Qualitative hepatic venous Doppler sonography versus portal flowmetry in predicting the severity of esophageal varices in hepatitis C cirrhosis.

MR-based Measurements of Portal Vein Flow and Liver Stiffness for Predicting Gastroesophageal Varices

“…Some reports have suggested that PV ‰ow volume calculated by PC-MRI or by Doppler ultrasound is not a useful predictor of advanced GEV, 27,29 and our data conˆrmed this. PV ‰ow volume did not diŠer signiˆcantly between patients with CLD and controls.…”

“…Previous Doppler ultrasound-based studies have found no signiˆcant diŠerence in V PV among variceal grades (e.g., small vs. large varices or F1 vs. F2 vs. F3 varices). 29,32 We speculate this discrepant nding is due to the diŠerent precision of the 2 measurement modalities. Doppler ultrasound can measure ‰ow in the PV and may be cheaper and more widely available than PC-MRI.…”

Association between duplex Doppler sonographic flow pattern in right hepatic vein and various liver diseases

“…8 In line with this, a higher incidence of esophageal varices has been reported in cirrhotic patients with a flat hepatic vein waveform. 18 In another study, a damped waveform in hepatic veins was associated with focal hepatic vein stenoses, which can occur in diffuse liver disease 17,19 and in metastatic liver disease. 20 Other groups reported a damped Doppler waveform in hepatic veins in patients with Budd-Chiari syndrome.…”

Quantitative Doppler evaluation of the splenoportal venous system in various stages of cirrhosis: Differences between right and left portal veins

“…In addition to technical factors, some physiologic factors, such as patient position, exercise status, phase of respiration, and fasting state could lead to variations in results. 18,23 To prevent these potential sources of error, we followed a rigorous evaluation protocol and used the same equipment for all participants. Since the diameter-measurement techniques used in the calculation of blood flow could lead to errors, we used a method similar to that of Walsh et al 13 Most authors 14,18,19,[24][25][26][27] have measured the diameter of the PV assuming the vein to be circular and have used the formula d 2 /4.…”