Table 1.
SCCT (Modified AHA) Coronary Artery Segment Number16 | Segment Weighting Factor |
---|---|
1 | 1 |
2 | 1 |
3 | 1 |
4 | 1 |
5 | 5 |
6 | 2.5 |
7 | 1.5 |
8 | 1 |
9 | 1 |
10 | 0.5 |
11 nondominant | 2.5 |
11 dominant | 3.5 |
12 | 1 |
13 nondominant | 1 |
13 dominant | 2 |
14 | 0.5 |
15 | 1 |
16 | 0.5 |
17 | 1 |
18 | 0.5 |
Segment Stenosis Grade | Stenosis Score |
---|---|
1% to 24% | 1 |
25% to 49% | 2 |
50% to 69% | 4 |
70% to 99% | 8 |
100% | 16 |
AHA indicates American Heart Association; SCCT, Society of Cardiovascular Computed Tomography.