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Simultaneous PET-MRI: a new approach for functional and morphological imaging

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http://pubman.mpdl.mpg.de/cone/persons/resource/persons84257

Wehrl HF, Newport DF, Catana C, Siegel SB, Becker M, Thielscher,  A
Department High-Field Magnetic Resonance, Max Planck Institute for Biological Cybernetics, Max Planck Society;

http://pubman.mpdl.mpg.de/cone/persons/resource/persons84269

Kneilling M, Lichy MP, Eichner M, Klingel K, Reischl G, Widmaier S, Röcken M, Nutt RE, Machulla H-J, Uludag,  K
Department High-Field Magnetic Resonance, Max Planck Institute for Biological Cybernetics, Max Planck Society;

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Citation

Judenhofer, M., Wehrl HF, Newport DF, Catana C, Siegel SB, Becker M, Thielscher, A., Kneilling M, Lichy MP, Eichner M, Klingel K, Reischl G, Widmaier S, Röcken M, Nutt RE, Machulla H-J, Uludag, K., Cherry SR, Claussen, C., & Pichler, B. (2008). Simultaneous PET-MRI: a new approach for functional and morphological imaging. Nature Medicine, 14(4), 459-465. doi:10.1038/nm1700.


Cite as: http://hdl.handle.net/11858/00-001M-0000-0013-C9D1-3
Abstract
Noninvasive imaging at the molecular level is an emerging field in biomedical research. This paper introduces a new technology synergizing two leading imaging methodologies: positron emission tomography (PET) and magnetic resonance imaging (MRI). Although the value of PET lies in its high-sensitivity tracking of biomarkers in vivo, it lacks resolving morphology. MRI has lower sensitivity, but produces high soft-tissue contrast and provides spectroscopic information and functional MRI (fMRI). We have developed a three-dimensional animal PET scanner that is built into a 7-T MRI. Our evaluations show that both modalities preserve their functionality, even when operated isochronously. With this combined imaging system, we simultaneously acquired functional and morphological PET-MRI data from living mice. PET-MRI provides a powerful tool for studying biology and pathology in preclinical research and has great potential for clinical applications. Combining fMRI and spectroscopy with PET paves the way for a new perspective in molecular imaging.