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TEP/IRM hybride en neuro-imagerie

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Published in Médecine nucléaire. 2013, vol. 37, no. 10-11, p. 561-566
Abstract The hybrid Positron Emission Tomography/Magnetic Resonance Imaging (PET/MRI) is a newly available imaging modality combining the molecular and metabolic PET information with the morphological and functional data provided by MRI. Integrated PET/MRI tomographs were conceived in analogy to the current PET/Computed Tomography (PET/CT) technology, with specific properties linked to the intrinsic differences of MRI and CT imaging. In the field of neuro-imaging, in particular, MRI provides a larger panel of information, as compared with CT, and is already systematically fused and used as a support for PET images for diagnostic and research purposes. We summarize here our current experience with the first integrated PET/MRI tomograph installed in Switzerland, concerning specifically three clinical applications: brain tumors characterization, the diagnosis of neurodegenerative dementias and the presurgical evaluation of pharmaco-resistant epilepsy. With this sequential tomograph, we could combine the full range of diagnostic MR sequences (including diffusion tensor imaging, tractography, spectroscopy, functional MR) with PET imaging of brain glucose metabolism (by 18F-Fluorodeoxyglucose–FDG) and of amino acid transport (by 18F-Fluoroethyltyrosine–FET). We also summarize the main results obtained in neuro-imaging by the different groups working with these new hybrid tomographs. These data show that PET/MRI, acquired in a single imaging session, may represent the modality of choice for neuro-imaging.
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Research groups Imagerie Médicale (TEP et TEMP) (542)
Démence du sujet âgé, troubles cognitifs, la symptomatologie cognitive (577)
Epilepsie et Chirurgie (149)
Laboratoire de neuroimagerie et de traceurs moléculaires innovants (984)
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GARIBOTTO, Valentina et al. TEP/IRM hybride en neuro-imagerie. In: Médecine nucléaire, 2013, vol. 37, n° 10-11, p. 561-566. https://archive-ouverte.unige.ch/unige:33865

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Deposited on : 2014-01-29

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