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KMID : 1103720070560040365
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Journal of the Korean Society of Radiology
2007 Volume.56 No. 4 p.365 ~ p.370
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16-Slice MDCT Arthrography of the Shoulder: Accuracy for Detection of Glenoid Labral and Rotator Cuff Tears
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Kim Kang-Deuk
Oh Jung-Teak
Kim Hyung-Joon
Lee Seung-Ah
Kim Hae-Won
Juhng Seon-Kwan
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Abstract
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Purpose:We wanted to determine the diagnostic accuracy of 16-slice MDCT arthrography (CTA) for glenoid labral and rotator cuff tears of the shoulder.
Materials and Methods:We enrolled forty-five patients who underwent arthroscopy after CTA for pain or instability of the shoulder joint. The CTA images were analyzed for the existence, sites and types of glenoid labral tears and the presence and severity of rotator cuff tears. We determined the sensitivity, specificity and accuracy of CTA for detecting glenoid labral and rotator cuff tears on the basis of the arthroscopy findings.
Results:At arthroscopy, there were 33 SLAP lesions (9 type I, 23 type II and 1 type III), 6 Bankart lesions and 31 rotator cuff lesions (21 supraspinatus, 9 infraspinatus and 1 subscapularis). On CTA, the sensitivity, specificity and accuracy for detecting 24 SLAP lesions, excluding the type I lesions, were 83%, 100% and 91%, the total rotator cuff tears were 90%, 100% and 98%, the full thickness supraspinatus tendon tears were 100%, 94% and 96%, and the partial thickness supraspinatus tendon tears were 29%, 100% and 89%, respectively.
Conclusions:16-slice MDCT arthrography has high accuracy for the diagnosis of abnormality of the glenoid labrum or rotator cuff tears and it can be a useful alternative to MRI or US.
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KEYWORD
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Shoulder, CT, arthrography, abnormalities, injuries
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