MR evaluation of rotator cuff pathology using T2-weighted fast spin-echo technique with and without fat suppression

AJR. American Journal of Roentgenology
R D SingsonM Friedman

Abstract

This study was designed to compare MR imaging findings from T2-weighted fast spin-echo images with and without fat suppression and then to compare surgical results with those MR imaging interpretations in the evaluation of rotator cuff disease. T2-weighted fast spin-echo images--with and without fat suppression--of 177 shoulder MR imaging studies were reviewed separately in a retrospective, randomized, and blinded fashion. Both sets of images were read in conjunction with the corresponding proton density-weighted images. The diagnosis of normal tendon, tendinosis, degeneration, and partial- and full-thickness tears was made using established criteria. T2-weighted fast spin-echo techniques with and without fat suppression showed excellent agreement in the diagnosis of normal tendon (kappa=.90) amd full-thickness tears (kappa=.98), good agreement for partial tears (kappa=.70) and moderate agreement for the combined group of tendinosis and degeneration (kappa=.53). MR imaging and surgical correlation in 43 patients showed 86% specificity (95% confidence interval, 65-96%) for intact tendons, and 100% sensitivity (95% confidence interval, 82-100%) for full-thickness tears on T2-weighted fast spin-echo imaging--both without and with ...Continue Reading

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