Radionuclide angiography after occlusion of abdominal aorta-early hepatic activity and collateral supply.

A case of abdominal aortic occlusion and collateral circulation diagnosed by 99mTc-DTPA radionuclide angiography and confirmed by contrast aortography is presented. Early hepatic activity was seen, and the relation of this phenomenon to aortic occlusion is discussed.