Comparison of Portal Vein Doppler Indices and Hepatic Vein Doppler Waveform in Patients with Nonalcoholic Fatty Liver Disease with Healthy Control

How to Cite:Solhjoo E, Mansour-Ghanaei F, Moulaei-Langorudi R, Joukar F. Comparison of Portal Vein Doppler Indices and Hepatic Vein Doppler Waveform in Patients with Nonalcoholic Fatty Liver Disease with Healthy Control. Hepat Mon. 2011;11(9):. doi: https://doi.org/10.5812/kowsar.1735143X.729

Abstract

Background: The purpose of the present study is to investigate the association of nonalcoholic fatty liver disease (NAFLD) with the doppler waveform pattern of hepatic veins and portal vein doppler indices.
Objectives: This assay may be useful in evaluating the natural course of NAFLD and monitor treatment efficacy on follow-up.
Patients and Methods: This case control study was performed in 31 patients with NAFLD and 31 normal healthy adults who served as the control group. The patients presented with elevated liver enzymes levels (ALT/AST) and hyperechogenic livers in the B-mode ultrasonography examination. Eleven patients had a liver biopsy. After an 8-hour fast, B-mode and duplex doppler ultrasonography were performed, and the waveform patterns of the right hepatic vein, portal vein diameter, grade of fatty liver, portal vein pulsatility index (VPI), and mean flow velocity (MFV) were measured.
Results: VPI and MFV values were 0.42 ± 0.92 and 17.27 ± 5.34 cm/second, respectively, in the control group and 0.25 ± 0.50 and 12.82 ± 4.32 cm/second in patients with NAFLD (P < 0.01). The frequency of abnormal hepatic vein doppler waveform patterns (biphasic or monophasic) was significantly higher in patients with NAFLD (55.2%) versus control subjects (3.2%) (P < 0.001). There was no correlation between the degree of fat infiltration and VPI (P = 0.714), MFV (P = 0.911), or hepatic vein waveform pattern (P = 0.197). We found no correlation between liver enzyme levels and MFV or VPI. However, the rate of abnormal hepatic vein was higher in patients with enzyme levels that exceeded twice the normal value (P = 0.05).
Conclusions: Patients with NAFLD have a high rate of abnormal hepatic vein doppler waveform patterns, and decreased VPI and MFV are suggestive of reduced vascular compliance in the liver. Elevated liver enzymes levels do not influence VPI or MFV, but patients with abnormal enzymes have higher rates of abnormal hepatic vein doppler waveform patterns.

Implication for health policy/practice/research/medical education:
This assay can be helpful in diagnosing NAFLD and its effects on liver hemodynamics, evaluating the natural course of NAFLD, and monitoring treatment efficacy on follow-up.
Please cite this paper as:
Solhjoo E , Mansour-Ghanaei F , Moulaei-Langorudi R , Joukar F. Comparison of Portal Vein Doppler Indices and Hepatic Vein Doppler Waveform in Patients with Nonalcoholic Fatty Liver Disease with Healthy Control. Hepat Mon. 2011;11(9):740-4. DOI: 10.5812/kowsar. 1735143X.729

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Author(s):

Ehsan Solhjoo:[PubMed][Scholar]
Fariborz Mansour-Ghanaei:[PubMed][Scholar]
Roghaeyh Moulaei-Langorudi:[PubMed][Scholar]
Farahnaz Joukar:[PubMed][Scholar]

Official Journal of Research Center for Gastroenterology and Liver Diseases

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Comparison of Portal Vein Doppler Indices and Hepatic Vein Doppler Waveform in Patients with Nonalcoholic Fatty Liver Disease with Healthy Control

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