Table 4.
Case | Target | No. of points | Mean residual (mm) | Normal distance (mm) |
---|---|---|---|---|
1 | Right | 1,700 | 5.1±3.5 | 4.7±2.5 |
Middle | 1,500 | 5.1 ±3.5 | 5.6±2.7 | |
Left | 2,700 | 4.8±3.5 | 9.3±3.7 | |
2 | Right | 3,000 | 5.0±3.7 | 4.5±3.7 |
Middle | 1,900 | 4.9±3.6 | 7.9±4.5 | |
Left | 1,500 | 4.9±3.7 | 9.0±5.1 | |
7 | Right | 1,000 | 4.5±2.9 | 5.2±4.3 |
Middle | 1,600 | 4.4±2.9 | 5.5±5.2 | |
Left | 1,300 | 4.5±3.0 | 2.6±2.5 |
In these studies, the targets are based on the inferior ridge of the liver broken into three regions. There are two metrics listed for each target. The first metric is a closest point distance (mean±SEM) in millimeters, which is listed in the fourth column. The second is the root-mean-square (mean±SEM) distance from each point on the preoperative target surface to where its surface normal intersects with the intraoperative target surface.