[Determination of the length and site of the occlusion of extremity arteries--color duplex sonography versus angiography].

The aim of the study was to determine the accuracy of colour--coded Doppler sonography (CDS) compared to angiography in detecting the localisation and length of an occlusion in peripheral arteries. 118 legs of 107 patients with clinical suspected occlusion were examined prospectively with CDS before angiography. In 110 cases both methods identify identical localisations. The sensitivity in detecting occlusions was 97%, the exact localisation was diagnosed by CDS in 95% with a high correlation (r = 0, 96) of length measurements.