DIAGNOSIS OF ANGIOLOGIC COMPLICATIONS IN HEMODIALYSIS-PATIENTS USING RADIOLOGIC TECHNIQUES - ROLE OF DIGITAL SUBTRACTION ANGIOGRAPHY AND DIGITAL SPOT IMAGING

Digital subtraction angiography (DSA) and recently developed digital s pot imaging (DSI) are modern radiologic techniques in the angiologic d iagnosis of hemodialysis fistulas. Main advantage of these methods is their high sensitivity for contrast media allowing transvenous investi gation of arterial vessels without direct punction. This unique featur e combined with the possibility of post-investigational digital proces sing makes digital angiography superior to conventional radiologic inv estigation Color-Doppler sonography can be used alternatively to DSA/D SI in selected patients especially for >>bed-side diagnosis<< of hemod ialysis vascular access.