Ultrasound imaging of carotid artery stenosis: application of the Society of Radiologists in Ultrasound Consensus Criteria to a Single Institution Clinical Practice.

摘要: Carotid duplex Doppler ultrasound (CDDU) is increasingly used for the evaluation of internal carotid artery (ICA) stenosis. In CDDU, velocity measurements are to estimate degree ICA Traditionally, radiologists have relied on institutional experience and published research when interpreting CDDU. 2003, a consensus committee experts convened as Society Radiologists in Ultrasound Consensus Committee proposed standard criteria grading stenosis including use peak systolic (PSV) greater than 230 cm/s assigning 70%. The purpose this study was evaluate accuracy Criteria classifying stenoses. This shows following: (1) that criterion PSV angiographic 70% performs predicted by committee, with sensitivity 95.3% (95% confidence interval [CI], 0.89-0.99) specificity 84.4% CI, 0.80-0.88); (2) using Pearson correlations, there no statistical difference found between correlation angiography (0.825 [95% 0.792-0.853]), end diastolic (0.762 0.718-0.799]), ICA/common (CCA) ratio (0.766 0.723-0.802]). ICA/CCA (0.643 0.584-0.696]) less predictive at 95% other 3 velocity-based variables, (3) 4 variables taken pairs (eg, velocity), pair statistically significant improvement performance. Peak combination does show slight trend toward superior