Patient Positioning
Patient seated on a revolving stool, arm in slight internal rotation. Elbow flexed (90°), palm up.
Probe Positioning
Place the probe over the long biceps tendon between the greater and lesser tuberosities. The tendon is easier located in its short axis – then rotate the transducer (90°) in order to visualize the long axis of the tendon. Shift the probe medially and laterally (parallel to the long axis of the tendon) to examine the tendon and the synovial sheath and move the probe up from the intraarticular course of the long head of biceps and down to the myotendinous junction.
Note: Small amounts of fluid are physiological. Using the doppler mode will show the circumflex humeral artery between the humerus and the long head of biceps.
Panoramic view of the long head of biceps from its intraarticular course to the myotendinous junction (near the pectoralis major tendon).