Figure 2. The percentage of protrusion was calculated from the ratio of the extent of disk protrusion (solid arrows) to the total diameter of the adjacent structure (in this case, the superior vena cava) (open arrows).
Figure 2. The percentage of protrusion was calculated from the ratio of the extent of disk protrusion (solid arrows) to the total diameter of the adjacent structure (in this case, the superior vena cava) (open arrows).