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Related Experiment Video

Updated: May 27, 2026

Human Fetal Blood Flow Quantification with Magnetic Resonance Imaging and Motion Compensation

Human Fetal Blood Flow Quantification with Magnetic Resonance Imaging and Motion Compensation

Published on: January 7, 2021

A versatile flow phantom for intravoxel incoherent motion MRI.

Gene Y Cho¹, Sungheon Kim, Jens H Jensen

¹Center for Biomedical Imaging, Department of Radiology, New York University School of Medicine, New York, New York 10016-3295, USA. gyc219@nyumc.org

Magnetic Resonance in Medicine

|November 25, 2011

Summary

This study developed a novel flow phantom to test intravoxel incoherent motion (IVIM) MRI. The technique successfully quantified microvascular properties, offering a promising tool for tumor microenvironment research.

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Area of Science:

Medical Imaging
Biophysics
Oncology

Background:

The tumor microenvironment's complexity remains a challenge in cancer research.
Diffusion-weighted MRI is a valuable tool for probing tissue microstructure.
Intravoxel incoherent motion (IVIM) MRI shows promise for assessing the vascular microenvironment.

Purpose of the Study:

To develop and validate a flow phantom for testing IVIM-sensitive MRI sequences.
To optimize IVIM-MRI techniques for characterizing tumor microvascular properties.
To assess the potential of IVIM-MRI in clinical applications for cancer research.

Main Methods:

Construction of a complex flow phantom simulating tumor microenvironment characteristics.
Application of IVIM-sensitive diffusion-weighted MRI sequences on a clinical scanner.
Biexponential fitting of signal decay curves to extract quantitative parameters.

Main Results:

The flow phantom confirmed IVIM's sensitivity to microscopic flow effects.
Quantitative parameters including perfusion fraction, pseudodiffusivity, and diffusivity were successfully extracted.
Parametric maps demonstrated the potential clinical utility of IVIM-sensitive imaging.

Conclusions:

The developed flow phantom is an effective tool for validating and optimizing IVIM-MRI.
IVIM-MRI can provide quantitative surrogate markers for microvascular properties.
This technique holds potential for advancing the understanding and treatment of the tumor microenvironment.