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胃肠道丰富的血流灌注是维持正常消化、吸收、分泌、运动和排泄功能的重要因素,也是许多疾病病理生理过程的重要环节,它的重要性愈来愈被人们所认识。与此同时,测定胃肠道血流量的方法不断得到改进,并出现了许多新技术,如氢气清除技术(hydrogen gas clearance technique,H_2CT)、激光多普勒血流仪(laser-doppler velocimetry or flowmetry,LDV,LDF)等。本文旨在复习有关文献,介绍用途较大的技术和方法,反映这一领域的新进展。
Gastrointestinal plentiful perfusion is an important factor to maintain the function of normal digestion, absorption, secretion, exercise and excretion. It is also an important part of the pathophysiology of many diseases, and its importance is more and more recognized. In the meantime, the method of determining the blood flow of the gastrointestinal tract has been continuously improved and many new technologies have emerged, such as hydrogen gas clearance technique (H_2CT), laser-doppler velocimetry or flowmetry , LDV, LDF) and so on. The purpose of this article is to review the literature, introduce techniques and methods that are of greater use, and reflect new developments in this area.