Fig. 4
From: Role of dynamic ultrasound versus MRI in diagnosis and assessment of shoulder impingement syndrome
a Digital radiography shows evidence of lateral downsloping of the acromion process. b MRI, sagittal STIR WIs: fluid signal seen at the articular surface of the supraspinatous tendon near its insertion (arrow). No evidence complete fiber interruption detected. Mild joint effusion is also noted. c MRI, sagittal T2WIs of the shoulder shows also partial-thickness tear of supraspinatous tendon. d Static US images show partial-thickness tear of the humeral surface of the supraspinatus tendon, seen as a small hypoechoic linear defect interrupting the tendon fibers (arrow)