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Approaches for the optimization of MR protocols in clinical hybrid PET/MRI studies

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Published in Magnetic Resonance Materials in Physics, Biology and Medicine. 2013, vol. 26, no. 1, p. 57-69
Collection Open Access - Licence nationale Springer
Abstract Magnetic resonance imaging (MRI) is the examination method of choice for the diagnosis of a variety of diseases. MRI allows us to obtain not only anatomical information but also identification of physiological and functional parameters such as networks in the brain and tumor cellularity, which plays an increasing role in oncologic imaging, as well as blood flow and tissue perfusion. However, in many cases such as in epilepsy, degenerative neurological diseases and oncological processes, additional metabolic and molecular information obtained by PET can provide essential complementary information for better diagnosis. The combined information obtained from MRI and PET acquired in a single imaging session allows a more accurate localization of pathological findings and better assessment of the underlying physiopathology, thus providing a more powerful diagnostic tool. Two hundred and twenty-one patients were scanned from April 2011 to January 2012 on a Philips Ingenuity TF PET/MRI system. The purpose of this review article is to provide an overview of the techniques used for the optimization of different protocols performed in our hospital by specialists in the following fields: neuroradiology, head and neck, breast, and prostate imaging. This paper also discusses the different problems encountered, such as the length of studies, motion artifacts, and accuracy of image fusion including physical and technical aspects, and the proposed solutions.
PMID: 23008016
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Research groups Imagerie cardiaque fonctionnelle (541)
Groupe Becker Minerva (imagerie ORL) (683)
Ischémie cérébrale et connectivité (801)
Laboratoire de neuroimagerie et de traceurs moléculaires innovants (984)
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VARGAS GOMEZ, Maria Isabel et al. Approaches for the optimization of MR protocols in clinical hybrid PET/MRI studies. In: Magma: Magnetic Resonance Materials in Physics, Biology and Medicine, 2013, vol. 26, n° 1, p. 57-69. doi: 10.1007/s10334-012-0340-9 https://archive-ouverte.unige.ch/unige:28827

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Deposited on : 2013-07-09

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