Fig. 2From: Spatial geometric and magnetic resonance signal intensity changes with advancing stages of nucleus pulposus degenerationDistribution of center coordinates on the sagittal images. The center weighted by signal intensity located posteriorly to the geometric center of the nucleus pulposus in 87.2% of Pfirrmann Grade I discs, 89.0% of Grade II discs and 76.5% of Grade III discs. The scale of the perpendicular axes was exaggerated in order to show the distribution in the superior-inferior direction in all three plotsBack to article page