Table 5.
Contrast to noise ratio of electron beam computed tomographic coronary angiography (EBCTA) and multislice computed tomographic coronary angiography (MSCTA)
| Segment | EBCTA | MSCTA |
| 1 | 7.6 (2.3) | 11.6 (2.1) |
| 2 | 6.6 (3.0) | 8.7 (2.3) |
| 3 | 4.9 (3.3) | 8.2 (2.9) |
| 5 | 8.6 (2.2) | 12.6 (3.8) |
| 6 | 7.7 (2.3) | 10.8 (3.9) |
| 7 | 6.6 (2.6) | 9.7 (2.6) |
| 8 | 5.0 (2.8) | 6.7 (3.2) |
| 11 | 6.4 (2.2) | 9.7 (4.2) |
| 11 distal | 5.0 (2.0) | 6.2 (3.8) |
| Mean CNR | 6.5 (2.3) | 9.4 (4.9) |
Values are mean (SD).
The differences between the two groups are significant in each segment (p value at least <0.05).
CNR, contrast to noise ratio.