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Updated: Jul 3, 2026
10:46
MRI and PET in Mouse Models of Myocardial Infarction
Published on: December 19, 2013
Multimodal imaging approaches: PET/CT and PET/MRI.
Bernd J Pichler1, Martin S Judenhofer, Christina Pfannenberg
1Laboratory for Preclinical Imaging and Imaging Technology, University of Tübingen - Department of Radiology, Röntgenweg 13, 72076, Tübingen, Germany. bernd.pichler@med.uni-tuebingen.de
Handbook of Experimental Pharmacology
|July 16, 2008
Summary
Positron Emission Tomography/Computed Tomography (PET/CT) offers combined imaging but has limitations. Integrating PET with Magnetic Resonance Imaging (PET/MRI) enables simultaneous acquisition, improving soft tissue contrast and reducing motion artifacts for advanced diagnostics.
Area of Science:
- Medical Imaging
- Radiology
- Biomedical Engineering
Background:
- Positron Emission Tomography/Computed Tomography (PET/CT) combines anatomical and functional imaging for clinical and preclinical research.
- PET/CT provides valuable diagnostic insights but faces limitations including poor soft tissue contrast from CT and radiation exposure.
- Sequential data acquisition in PET/CT leads to motion artifacts due to patient movement and respiration.
Observation:
- Current PET/CT technology has inherent limitations in soft tissue contrast and radiation dose.
- The fixed, back-to-back configuration of PET and CT scanners prevents simultaneous data acquisition.
- Temporal mismatches between PET and CT scans introduce image artifacts, compromising diagnostic accuracy.
Findings:
- Integrating Positron Emission Tomography (PET) detectors into Magnetic Resonance Imaging (MRI) scanners allows for simultaneous data acquisition.
- PET/MRI offers combined functional and morphological imaging with superior soft tissue contrast and spatial resolution.
- Simultaneous acquisition in PET/MRI minimizes motion artifacts and enables accurate image fusion.
Implications:
- PET/MRI holds significant potential for enhanced clinical and preclinical imaging applications.
- The multi-functional capabilities of PET/MRI, including Blood Oxygenation Level-Dependent (BOLD) imaging, offer deeper physiological insights.
- Early prototype experiments demonstrate the promising future of PET/MRI as an advanced diagnostic and research tool.
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