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Updated: Jun 23, 2026
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High-Resolution Cardiac Positron Emission Tomography/Computed Tomography for Small Animals
Published on: December 16, 2022
Recent advances in small-animal cardiovascular imaging
Benjamin M W Tsui1, Dara L Kraitchman
1Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA. tsui@jhmi.edu
Summary
Small animal imaging, using mice and rats, is crucial for cardiovascular research. Despite challenges like small heart size, it enables noninvasive evaluation of genetic mutations and therapies.
Area of Science:
- Cardiovascular Imaging
- Small Animal Models
- Molecular Imaging
Background:
- Gene knockout and transgenic technologies have made small animals, like mice and rats, essential for cardiovascular imaging research.
- Imaging allows for serial evaluation of genetic mutations and pharmacological therapies.
- It serves as a noninvasive tool for screening cardiovascular phenotypes and assessing therapeutic efficacy.
Purpose of the Study:
- To highlight the utility of small animal imaging in cardiovascular research.
- To discuss the applications of imaging in evaluating genetic and pharmacologic interventions.
- To acknowledge the challenges presented by small animal models in cardiovascular imaging.
Main Methods:
- Utilizing small animal models (mice, rats) for cardiovascular studies.
- Employing imaging techniques for serial evaluation and noninvasive screening.
- Measuring key cardiovascular outcomes like ejection fraction, ventricular mass, and volume.
Main Results:
- Small animal imaging provides a method for serial evaluation of genetic mutations and therapies.
- Noninvasive screening of cardiovascular phenotypes is achievable.
- Key therapeutic efficacy measures can be determined noninvasively.
- Development and testing of novel molecular imaging probes are facilitated.
Conclusions:
- Small animal imaging is a valuable tool in cardiovascular research, despite technical challenges.
- It enables comprehensive, noninvasive assessment of cardiovascular health and therapeutic responses.
- Further development in imaging techniques is needed to overcome challenges in murine models.
