Fig. 2From: Ultra-short echo time MR imaging in assessing cartilage endplate damage and relationship between its lesion and disc degeneration for chronic low back pain patientsRepresentative images of ROIs in cartilaginous endplate (CEP), disc, and background in 25-year-old male volunteer. Mid sagittal image of subtracted ultra-short echo time images. ROI of CEP was drawn using freehand technique. In this image, ROI 1 is located on inferior CEP of L3 and 22 mm2 in area. ROI of disk (ROI 2) was circle and 8 mm2 in area. ROI of background (ROI 3) was circle and 9 mm2 in areaBack to article page