Table 2.
Intravascular Ultrasound Characteristics of the Coronary Artery
| Women with atherosclerosis | Women without atherosclerosis | |||||
|---|---|---|---|---|---|---|
| N=73 | N=19 | |||||
| Variable | Mean | SD | Range | Mean | SD | Range |
| Pullback length (mm) | 37.8 | 15.3 | 7.0 – 72.0 | 28.7 | 15.0 | 3.0 – 49.0 |
| Atheroma volume (mm3) | 3.5 | 1.5 | 0.8 – 7.6 | 1.9 | 1.2 | 0.4 – 6.1 |
| Lumen volume (mm3) | 9.5 | 3.1 | 4.2 – 19.8 | 9.5 | 4.2 | 4.5 – 21.8 |
| Vessel volume (mm3) | 13.0 | 3.8 | 6.2 – 27.2 | 11.4 | 5.2 | 4.9 – 27.9 |
| Percent atheroma volume | 27.2 | 8.4 | 6.8 – 48.9 | 16.1 | 5.8 | 3.8 – 26.5 |
| Mean maximal plaque thickness (mm) | 0.53 | 0.22 | 0.21 – 1.27 | 0.26 | 0.07 | 0.11 – 0.38 |
| Percent vessel involvement | 40.1 | 29.5 | 2.1 – 100.0 | 0.0 | - | - |
| Variable | N | % | ||||
| Vessel involvement | ||||||
| <30% | 34 | 47% | ||||
| 30%–50% | 15 | 19% | ||||
| >50% | 23 | 34% | ||||
SD indicates standard deviation.