Browsing by Author "Roujol, Sébastien"
Now showing items 1-6 of 6
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Accelerated free breathing ECG triggered contrast enhanced pulmonary vein magnetic resonance angiography using compressed sensing
Roujol, Sébastien; Foppa, Murilo; Basha, Tamer A; Akçakaya, Mehmet; Kissinger, Kraig V; Goddu, Beth; Berg, Sophie; Nezafat, Reza (BioMed Central, 2014)Background: To investigate the feasibility of accelerated electrocardiogram (ECG)-triggered contrast enhanced pulmonary vein magnetic resonance angiography (CE-PV MRA) with isotropic spatial resolution using compressed ... -
Characterization of Respiratory and Cardiac Motion from Electro-Anatomical Mapping Data for Improved Fusion of MRI to Left Ventricular Electrograms
Roujol, Sébastien; Anter, Elad; Josephson, Mark E.; Nezafat, Reza (Public Library of Science, 2013)Accurate fusion of late gadolinium enhancement magnetic resonance imaging (MRI) and electro-anatomical voltage mapping (EAM) is required to evaluate the potential of MRI to identify the substrate of ventricular tachycardia. ... -
Feasibility of real time integration of high-resolution scar images with invasive electrograms in electro-anatomical mapping system in patients undergoing ventricular tachycardia ablation
Roujol, Sebastien; Basha, Tamer; Tan, Alex Y; Anter, Elad; Buxton, Alfred E; Josephson, Mark; Nezafat, Reza (BioMed Central, 2013) -
Impact of motion correction on reproducibility and spatial variability of quantitative myocardial T2 mapping
Roujol, Sébastien; Basha, Tamer A.; Weingärtner, Sebastian; Akçakaya, Mehmet; Berg, Sophie; Manning, Warren J.; Nezafat, Reza (BioMed Central, 2015)Background: To evaluate and quantify the impact of a novel image-based motion correction technique in myocardial T2 mapping in terms of measurement reproducibility and spatial variability. Methods: Twelve healthy adult ... -
Towards cardiac and respiratory motion characterization from electrophysiology data for improved real time MR-integration
Roujol, Sebastien; Tan, Alexandre Korarithi; Anter, Elad; Josephson, Mark; Nezafat, Reza (BioMed Central, 2013)Electro-anatomical voltage mapping (EAM) is an invasive technique used for the identification of ventricular tachycardia (VT) substrate and subsequent guidance of VT ablation [1]. The mapping of VT substrate is very time ... -
Whole Heart Coronary Imaging with Flexible Acquisition Window and Trigger Delay
Kawaji, Keigo; Foppa, Murilo; Roujol, Sébastien; Akçakaya, Mehmet; Nezafat, Reza (Public Library of Science, 2015)Coronary magnetic resonance imaging (MRI) requires a correctly timed trigger delay derived from a scout cine scan to synchronize k-space acquisition with the quiescent period of the cardiac cycle. However, heart rate changes ...