Measurement of Gastric Blood Flow by Two Dimentional Laser Doppler Perfusion Imager
نویسندگان
چکیده
منابع مشابه
Tissue blood flow measurement by laser Doppler technique
Measurement of blood flow and the effects of different factors on tissue blood flow are important fields of research in physiology and pharmacology. So far, different methods have been innovated, using laser light is the Last one. In this article history, principles and specifications of laser technique along with its advantages and disadvantages ( in comparison with other methods) are revie...
متن کاملContinuous measurement of tissue blood flow by laser-Doppler spectroscopy.
Laser light scattered from tissue in vivo is broadened in line width as a result of the Doppler shift produced by moving red cells in the microcirculation. A feasibility study was carried out to demonstrate use of this effect to measure and monitor tissue blood flow. Light from a helium-neon laser illuminated a 1-mm area of tissue (human skin or rat renal cortex), and the backscattered light wa...
متن کاملBlood Flow Measurement by Laser Doppler Method in Orofacial Region
Laser Doppler is a noninvasive, objective, reproducible and painless method for measuring blood flow in tissue microcirculation. This method is based on the Doppler effect, the change in frequency of light reflecting from blood cells in motion. Light from helium-neon laser through optical fibers and probes is directed to the surface of the tissue in which the flow is measured. Light portion is ...
متن کاملEvaluation of laser-Doppler perfusion imaging for measurement of blood flow in cortical bone.
Most techniques currently available to measure blood flow in bone are time consuming and require destruction of the tissue, but laser-Doppler technology offers a less invasive method. This study assessed the utility of laser-Doppler perfusion imaging (LDI) to measure perfusion in cortical bone. Twelve mature New Zealand White rabbits were assigned to one of three groups: normal control, constri...
متن کاملLaser Doppler measurement of rectal mucosal blood flow.
BACKGROUND Gut mucosal blood flow measurement is used to study a variety of disorders and possibly extrinsic neural function. AIMS To determine optimal measurement criteria and validate this technique as a measure of level of activity of extrinsic autonomic gut innervation. METHODS In 26 healthy volunteers a laser Doppler mucosal probe was applied 10 cm from the anus. Response to inhaled sa...
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ژورنال
عنوان ژورنال: THE JOURNAL OF JAPAN SOCIETY FOR LASER SURGERY AND MEDICINE
سال: 1993
ISSN: 0288-6200
DOI: 10.2530/jslsm1980.14.supplement_95