Figure 3
From: AI driven analysis of MRI to measure health and disease progression in FSHD
Overview of process to objectively quantify STIR content in individual muscles as shown through an example patient. (A) The DIXON images are registered to the STIR images (displayed in pane) to ensure the same coverage is used. (B) The STIR bright regions are segmented for every slice across all muscles from the STIR scans. The clinical STIR grading (number in black) and manually segmented STIR portion (in purple) for each muscle from the STIR image is demonstrated. (C) Final STIR percent is found by finding the content of labeled STIR present in the labeled muscle’s region. A 3D rendering of the overlaid segmented STIR (bright blue) and muscle (pinkish/red) is illustrated, in which a final STIR content of 72% was found for the tibialis anterior.
