Role of Renal Angiography in The Era of Ultrasonography and CT

Park, Jae Hyung; Yang, Seung Oh; Han, Man Chung

Abstract

Role of renal angiography in the diagnosis of renal disease is changing after the advent of new imaging techniques such as ultrasonography and CT. Ultrasonography and CT examination started to be used clinically on March 1, 1979, in Seoul National University Hospital. Total 315 cases of renal angiography were made for recent 7 years from September 1, 1975 to August 30, 1982, 117 cases in 3 1/2 years before and 198 cases in 31/2 years after the installation of new imaging modalities. To evaluate the changing role of renal angiography, sequential flow patterns of various radiological examination were classified into 7 categories. Results of the analysis were as follows; 1. The increased ratio of renal angiography after the advent of new imaging modalities is 1.7 and slightly less than that of total radiological examinations. 2. The role of renal angiography is decreased in the diagnostic work-up of renal mass, hematuria, adrenal disease, renal failure and other renal evaluation. Angiography has significant role still in the evaluation for renovascular hypertension, renal trauma, transplantation donor, renalvein thrombosis and artificial embolization. 3. The most frequent flow pattern is AII (IVP-Aug) before and BII (IVP-US [CT]-Aug) after the advent of new imaging modalities.