论文部分内容阅读
本实验通过荧光微血管造影的方法观察活体大鼠肺表面微循环,并与普通光下观察法进行了比较。结果显示:1.5％～2.0％的荧光素钠为一良好的肺微循环造影剂,肺微循环的荧光图象与普通光观察法比较,血管显影清晰,边界明确,能准确地测定微血管的真实口径变化,并判断肺血流的方向,区分肺微动、静脉;肺表面微动脉密度明显高于细静脉,以内径<60μm的微动脉最多见,肺微动脉多呈直角分出,直径50～55μm的微动脉内血流速度为0.258±0.021cm/s。
In this experiment, we observed the microcirculation of the lung surface of living rats by fluorescence microangiography and compared them with the ordinary light observation method. The results showed that 1.5% ~ 2.0% sodium fluorescein is a good pulmonary microcirculation contrast agent. Fluorescent images of pulmonary microcirculation are clear compared with the ordinary light observation, the blood vessels clear, the boundary is clear, can accurately determine the microvascular real Diameter changes, and determine the direction of pulmonary blood flow, pulmonary micro-venous distinction; venous; pulmonary artery surface micro-arterial density was significantly higher than the diameter of the inner diameter of <60μm most common arteries, pulmonary arterioles were mostly right angle, diameter 50 The intra-arterial blood flow velocity of ~ 55 μm was 0.258 ± 0.021 cm / s.