(a) Visualization options table for 3DQI imaging. (b) Component table for 3DQI measurements. (c) Initial 3DQI outline, in red lines, for sagittal slice of subject 161 spinal cord with syrinx, labeled with green arrow. (d) 3DQI area measurement, in red highlight, for subject 161 spinal cord with syrinx, labeled with green arrow. (e) Expanded view of 3DQI outline, in red lines, for cervical spinal cord on subject 161 pre-operation, sagittal slice. (f) Expanded view of 3DQI area measurement for cervical spinal cord on subject 161 pre-operation, sagittal slice. (g) 3DQI outline, red line, for subject 161 spinal cord pre-operation, axial slice. (h) 3DQI area measurement, in red highlight, for subject 161 spinal cord pre-operation, axial slice.