The study aims to assess the right and left atrial electrophysiological substrate in atrial fibrillation patients using the invasive electroanatomic map (basal and with extraestimulus) as well as its correlation with cardiac magnetic resonance and electrocardiographic imaging. The results will also be compared when the patient is in sinus rhythm and atrial fibrillation.
Study Type
OBSERVATIONAL
Enrollment
52
Hospital Gregorio Marañon
Madrid, Barcelona, Spain
Hospital Clinic de Barcelona
Barcelona, Spain
Correlation between conduction velocity and MRI fibrosis.
The conduction velocity in sinusal rhythm and with extra estimuli will be correlated with the MRI late gadolinium enhancement sequence (MRI-LGE).
Time frame: Baseline
Correlation between voltage and MRI fibrosis.
The voltage in sinus rhythm and in atrial fibrillation will be correlated with the MRI-LGE.
Time frame: Baseline
Correlation between electrocardiographic image (ECGi) and MRI-LGE.
The xxx of the ECGi will be correlated with the MRI-LGE.
Time frame: Baseline
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