Superior Mesenteric Arteriography in Experimental Mesenteric Venous Thrombosis

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Abstract
Superior mesenteric arteriography was performed in dogs before and after experimentally induced superior mesenteric vein thrombosis. Venous occlusion results in reflux of contrast material into the aorta, decreased size and stretching of superior mesenteric arteries, opacification of fewer arteries, and delayed and prolonged arterial filling. Venous occlusion also produces more intense and prolonged opacification of the intestine, as well as thickening of the bowel wall. The presence of intraluminal contrast material was suggested. Expected opacification of the superior mesenteric and portal vein did not occur. Superior mesenteric arteriography is a logical technique of evaluating occlusive mesenteric vascular disease and represents a method by which arterial and venous mesenteric occlusion may be differentiated.