ACCURATE radiographic visualization of the arterial system is extremely important to the vascular surgeon. It is upon this more than any other single study that determination of operability rests. The information obtained allows the site and method of reconstruction to be chosen with accuracy. In some patients roentgenograms demonstrate an uncorrectable situation, thus preventing needless surgical exploration. This latter aspect is important in patients who frequently have occlusions in other systems and in whom unwarranted surgery is associated with a considerable risk.
The need for more precise diagnostic studies in the evaluation of arterial disease has long been recognized and the first report of human arteriography by Sicard and Forestier1 in 1923 was received with some enthusiasm. By 1929, Dos Santos2 had done aortograms in 300 patients and arteriographic techniques were becoming more generally used. It rapidly became apparent that the procedure of injecting radiopaque solutions into the