EuroCMR 2019: safety of CMR in patients with implantable cardiac devices


  • Mary Corcoran
  • Univadis Medical News
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New research suggests that cardiac magnetic resonance imaging (CMR) can be safely performed in patients with implantable cardioverter-defibrillators (ICCD) which are compatible and non-compatible with magnetic resonance imaging (MRI). 

As part of a new study, researchers estimated the safety of CMR in 92 patients with implantable cardiac devices (ICD) which were either MRI compatible (n=50) or non-compatible devices (n=42). The ICD was re-programmed for the duration of the MRI examination according to the 2013 European Society of Cardiology guidelines, and baseline settings were restored after the CMR. 

ICD parameters were checked before, immediately after and 30 days after CMR. Patient safety was monitored by pacing impedance, defibrillation impedance, pacing threshold and sensitivity of the detection of R wave (sensing amplitude). 

The authors reported that there was no significant difference for both MRI-compatible and MRI-non-compatible devices in terms of parameters measured before, immediately after and 30 days after CMR. Furthermore, no device-related adverse events were documented during CMR. 

“With appropriate precautions, CMR may be performed safely in patients with either compatible or non-compatible devices,” they concluded. 

The research was presented at EuroCMR 2019 in Italy at the weekend.