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Related Experiment Video

Updated: Jun 21, 2026

MRM Microcoil Performance Calibration and Usage Demonstrated on Medicago truncatula Roots at 22 T

MRM Microcoil Performance Calibration and Usage Demonstrated on Medicago truncatula Roots at 22 T

Published on: January 16, 2021

MREIT with SENSE acceleration using a dedicated RF coil design.

L Tugan Muftuler¹, Gang Chen, Mark J Hamamura

¹Tu & Yuen Center for Functional Onco-Imaging, University of California, Irvine, Irvine, CA 92697-5020, USA. tugan.muftuler@uci.edu

Physiological Measurement

|July 31, 2009

Summary

We developed a faster Magnetic Resonance Electrical Impedance Tomography (MREIT) method using SENSE acceleration and a novel RF coil. This allows for improved spatial resolution without longer scan times, enabling clearer conductivity map reconstruction.

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Last Updated: Jun 21, 2026

MRM Microcoil Performance Calibration and Usage Demonstrated on Medicago truncatula Roots at 22 T

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Published on: January 16, 2021

Rapid Scan Electron Paramagnetic Resonance Opens New Avenues for Imaging Physiologically Important Parameters In Vivo

Rapid Scan Electron Paramagnetic Resonance Opens New Avenues for Imaging Physiologically Important Parameters In Vivo

Published on: September 26, 2016

Area of Science:

Biomedical Engineering
Medical Imaging
Electrical Impedance Tomography

Background:

Magnetic Resonance Electrical Impedance Tomography (MREIT) offers valuable conductivity imaging but is limited by data acquisition speed.
Faster MREIT is crucial for improved spatial resolution and clinical applicability.
Existing RF coil designs may not be optimal for integrating MREIT electrodes and achieving high signal-to-noise ratio (SNR).

Purpose of the Study:

To adapt SENSE acceleration for faster MREIT data acquisition.
To design and optimize a dedicated eight-channel phased array RF coil for MREIT.
To evaluate the performance of SENSE-accelerated MREIT with the new coil.

Main Methods:

Adapted SENSE acceleration for MREIT acquisition.
Designed and optimized an eight-channel phased array RF coil with quasi-intrinsic decoupling and restricted geometry optimization.
Investigated the impact of animal size variability on coil optimization.
Acquired phantom data with and without SENSE acceleration (3x) using the dedicated coil and a birdcage coil.

Main Results:

The optimized eight-channel coil provided approximately three times higher SNR compared to a birdcage coil.
SENSE acceleration (3x) with the new coil yielded superior SNR compared to non-accelerated data from volume coils.
Conductivity maps were successfully reconstructed from SENSE-accelerated MREIT data.
No discernible artifacts were observed in accelerated data compared to non-accelerated data.

Conclusions:

SENSE acceleration is effectively adapted for MREIT, enabling faster data acquisition and improved spatial resolution.
The novel eight-channel phased array RF coil significantly enhances SNR for MREIT applications.
Accelerated MREIT with the optimized coil allows for artifact-free conductivity map reconstruction, advancing MREIT capabilities.