Research Article

The Influence of Suprascapular Notch Shape on the Visualization of Structures in the Suprascapular Notch Region: Studies Based on a New Four-Stage Ultrasonographic Protocol

Figure 6

Schematic arrangement of the classification of the suprascapular notch variations. Type I: MD is longer than STD; Type II: MD and STD are equal; Type III: STD is longer than MD; Type IV: a suprascapular foramen with a bony foramen is present; Type V: a discrete notch is present (arrow). MD: maximal depth; STD: superior transverse diameter.