Fig. 2From: Biochemical changes in lumbar facet joint and disc degeneration by T2* mappingMeasurement of T2* value of lumbar intervertebral disc. A length was drawn from the anterior edge to the posterior edge and divided by 2:6:2 on first echo anatomical image (left). Regions of interest of anterior AF, posterior AF, and NP were manually delineated, respectively, and copied to the corresponding T2* mapping image (right)Back to article page