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《上海交通大学学报：医学版》
>Morphological and Signal Characteristics of Rotator Cuff Tears on Conventional MRI and MR Arthrography: Comparing with Gross Anatomy and Histopathology
Morphological and Signal Characteristics of Rotator Cuff Tears on Conventional MRI and MR Arthrography: Comparing with Gross Anatomy and Histopathology
Objective To study the MR characterizations of supraspinatus and infraspinatus tendon lesions by comparing with grossanatomy and histopathology. Methods The study group consisted of20 cadaver shoulders which were underwent the same imaging pro-tocols of conventional MRI and MR arthrography. Results SE-T2WI images or MR arthrography respectively possessed of high speci-ficity (95.6%, 100%), but low sensitivity (70.6%, 58.8%) for diagnosing rotator cuff tears. By uniting two images techniques,could remedy its limitations and would markedly increase the sensitivity (88.2%). There were many factors influencing the visualizationsof partial thickness tears of rotator cuff on MR images, from which uppermost factors are tear extent, ruptured synovial capsule, scar andsynovial proliferation. Conclusion MRI diagnoses of rotator cuff lesions (especially partial thickness tears) must carefully be esti-mated by combining T2WI images and MR arthrography.
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