Supraspinatus tendon tears: comparison of 3D US and MR arthrography with surgical correlation
- Authors
- Kang, Chang Ho; Kim, Sam Soo; Kim, Jung Hyuk; Chung, Kyoo Byung; Kim, Yun Hwan; Oh, Yu-Whan; Jeong, Woong-Kyo; Kim, Baek Hyun
- Issue Date
- 11월-2009
- Publisher
- SPRINGER
- Keywords
- Shoulder; Supraspinatus tendon; MR arthrography; Three-dimensional ultrasound
- Citation
- SKELETAL RADIOLOGY, v.38, no.11, pp.1063 - 1069
- Indexed
- SCIE
SCOPUS
- Journal Title
- SKELETAL RADIOLOGY
- Volume
- 38
- Number
- 11
- Start Page
- 1063
- End Page
- 1069
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/134685
- DOI
- 10.1007/s00256-009-0734-6
- ISSN
- 0364-2348
- Abstract
- The objective of the study was to compare the diagnostic reliability of 3D US with MR arthrography in diagnosing supraspinatus tendon tears, with arthroscopic findings used as the standard. In a prospective study 50 patients who later underwent arthroscopic surgery of the rotator cuff were examined pre-operatively by 3D US with MR arthrography. The presence or absence of a full- or partial-thickness supraspinatus tendon tear and the tear size as demonstrated by each imaging and arthroscopy was recorded. The tear size was divided into three grades: small (< 1 cm), medium (1-3 cm), and large (> 3 cm). The arthroscopic diagnosis was a full-thickness tear in 40 patients, partial-thickness tears in 5, and intact supraspinatus tendon in 5. 3D US correctly diagnosed 35 out of 40 full-thickness tears and MR arthrography 39 out of 40 full-thickness tears. Regarding partial-thickness tears, 3D US underestimated 2 cases as no tear and overestimated 1 case as a full-thickness tear. MR arthrography underestimated 1 case as a partial-thickness tear and overestimated 2 cases as full-thickness and partial-thickness tears respectively. 3D US and MR arthrography yield a sensitivity for full-thickness tears of 87.5% and 97.5% with specificity of 90.0% and 90.0%. Based on the grading system, 3D US measurements correctly predicted the tear size of 23 (65.7%) of the 35 full-thickness tears and MR arthrography 30 (75.0%) of the 39 full-thickness tears. Three-dimensional ultrasound seems to be a promising imaging modality comparable to MR arthrography for the assessment of the supraspinatus tendon tears.
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