Table 2 Effect of examination side (left and right) on B-mode and Doppler ultrasonographic measurements of jugular vein in donkeys (Equus asinus, n = 20)
From: B-mode and color Doppler ultrasonography of normal external jugular vein in donkeys (Equus asinus)
B-mode scans | Doppler scans | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Longitudinal views | Transverse views | Blood velocity (cm/sec) | Blood flow rate (ml/min) | Congestion index (cm.sec) | ||||||||
Depth (mm) | SWTa (mm) | DWTb (mm) | Diameter (mm) | Depth (mm) | SWTa (mm) | DWTb (mm) | Diameter (cm) | Area (cm2) | ||||
Left (n = 20) | 5.3 ± 0.2 | 0.58 ± 0.02 | 0.60 ± 0.02 | 5.9 ± 0.3 | 5.5 ± 0.3 | 0.56 ± 0.02 | 0.6 ± 0.02 | 1.1 ± 0.04 | 1.1 ± 0.1 | 10.5 ± 0.2 | 0.67 ± 0.06 | 0.12 ± 0.01 |
Right (n = 20) | 5.0 ± 0.1 | 0.57 ± 0.01 | 0.61 ± 0.01 | 6.0 ± 0.3 | 5.4 ± 0.2 | 0.59 ± 0.01 | 0.6 ± 0.01 | 1.2 ± 0.05 | 1.2 ± 0.1 | 10.4 ± 0.2 | 0.77 ± 0.07 | 0.11 ± 0.01 |
P-value | 0.283 | 0.564 | 0.701 | 0.981 | 0.518 | 0.107 | 0.759 | 0.291 | 0.264 | 0.578 | 0.388 | 0.172 |