Angiographic imaging.

Angiographic imaging in 1986 employs not only conventional film arteriography and venography, but also digital subtraction angiography (DSA). Arteriography is still the best method of demonstrating pathology in patients with peripheral vascular disease. Transluminal angioplasty, its indications and results are discussed. Patients with suspected renovascular hypertension should be given intravenous DSA and, if pathology is demonstrated, renin sampling as well. Patients with severe, acute, life-threatening hemorrhage may have angiography not only to localize bleeding sites, but also to treat them by transcatheter embolization techniques. Various other angiographic techniques including venous sampling are discussed briefly.