Dang Bich Nguyet1, Nguyen Tien Long1, Bui Van Lenh 1, Nguyen Quang Trung1
1 Hanoi Medical University Hospital

Main Article Content


The retrospective study was performed on 45 patients with subacromial impingement syndrome who underwent magnetic resonance imaging (MRI) which then were compared with the results of their arthroscopy.

Results: 95.2% out of the cases were found to have type II and III acromion morphology; 73.8% had subacromial enthesophyte spurs; 66.7% had subacromial bursitis; 97.6% showed lesions of supraspinatus tendons in which partial–thickness rotator cuff tear was the most commonly seen. MRI showed a sensitivity (Sn) of 91.6%, specificity (Sp) of 72.2%, positive predictive value (PPV) of 81.4%, negative predictive value (NPV) of 86.67% in diagnosing subacromial bursitis. For partial-thickness rotator cuff tear, it showed a Sn of 92.5%, Sp of 93.3%, PPV of 96.1%, NPV of 87.5%. In evaluation of full-thickness rotator cuff tear, MRI showed a Sn of 100% and Sp of 100%.

Article Details


1. Kvalvaag E, Anvar M, Karlberg AC et al., Shoulder MRI features with clinical correlations in subacromial pain syndrome: a cross-sectional and prognostic study, BMC Musculoskelet Disord, 2017; 18(1): 469.
2. Bigliani LU, Ticker JB, Flatow ELet al., The relationship of acromial architecture to rotator cuff disease, Clin Sports Med., 1991; 10(4): 823–38.
3. Saupe N, Pfirrmann CWA, Schmid MR et al., Association Between Rotator Cuff Abnormalities and Reduced Acromiohumeral Distance, Am J Roentgenol., 2006; 187(2): 376–82.
4. Lehtinen JT, Belt EA, Kauppi MJ et al., Bone destruction, upward migration, and medialisation of rheumatoid shoulder: a 15 year follow up study, Ann Rheum Dis., 2001; 60(4): 322–6.
5. Monu JU, Pruett S, Vanarthos WJ et al., Isolated subacromial bursal fluid on MRI of the shoulder in symptomatic patients: correlation with arthroscopic findings, Skeletal Radiol, 1994; 23(7): 529–33.
6. Ardic F, Kahraman Y, Kacar M et al., Shoulder impingement syndrome: relationships between clinical, functional, and radiologic findings, Am J Phys Med Rehabil., 2006; 85(1): 53–60.
7. De Abreu MR, Chung CB, Wesselly M et al., Acromioclavicular joint osteoarthritis: Comparison of findings derived from MR imaging and conventional radiography, Clin Imaging., 2005; 29(4): 273–7.
8. Ravikanth R, Majumdar P, Magnetic resonance imaging diagnosis of rotator cuff tears in subacromial impingement syndrome: A retrospective analysis of large series of cases from a single center, Apollo Med., 2019; 16(4): 208–208.
9. Sasiponganan C, Dessouky R, Ashikyan O et al., Subacromial impingement anatomy and its association with rotator cuff pathology in women: radiograph and MRI correlation, a retrospective evaluation, Skeletal Radiol, 2019; 48(5): 781–90.
10. Van Dyck P, Gielen JL, Veryser J et al., Tears of the supraspinatus tendon: assessment with indirect magnetic resonance arthrography in 67 patients with arthroscopic correlation, Acta Radiol Stockh Swed 1987, 2009; 50(9): 1057–63.
11. Iannotti JP, Zlatkin MB, Esterhai JL et al., Magnetic resonance imaging of the shoulder. Sensitivity, specificity, and predictive value, J Bone Joint Surg Am, 1991; 73(1): 17–29.
12. Nelson MC, Leather GP, Nirschl RP et al., Evaluation of the painful shoulder. A prospective comparison of magnetic resonance imaging, computerized tomographic arthrography, ultrasonography, and operative findings, J Bone Joint Surg Am., 1991; 73(5): 707–16.