Exemplary cases for trapezius muscle segmentations. (A) Segmentation masks of the bilateral trapezius muscles (red areas) in a 25-year-old female and (B) in a 24-year-old male. Disclaimer ...

Conclusions: According to the acquired results, we conclude that IZ and MTrPs are located in well-defined areas in upper trapezius muscle. Moreover, MTrPs in upper trapezius are proximally located ...

The groups were matched with 22 healthy controls. All participants underwent a 3D turbo spin-echo MRI. The bilateral trapezius muscles were manually segmented, followed by muscle T2 extraction.