Table 1.
Comparison of Doppler ultrasound characteristics of cirrhotic subjects and controls
| Variables | Cirrhotics (n=60) | Controls (n=60) | Statistics | df | P |
|---|---|---|---|---|---|
| HVW, n (%) | |||||
| Triphasic | 14 (23.3) | 60 (100) | 86.931 | 2 | <0.001* |
| Biphasic | 20 (33.3) | 0 | |||
| Monophasic | 26 (43.4) | 0 | |||
| PVD (cm) | |||||
| Mean±SD | 1.30±0.25 | 0.94±0.18 | 9.319 | 118 | <0.001# |
| Range | 0.79-1.79 | 0.57-1.36 | |||
| n (%) | |||||
| Diameter <1.30 | 27 (45.0) | 58 (96.7) | 38.763 | 1 | <0.001* |
| Diameter ≥1.30 | 33 (55.0) | 2 (3.3) | |||
| Portal vein velocity (cm/s) | |||||
| Mean±SD | 22.8±10.4 | 33.6±11.1 | -5.530 | 118 | <0.001# |
| Range | 0.0-44.0 | 15.3-70.2 | |||
| n (%) | |||||
| Velocity ≥15 | 46 (76.7) | 60 (100) | 15.894 | 1 | <0.001* |
| Velocity <15 | 14 (23.3) | 0 (0.00) |
*Chi-square/Fisher’s exact test statistic was used to compare proportions, #Independent samples t-test was used to compare means. PVD: Portal vein diameter, SD: Standard deviation, HVW: Hepatic vein waveform