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 in its short axis. Shift the probe up to the intraarticular course of the long head of biceps and down to the myotendinous junction (level of the humeral insertion of the pectoralis major tendon).
Note: Doppler signal of the bursa at the area of the rotator interval / biceps tendon recess