Table 1.
The liver attenuation measurements of center-ROI and mean periphery-ROI for different sequence protocol
| center-ROI | periphery-ROI | Manual | |||||
|---|---|---|---|---|---|---|---|
| Series 1 | Series 2 | Series 3 | Series 1 | Series 2 | Series 3 | Series 1 | |
| Mean, HU | 56.6 | 56.7 | 56.9 | 55.9 | 56.7 | 56.9 | 55.9 |
| SD, HU | 9.3 | 9.3 | 9.2 | 9.4 | 9.3 | 9.2 | 10.4 |
| Median, HU | 58.5 | 58.6 | 58.6 | 57.8 | 58.6 | 58.6 | 58.0 |
| Minimum, HU | 7.2 | 8.7 | 8.5 | 6.2 | 8.7 | 8.5 | 4.3 |
| Maximum, HU | 88.9 | 89.9 | 97.7 | 84.3 | 89.9 | 97.7 | 94.9 |
| 25 percent, HU | 53.9 | 54.1 | 54.2 | 52.4 | 54.1 | 54.2 | 52.3 |
| 75 percent HU | 62.5 | 62.3 | 62.5 | 61.6 | 62.3 | 62.5 | 62.5 |
| HU<40, n(%) | 16 (6.4%) | 17 (6.8%) | 14 (5.6%) | 17 (6.8%) | 16 (6.4%) | 19 (7.5%) | 19 (7.5%) |
*
Scan Series 1: 2.5 mm, 50 FOV; Scan Series 2: 2.5 mm, 35 FOV; Scan Series 3: 1.25 mm, 35 FOV