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Related Experiment Video

Updated: Nov 16, 2025

Visualization and Analysis of Blood Flow and Oxygen Consumption in Hepatic Microcirculation: Application to an Acute Hepatitis Model

Visualization and Analysis of Blood Flow and Oxygen Consumption in Hepatic Microcirculation: Application to an Acute Hepatitis Model

Published on: August 4, 2012

A highly parallel simulation of patient-specific hepatic flows.

Zeng Lin^1,2, Rongliang Chen^1,2, Beibei Gao³

¹Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China.

International Journal for Numerical Methods in Biomedical Engineering

|February 20, 2021

Summary

This study presents a fast, parallel computational method for simulating blood flow in patient-specific liver vessels. This approach enhances accuracy for diagnosing liver diseases and assessing portal hypertension.

Keywords:

domain decomposition finite element hepatectomys hepatic hemodynamics parallel computing patient-specific artery-vein

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Area of Science:

Computational fluid dynamics
Medical imaging
Hepatology

Background:

Computational hemodynamics aids liver disease diagnosis and treatment planning.
Current methods face challenges with computational time and accuracy, especially with complex geometries like arterial plaque.
Simulating full 3D patient-specific hepatic vasculature is computationally intensive.

Purpose of the Study:

To develop and investigate a highly parallel method for simulating transient incompressible Navier-Stokes equations.
To accurately model blood flow in patient-specific 3D hepatic artery, portal vein, and hepatic vein.
To assess the robustness and scalability of the developed algorithm.

Main Methods:

Implementation of a highly parallel algorithm for transient incompressible Navier-Stokes equations.
Simulation of blood flow in full 3D patient-specific hepatic vasculature.
Application to a patient with hepatectomy, including calculation of S (PPG).

Main Results:

Achieved 83% parallel efficiency for a 7 million element problem on over 1000 cores.
Demonstrated accurate simulation of blood flow in complex patient-specific liver vasculature.
Enabled direct estimation of S (PPG) for portal hypertension assessment.

Conclusions:

The developed parallel method offers an accurate and efficient approach for computational hemodynamics in liver diseases.
Simulating all hepatic vessels provides a direct and reliable method for portal hypertension assessment.
The algorithm exhibits excellent scalability and robustness for clinical applications.