Kinematic MRI of the Shoulder

Abstract

Accurate evaluation of the capsular/labral complex requires cine studies for accurate diagnosis. Signal changes alone or labral morphology alone varies through rotation, and static MRI does not accurately assess these morphologic changes, which vary with extremity position. Capsular attachments can be identified with cine studies accurately and reproducibly. Subcoracoid impingement can be identified with a narrowing of the coracohumeral distance to < 11 mm in internal rotation, which is suggestive of pathology.