Document Detail


Evaluation of post-exercise magnetic resonance images of the rotator cuff.
MedLine Citation:
PMID:  8958620     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
OBJECTIVE: To examine the effect of strenuous exercise on the magnetic resonance imaging (MRI) characteristics of the rotator cuff tendon. A second objective was to define an optimal time to image the rotator cuff and possibly eliminate exercise-induced false positives. DESIGN AND PATIENTS: Five male subjects from 24 to 38 years old with normal rotator cuffs by history, physical examination, and screening MRI underwent a rotator cuff exercise session on the Biodex System 2 (Biodex, Shirley, New York). The exercise sessions were followed by sequential MRI scans of the exercised shoulder. These were performed immediately and at 8 h and 24 h after exercise. RESULTS AND CONCLUSIONS: The rotator cuff tendon and subacromial-subdeltoid bursal signal remained unchanged from the pre-exercise through the 24-h post-exercise scans. The rotator cuff muscle signal was increased in five of five subjects on the immediate post-exercise fat-suppressed T2-weighted images. This signal returned to baseline by the 8-h scan. Positive findings of rotator cuff pathology on MRI after strenuous athletic activity should not be discounted as normal exercise-induced changes. Also, diagnostic MRI scanning may take place after a practice session without an increased risk of false positives.
Authors:
P M Cahoy; J F Orwin; M J Tuite
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Skeletal radiology     Volume:  25     ISSN:  0364-2348     ISO Abbreviation:  Skeletal Radiol.     Publication Date:  1996 Nov 
Date Detail:
Created Date:  1997-03-10     Completed Date:  1997-03-10     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  7701953     Medline TA:  Skeletal Radiol     Country:  GERMANY    
Other Details:
Languages:  eng     Pagination:  739-41     Citation Subset:  IM    
Affiliation:
Division of Orthopedic Surgery G5/358, University of Wisconsin Hospital and Clinics, Madison 53792-3228, USA.
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MeSH Terms
Descriptor/Qualifier:
Adult
Exercise / physiology*
False Positive Reactions
Humans
Magnetic Resonance Imaging*
Male
Rotator Cuff / anatomy & histology*,  physiology
Time Factors

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