Fig 2. 3D contour plot of the disk shown in Fig 1. The anterior portion of the disk is to the reader’s left and superior portion toward the top of the page. The inclination of the disk in the 3D plot is due to the angulation of the intervertebral disk from the axial plane. Notice the intranuclear cleft is clearly distinguished from the more amorphous regions of the nucleus pulposus because of its lower T2 values.