MRI Technique in SHOULDER Instability

Routine imaging of the shoulder is done in three planes. The acquisition of images in the oblique coronal plane, which is the single most important imaging plane in the shoulder joint, is done parallel to the supraspinatus tendon. Oblique sagittal images are acquired at a plane perpendicular to the plane of the glenoid face, and best planned on an axial image.
Articular cartilage and labrum are best evaluated on a proton density (PD) or gradient echo image on axial and oblique coronal planes. The rotator cuff tendons should be evaluated on oblique coronal and oblique sagittal planes. For evaluation of the signal intensity of the rotator cuff tendons, T2W fat-saturated images are ideal. On oblique sagittal images, the entire rotator cuff tendons, muscles and RCI can be assessed. In the setting of trauma, T1W images are less helpful, and can be acquired in oblique coronal plane only

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