Keywords: Arrhythmia, Arrhythmia, MR-compatible ECG, ECG artifacts, CIED, MHD, magnetohydrodynamic effect
Motivation: Recording diagnostic 12-lead ECGs during CMR is challenging. Advancements of MR-compatible 12-lead ECG systems facilitate improved monitoring and prospect of simultaneous ECG recording and image acquisition, yet real-world data are lacking.
Goal(s): We assess the feasibility and diagnostic quality of continuous 12-lead ECGs in two CIED patients during 1.5T CMR.
Approach: Continuous 12-lead ECG recordings were obtained in one pacemaker and one ICD patient during 1.5T CMR, assessing signal quality and ECG SNR fluctuations across different sequences.
Results: Clinically useful ECGs were obtained despite gradient-induced noise reflected in the drop in SNR on the ECG, indicating sequence-specific filtering could enhance MR-compatible ECG performance.
Impact: This pilot study presents the first real-world clinical application of MR-compatible 12-lead ECG for routine CIED patient monitoring and highlights the need for tailored filtering solutions to mitigate MRI sequence-induced noise and improve patient monitoring during CMR.
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