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. 2010 Mar 5;216(5):643–649. doi: 10.1111/j.1469-7580.2010.01212.x

Fig. 4.

Fig. 4

The volume of interest (VOI) (red-edged area) of the shoulder muscles. (A) MRI of axial view of right shoulder at the level of humeral head; and (B) MRI of oblique sagittal Y-shaped view of right shoulder. Del-A, anterior portion of deltoid; M, middle portion of deltoid; Del-P, posterior portion of deltoid; SSP, supraspinatus; SSC-S, superior portion of subscapularis; SSC-M, middle portion of subscapularis; SSC-I, inferior portion of subscapularis; ISP-S, superior portion of infraspinatus; ISP-I, inferior portion of infraspinatus; and TM, teres minor. The deltoid muscle is divided into three portions (anterior, middle and posterior). B is a schema of how the infraspinatus and the subscapularis muscles are divided into two and three portions, respectively.