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Diagnostic Performance of MR Arthrography After Rotator Cuff Repair

¹ Department of Radiology, University Hospital Balgrist, Forchstrasse 340, Zurich CH-8008, Switzerland.
² Department of Orthopedic Surgery, University Hospital Balgrist, Zurich CH-8008, Switzerland.

View larger version (124K): [in a new window]   Fig. 1A —69-year-old man with full-thickness defect of rotator cuff. Coronal oblique T2-weighted turbo spin-echo (SE) image (TR/TE, 3,500/105) shows supraspinatus tendon defect (arrowheads).

View larger version (75K): [in a new window]   Fig. 1B —69-year-old man with full-thickness defect of rotator cuff. Coronal oblique T1-weighted fat-saturated turbo SE image (800/20) shows contrast material within full-thickness defect (arrows) and within subacromial bursa.

View larger version (110K): [in a new window]   Fig. 2A —67-year-old woman with partial-thickness defect of rotator cuff. Coronal oblique T2-weighted turbo spin-echo (SE) image (TR/TE, 3,500/105) shows subtle articular-sided partial-thickness substance defect of supraspinatus tendon (arrow).

View larger version (96K): [in a new window]   Fig. 2B —67-year-old woman with partial-thickness defect of rotator cuff. Coronal oblique T1-weighted fat-saturated turbo SE image (800/20) shows contrast material within defect (arrow). Susceptibility artifacts are visible around major tuberosity.

View larger version (122K): [in a new window]   Fig. 3A —40-year-old man with intact rotator cuff. Coronal oblique T2-weighted fat-saturated turbo spin-echo (SE) image (TR/TE, 3,000/91) shows intact rotator cuff. Postoperative hyperintensity can be seen within tendon substance (arrow). One observer incorrectly diagnosed case as bursa-sided partial-thickness defect.

View larger version (120K): [in a new window]   Fig. 3B —40-year-old man with intact rotator cuff. Coronal oblique T1-weighted fat-saturated turbo SE MR arthrographic image (792/12) shows contrast material within subdeltoid bursa (arrow).

View larger version (130K): [in a new window]   Fig. 4A —37-year-old woman with full-thickness defect not diagnosed on MR arthrography. Coronal oblique T2-weighted turbo spin-echo (SE) image (TR/TE, 3,500/105) with typical postoperative signal irregularity of supraspinatus tendon (arrow). No defect is visible.

View larger version (106K): [in a new window]   Fig. 4B —37-year-old woman with full-thickness defect not diagnosed on MR arthrography. Coronal oblique T1-weighted fat-saturated turbo SE image (800/20) shows susceptibility artifact (arrows) overlapping supraspinatus tendon. No contrast material is visible within subacromial bursa.

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