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Measurement of the Hepatic Venous Pressure Gradient and Transjugular Liver Biopsy
07:10

Measurement of the Hepatic Venous Pressure Gradient and Transjugular Liver Biopsy

Published on: June 18, 2020

Hepatic vein transit times using a microbubble agent can predict disease severity non-invasively in patients with

A K P Lim1, S D Taylor-Robinson, N Patel

  • 1Imaging Sciences Department, MRC Clinical Services Centre, Faculty of Medicine, Imperial College, The Robert Steiner MR Unit, Hammersmith Hospital, Du Cane Road, London W12 0NN, UK. a.lim@ic.co.uk

Gut
|December 14, 2004
PubMed

Insights

Hepatic vein transit times (HVTT) using ultrasound contrast effectively assess hepatitis C liver disease severity. This non-invasive method differentiates mild hepatitis from cirrhosis, offering a potential alternative to biopsy.

Area of Science:

  • Hepatology
  • Diagnostic Imaging
  • Ultrasound Contrast Agents

Background:

  • Non-invasive assessment of diffuse liver disease severity is crucial.
  • Hepatitis C virus (HCV) infection causes significant liver damage.
  • Current diagnostic methods may be invasive or lack precision.

Purpose of the Study:

  • To evaluate hepatic vein transit times (HVTT) for grading and staging diffuse liver disease.
  • To assess the utility of ultrasound microbubble contrast agents in HCV patients.
  • To determine if HVTT can differentiate between stages of liver disease.

Main Methods:

  • Prospective study of 85 treatment-naive HCV patients with biopsy-proven liver disease.
  • Ultrasound microbubble contrast agent (Levovist) injected intravenously.
  • Hepatic vein transit times (HVTT) measured using spectral Doppler; carotid delay times (CDT) also calculated.

Main Results:

  • HVTT showed a monotonic decrease with increasing liver disease severity (mild hepatitis, moderate/severe hepatitis, cirrhosis).
  • Significant differences in HVTT and CDT were observed between disease groups (p<0.001).
  • HVTT demonstrated 100% sensitivity and 80% specificity for diagnosing cirrhosis.

Conclusions:

  • HVTT using ultrasound contrast effectively assesses HCV-related liver disease severity.
  • HVTT clearly differentiates between mild hepatitis and cirrhosis.
  • HVTT is a valuable, potentially non-invasive tool that may complement or replace liver biopsy in certain cases.
Abstract

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