Interobserver variation in duplex sonographic scanning in the femoropopliteal tract.

摘要: The diagnostic value of duplex sonographic scanning was demonstrated in a number studies, but there is lack consensus on which characteristic the Doppler spectrum correlates best with severity peripheral vascular disease. In prospective study we quantified interobserver variation for diagnosis Forty-one patients intermittent claudication were independently examined by two observers. observers unaware angiographic findings. Reproducibility classification and separate characteristics expressed as kappa coefficients, Pearson correlation repeatability coefficients. PSV most reproducible spectrum. disease 0 to 19%, 20 49%, 50 99%, 100% diameter reduction highly (kappa 0.68). other moderately poorly ; wave form contour, spectral broadening, end diastolic velocity had values 0.56, 0.20, respectively. Our findings justify simplification criteria