“…In fact, by using the same technique and by means of two kinds of evaluation (ie, morphological cross-sectional evaluation and Doppler parameters categorization), we could have two complementary findings at the same time. Obviously, in the case of discrepancy between duplex findings and clinical results, further complementary tool is required, for example by means of spiral computed tomography angiography (16) or threedimensional ultrasound imaging (37,38).…”