COMPARISON OF COLOR-CODED DUPLEX SCANNING AND INTRAARTERIAL ANGIOGRAPHY FOR DIAGNOSIS OF RENAL-ARTERY STENOSIS IN PATIENTS WITH HYPERTENSION AND CORONARY-ARTERY DISEASE

In a prospective study 78 hypertensive patients with suspected coronar y artery disease were consecutively diagnosed by cardiac catheterizati on, renal angiography and color coded duplex scanning. The main renal arteries could be examined sufficiently in 95% of the cases. Different doppler criteria like Pourcelot-index, aliasing-phenomenon of the col or coding and the peak systolic velocity (PSV) in the main renal arter ies were assessed in their lability to detect renal artery stenosis. P SV turned out to be the moot reliable parameter with a sensitivity of 89% and a specificity of 98%.