The morphologic change of inside diameter of micrangium of venous skin flaps were observed in different phase by using optical microscopy, electron microscopy and transparence method of perfusion of Chinese ink.

• 采用光学显微镜、电子显微镜和墨汁灌注透明等方法 ；观察皮瓣微血管内径在不同时期的形态变化 .