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The rotator cuff tear: MR evaluation.

J D Reeder1, S Andelman

  • 1Magnetic Imaging Associates, P.A., Baltimore, Maryland 21208.

Magnetic Resonance Imaging
|January 1, 1987
PubMed
Summary
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Magnetic resonance imaging (MRI) effectively diagnoses shoulder rotator cuff tears and impingement syndrome. This study highlights MRI

Area of Science:

  • Orthopedics
  • Radiology
  • Musculoskeletal Imaging

Background:

  • Musculoskeletal pathology evaluation increasingly utilizes Magnetic Resonance Imaging (MRI).
  • The shoulder joint presents diagnostic challenges for rotator cuff tears and impingement syndrome.

Purpose of the Study:

  • To evaluate the diagnostic role of MRI in shoulder pathology, specifically rotator cuff tears and impingement.
  • To assess MRI's ability to identify specific indicators of rotator cuff tears and impingement syndrome.

Main Methods:

  • Utilized a 1-Tesla MRI scanner (operating at 0.5 Tesla).
  • Acquired coronal T1-weighted images in all subjects; coronal spin density and T2-weighted sequences were used in select cases.
  • Examined eight healthy volunteers and 10 patients with confirmed rotator cuff tears or impingement symptoms.

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Main Results:

  • MRI consistently visualized the supraspinatus muscle and tendon in normal individuals.
  • Tear indicators included hypointense gaps on T1-weighted images and increased signal on T2-weighted images within the supraspinatus tendon.
  • MRI identified subacromial impingement in one patient with impingement syndrome and negative arthrography.

Conclusions:

  • MRI is a valuable tool for diagnosing rotator cuff tears and evaluating impingement syndrome.
  • Potential applications include assessing tendon retraction and noninvasive etiological determination before irreversible tendon damage.