Mesenteric ischemia can affect the small intestine or colon. Accordingly, intestinal ischemia may be secondary to arterial occlusion or may be due to venous outlet obstruction. This is a serious condition that needs to be properly evaluated and intervened actively from the beginning as well as knowing what intestinal ischemia causes in order to promptly prevent it.

Digital subtraction mesenteric angiography is an imaging technique using an iodinated contrast agent to visualize the superior or inferior mesenteric vascular system. These are the arteries that supply blood to the small intestine, colon, and rectum.