A phantom and animal study of temperature changes during fMRI with intracerebral depth electrodes

Highlights • We investigated radiofrequency-induced tissue heating near intracerebral electrodes. • For the first time reported in vivo temperature variation (simultaneous icEEG/fMRI). • We have also recorded and reported here temperature changes in the phantom at 1.5 T. • Depth electrodes were used...

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Bibliographic Details
Published in:Epilepsy research 2014-01, Vol.108 (1), p.57-65
Main Authors: Ciumas, Carolina, Schaefers, Gregor, Bouvard, Sandrine, Tailhades, Emmeline, Perrin, Emmanuel, Comte, Jean-Christophe, Canet-Soulas, Emmanuelle, Bonnet, Chantal, Ibarrola, Danielle, Polo, Gustavo, Moya, Jose, Beuf, Olivier, Ryvlin, Philippe
Format: Article
Language:English
Subjects:
Animals
Biological and medical sciences
Cerebral Cortex
Cerebral Cortex - metabolism
Electrodes, Implanted
Epilepsy
Female
fMRI
Headache. Facial pains. Syncopes. Epilepsia. Intracranial hypertension. Brain oedema. Cerebral palsy
icEEG
icEEG/fMRI
Life Sciences
Magnetic Resonance Imaging
Magnetic Resonance Imaging - methods
Medical sciences
Nervous system (semeiology, syndromes)
Neurology
Neurons and Cognition
Phantoms, Imaging
Rabbits
RF heating
Temperature
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Description
Summary:Highlights • We investigated radiofrequency-induced tissue heating near intracerebral electrodes. • For the first time reported in vivo temperature variation (simultaneous icEEG/fMRI). • We have also recorded and reported here temperature changes in the phantom at 1.5 T. • Depth electrodes were used to simulate an implantation in patients with epilepsy. • No evidence that fMRI is associated with high radiofrequency-induced heating.
ISSN:0920-1211
1872-6844
DOI:10.1016/j.eplepsyres.2013.10.016