Diagnostic in-bore 12-lead ECGs during adenosine stress perfusion CMR-results from MyoFit46

Abstract

Background: Electrocardiographic (ECG) signals collected inside the magnetic resonance (MR) scanner bore are distorted by field gradient artefacts and the magnetohydrodynamic effect, meaning they are non-diagnostic except for R-peak detection. We implemented and validated a novel hardware/software system that collects diagnostic 12-lead ECGs inside the 3 Tesla(T) MR scanner bore and is capable of measuring ischaemic changes during adenosine infusion.