High-field and low-field MR imaging of superior glenoid labral tears and associated tendon injuries.

High-field and low-field MR imaging of superior glenoid labral tears and associated tendon injuries. Research Abstract Details 

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High-field and low-field MR imaging of superior glenoid labral tears and associated tendon injuries. Abstract Text:

G A Tung,D Entzian,A Green,J M Brody,

OBJECTIVE: The purpose of this study was to determine the performance characteristics of high-field and low-field MR imaging for the diagnosis of a glenoid superior labral anteroposterior (SLAP) tear. MATERIALS AND METHODS: High-field (n = 46) or low-field (n = 21) MR imaging was performed on 41 patients with SLAP tears and 26 patients with normal superior labra. The superior labrum was classified into one of four types on the basis of patterns of intralabral signal intensity. The relative frequency of rotator cuff tears and long head of the biceps tendinopathy was also assessed. RESULTS: For the diagnosis of SLAP tear, the sensitivity of high-field MR imaging was 90% (95% confidence interval = 74%, 98%), specificity was 63% (35%, 85%), and accuracy was 80% (66%, 91%). The sensitivity of low-field MR imaging was 64% (31%, 89%), specificity was 70% (35%, 93%), and accuracy was 67% (43%, 85%). A branched linear or stellate focus of abnormal intralabral signal intensity was associated with a SLAP tear in 86% of patients. Conversely, two other labral patterns correlated with a normal superior labrum in 71% of patients. Abnormal signal intensity in the biceps tendon was seen in 15% of patients with a SLAP tear. Full-thickness (37%) and partial-thickness (31%) rotator cuff tears were often seen. CONCLUSION: The performance characteristics of high-field MR imaging are superior to those of low-field MR imaging for the diagnosis of a superior labral tear. Rotator cuff tears can be seen in many patients with superior labral tears, but abnormal signal intensity in the biceps tendon is uncommon.

High-field and low-field MR imaging of superior glenoid labral tears and associated tendon injuries. Publishing Authors By Initials

GA Tung,D Entzian,A Green,JM Brody,

For similar musculoskeletal system: tendons research abstracts see: musculoskeletal system: tendons research

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High-field and low-field MR imaging of superior glenoid labral tears and associated tendon injuries. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: AJR. American journal of roentgenology

VOLUME: 174

Page Numbers: 1107-14

Journal Abbreviation:

ISSN: 0361-803X

DAY: 15

MONTH: Apr

YEAR: 2000

High-field and low-field MR imaging of superior glenoid labral tears and associated tendon injuries. Information

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LANGUAGE: eng

NlmUniqueID: 7708173

High-field and low-field MR imaging of superior glenoid labral tears and associated tendon injuries. Keywords Mesh Terms:

KEYWORDS: Tendons

MESH TERMS: pathology

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Grant and Affiliation Information for High-field and low-field MR imaging of superior glenoid labral tears and associated tendon injuries.

AFFILIATION: Department of Diagnostic Imaging, Brown University School of Medicine, Rhode Island Hospital, Providence 02903, USA.

Country: UNITED STATES

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MEDLINETA: AJR Am J Roentgenol

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