Document Type


Publication Date



Maine Medical Center, Medical Education, Maine Medical Center Research Institute

MeSH Headings

Rotator Cuff, Ultrasonography, Rotator Cuff Injuries


Purpose/Background: Diagnostic ultrasound (US) offers a cost-effective and accessible means of evaluating the cross-sectional area (CSA) of muscles as compared to the gold standard of Magnetic Resonance Imaging (MRI). Muscle CSA is directly related to the amount of force a muscle can produce. Rotator cuff CSA is especially important when considering the strength and function of the shoulder joint. The present study aims to test the validity, same-day and between day intra-rater reliability of US CSA measures of the supraspinatus (SS) and infraspinatus (IS) muscles of the shoulder compared to MRI. Number of Subjects: Thirty-two, right-hand dominant subjects were prospectively enrolled and completed this study (22 male, mean age, 43 years)


2020 Costas T. Lambrew Research Retreat