Table 1 The number of cardiac surface vertices classified into the healthy and scar tissue categories based on semi-automated and automatic segmentation. There was no statistical difference in the methods (p=0.36 paired t-test).
| Â | Automated algorithm (# surface vertices) | Expert-operated semi-automated (# surface vertices) | % scar using automated algorithm | % scar using expert-operated semi-automated | % difference | ||
|---|---|---|---|---|---|---|---|
Patient | Healthy | Scar | Healthy | Scar | Â | Â | Â |
Pt. 1 | 4937 | 1167 | 5196 | 13.38 | 18.24 | 13.38 | +4.86 |
Pt. 2 | 7953 | 260 | 7954 | 2.87 | 2.77 | 2.87 | -0.10 |
Pt. 3 | 6555 | 629 | 6540 | 8.31 | 8.67 | 8.31 | +0.36 |
Pt. 4 | 6354 | 1584 | 6220 | 25.08 | 23.00 | 25.08 | -1.92 |
Pt. 5 | 4522 | 602 | 4500 | 12.00 | 15.50 | 12.00 | -3.50 |