Articles Entities Quotes Comments Login Register Powered by HiveFire