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MRM Microcoil Performance Calibration and Usage Demonstrated on Medicago truncatula Roots at 22 T
Published on: January 16, 2021
Microcoil-based MRI: feasibility study and cell culture applications using a conventional animal system
Hans Weber1, Nicoleta Baxan, Dominik Paul
1Medical Physics, Department of Radiology, University Medical Center Freiburg, Breisacher Str. 60a, 79106, Freiburg, Germany. hans.weber@uniklinik-freiburg.de
Magma (New York, N.Y.)
|February 19, 2011
Summary
This study shows that magnetic resonance (MR) microscopy is feasible on standard animal MRI systems with minor modifications. This cost-effective approach enables high-resolution imaging, including living cells, for broader biomedical research applications.
Area of Science:
- Biomedical Imaging
- Magnetic Resonance Imaging
Background:
- Conventional animal MRI systems can be adapted for advanced imaging.
- High-resolution MR microscopy is typically limited by specialized hardware.
Purpose of the Study:
- To demonstrate the feasibility of MR microimaging on a standard 9.4 T horizontal animal MRI system.
- To adapt existing systems with minimal modifications and commercially available microcoils.
- To make high-resolution MR microscopy accessible to a wider research community.
Main Methods:
- Utilized commercially available RF microcoils with a custom probehead.
- Implemented minor modifications to the transmit chain and acquisition sequences.
- Analyzed phantom images and characterized microcoil performance (sensitive volume, SNR).
Main Results:
- Achieved routine acquisition of high-quality MR images.
- Obtained high signal-to-noise ratio (SNR) and isotropic resolutions up to 10 μm.
- Demonstrated successful high-resolution imaging of living, MnCl(2)-labeled glioma cells.
Conclusions:
- MR microscopy is achievable at low cost using widespread animal MR imaging systems.
- The technique offers a promising, accessible tool for biomedical research.
- Successful imaging of living cells highlights its potential for in-vivo studies.
