[Excretion urogram with angiotomography sensitivity and specificity in the diagnosis of renal artery stenosis; a comparison with differences in renal size and contrast density on early films (author's transl)].
Intravenous bolus injection of contrast material with angiotomography permits direct demonstration and evaluation of the renal arteries during an excretion urogram. Angiotomography was carried out in 71 patients with suspected reno-vascular hypertension; the results were compared with contrast excretion and renal size on the two sides, and with the findings of catheter angiography. In the presence of haemodynamically significant stenosis the sensitivity of angiotomography was 87% and its specificity was 99%. The sensitivity of renal size differential was only 20% and of contrast excretion differential 47%. A combination of all three methods resulted in a sensitivity of 93%. The advantages of demonstrating the renal arteries as a part of an excretion urogram are discussed, particularly with respect to possible treatment.
D000328:Adult; D005260:Female; D005352:Fibromuscular Dysplasia / Q000000981:diagnostic imaging; D006801:Humans; D006978:Hypertension, Renovascular / Q000000981:diagnostic imaging; D008297:Male; D008875:Middle Aged; D012077:Renal Artery / Q000000981:diagnostic imaging; D012078:Renal Artery Obstruction / Q000000981:diagnostic imaging*; D014056:Tomography, X-Ray / Q000379:methods*; D014567:Urography / Q000379:methods*
Ausscheidungsurogramm mit Angiotomographie. Sensitivität und Spezifität in der Diagnostik von Nierenarterienstenosen im Vergleich zur Seitendifferenz von Nierengrösse und Kontrastmittelausscheidung (Frühserienurogramm).