In vivo evaluation of simultaneous MR-Electrophysiology in large animal model.
Delphine Elbes 1 , Julie Magat 1 , Assaf Govari 2 , Yaron Ephrath 2 , Delphine Vieillot 3 , Christopher Beeckler 2 , Pierre Jais 1 , and Bruno Quesson 1
CRCTB/IHU LIRYC, University of Bordeaux,
Pessac, Gironde, France,
University of Bordeaux, Pessac, Gironde, France
Cardiac electrical dysfunction can be assessed by
mini-invasive electrophysiological (EP) mapping. Being
able to collect electrical data simultaneously to MR
acquisition would simplify the interventional procedure,
allow for reduction of examination duration for the
patients and clinicians, and reduce registration errors.
This study presents simultaneous MR-EP using a 10 poles,
circular, EP catheter. Evaluation of the
MR-compatibility is presented, together with
simultaneous MR-EP measurements obtained in vivo on a
large animal model. The electrograms obtained in the MR
scanner operating at 1.5 T were compared to measurement
performed under identical conditions in the adjacent
catheter lab under X-Ray fluoroscopy.
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