Sacrum magnetic resonance imaging for low back and tail bone pain: A quality initiative to evaluate and improve imaging utility

Figure 1 Axial T1 and STIR images demonstrate bilateral sacroiliac joint edema and irregularity consistent with sacroiliitis, considered a major change in diagnosis. These inflammatory changes resulted in no changes to management in this patient who eventually underwent microdiscectomy for disc extrusion seen on concurrent lumbar spine magnetic resonance. A: Axial T1 image; B: STIR image.