For dry gangrene, vascular surgeons frequently do angiography (a radiologic examine with dye that reveals arterial blood move in tissues, also termed arteriogram) to see the extent of ongoing or potential arterial blood reduction to tissue. Soaked gangrene: This sort includes an an infection. It’s referred to as "moist" as https://www.sgvascularctr.com/what-is-a-gangrene/