Related Experiment Video
Updated: Jul 12, 2026
Simultaneous fMRI and Electrophysiology in the Rodent Brain
Published on: August 19, 2010
Cranial MRI of small rodents using a clinical MR scanner
Jennifer Linn1, Friederike Schwarz, Christian Schichor
1Department of Neuroradiology, University Hospital Munich, Grosshadern, Marchioninistrasse 15, 81377 Munich, Germany. linn@nrad.de
Abstract:
Increasing numbers of small animal models are in use in the field of neuroscience research. Magnetic resonance imaging (MRI) provides an excellent method for non-invasive imaging of the brain. Using three-dimensional (3D) MR sequences allows lesion volumetry, e.g. for the quantification of tumor size. Specialized small-bore animal MRI scanners are available for high-resolution MRI of small rodents' brain, but major drawbacks of this dedicated equipment are its high costs and thus its limited availability. Therefore, more and more research groups use clinical MR scanners for imaging small animal models. But to achieve a reasonable spatial resolution at an acceptable signal-to-noise ratio with these scanners, some requirements concerning sequence parameters have to be matched. Thus, the aim of this paper was to present in detail a method how to perform MRI of small rodents brain using a standard clinical 1.5 T scanner and clinically available radio frequency coils to keep material costs low and to circumvent the development of custom-made coils.
Insights
This study presents a cost-effective method for high-resolution magnetic resonance imaging (MRI) of small rodent brains using standard clinical scanners. This approach enhances accessibility for neuroscience research, enabling detailed brain imaging without specialized equipment.
Area of Science:
- Neuroscience
- Medical Imaging
- Biomedical Engineering
Background:
- Small animal models are crucial in neuroscience research for studying brain function and disease.
- Magnetic Resonance Imaging (MRI) is a key non-invasive technique for brain imaging, enabling lesion volumetry and tumor size quantification.
- Specialized small-bore animal MRI scanners offer high resolution but are prohibitively expensive and scarce.
Purpose of the Study:
- To detail a method for performing high-resolution MRI of small rodent brains using standard clinical 1.5 T scanners.
- To enable cost-effective brain imaging by utilizing clinically available radiofrequency coils.
- To overcome the limitations of specialized animal MRI systems, increasing accessibility for research groups.
Main Methods:
- Utilized a standard clinical 1.5 T MRI scanner.
- Employed clinically available radiofrequency coils, avoiding custom-made solutions.
- Optimized sequence parameters to achieve adequate spatial resolution and signal-to-noise ratio for small animal brain imaging.
Main Results:
- Successfully demonstrated a method for obtaining high-resolution MRI of small rodent brains on a clinical scanner.
- Achieved reasonable spatial resolution and signal-to-noise ratio suitable for research applications.
- Validated a cost-effective approach for small animal brain imaging, reducing reliance on expensive dedicated equipment.
Conclusions:
- Standard clinical 1.5 T MRI scanners can be effectively utilized for high-resolution imaging of small rodent brains.
- This method significantly lowers the cost and increases the accessibility of advanced brain imaging for neuroscience research.
- The presented technique provides a practical alternative for research groups lacking access to specialized small animal MRI facilities.
