Angiogram. This is often an X-ray of your arteries and veins to find blockage or narrowing. This process is done by Placing a skinny, adaptable tube into an artery in the leg and injecting a distinction dye. The distinction dye can make the arteries and veins visible on the X-ray. 干性坏疽：常见为肢端组织缺血坏死，干枯变黑并向躯干发展，直到血液循环足以防止坏死的地方停止。干性坏疽的病... https://madonnan900sjz9.hazeronwiki.com/user