The Utility of MR Imaging of the Shoulder Joint: Comparison of the MR Imaging between Conventional MR Imagingand Arthrographic MR Imaging.
10.3348/jkrs.1998.39.3.567
- Author:
Dong Sik CHOI
1
;
Kyung Nam RYU
;
Ihn Sub KIM
;
Yong Girl RHEE
Author Information
1. Department of Diagnostic Radiology, KyungHee University College of Medicine.
- Publication Type:Original Article
- Keywords:
Shoulder, injuries;
Shoulder, MR;
Shoulder, arthrograph
- MeSH:
Arthrography;
Arthroscopy;
Bursitis;
Diagnosis;
Female;
Humans;
Ligaments;
Magnetic Resonance Imaging*;
Male;
Rotator Cuff;
Sensitivity and Specificity;
Shoulder Joint*;
Shoulder Pain;
Shoulder*;
Synovitis;
Tendon Injuries
- From:Journal of the Korean Radiological Society
1998;39(3):567-573
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
PURPOSE: To evaluate the diagnostic value of MRI of the shoulder. MATERIALS AND METHODS: Between January andJune 1997, shoulder MRI and arthroscopy were performed in a total of 48 patients with shoulder pain (n=30) orshoulder instability (n=18). Forty-five were males and three were females; their ages ranged from 16 to 67 (mean32.5) years. The period between shoulder MRI and arthroscopy was between one and 390 (mean, 42.2) days. Twenty-sixpatents underwent MR arthrography (AMR), and 22 conventional MRI(CMR). Each image was analyzed for rotator cuffinjury, glenoid labral injury, SLAP lesion, and biceps tendon injury. RESULTS: On arthroscopy, one disease wasfound in 34 patients, two were found in six, three diseases were found in seven, and one patient had fourdiseases. Arthroscopic diagnosis was as follows: rotator cuff injury, 29 ; SLAP lesion, 12 ; glenoid labralinjury, 10 ; biceps tendon injury, 4 ; subacromial bursitis, 2 ; chronic synovitis, 1 ; adhesive capsulitis, 1 ;superior glenohumeral ligament injury, 1 ; normal, 1. For rotator cuff injury, the sensitivity of MRI was 65.5%and specificity was 93.0% (AMR : 66.7%, 95.8%, CMR : 65.2%, 86.4%). For SLAP lesion, sensitivity was 58.3% andspecificity was 97.2% (AMR : 66.7%, 100%, CMR : 50%, 93.8%) ; for glenoid labral injury, sensitivity was 80.0% andspecificity was 89.5% (AMR : 85.7%, 84.2%, CMR : 66.7%, 94.7%), and for biceps tendon injury, the false negativerate was 100%. CONCLUSION: In cases involving glenoid labral injury, the diagnostic accuracy of shoulder MRI wasrelatively high ; in rotator cuff injury and SLAP lesion, however, diagnosis was limited, and in biceps tendoninjury was difficult. We suggest, however, that MR arthrography has certain diagnostic advantages overconventional MRI.
