Abstract #1979

Age matters: radiofrequency heating of epicardial and endocardial electronic devices in adults and children varies with body size and lead length

Fuchang Jiang¹, Kaylee Henry¹, Bhumi Bhusal², Pia Sanpitak², Gregory Webster³, Andrada Popescu⁴, Giorgio Bonmassar⁵, Christina Laternser⁶, Daniel Kim², and Laleh Golestanirad^1,2

¹Department of Biomedical Engineering, Northwestern University, Evanston, IL, United States, ²Department of Radiology, Northwestern University, Chicago, IL, United States, ³Division of Cardiology, Ann and Robert H. Lurie Children's Hospital of Chicago, Chicago, IL, United States, ⁴Division of Medical Imaging, Ann and Robert H. Lurie Children's Hospital of Chicago, Chicago, IL, United States, ⁵A. A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Boston, MA, United States, ⁶Center for Cardiovascular Innovation, Ann and Robert H. Lurie Children's Hospital of Chicago, Chicago, IL, United States

Synopsis

Keywords: Heart, Safety, ImplantsChildren with congenital heart defects often have life-sustaining indications for an epicardial cardiac implantable electronic device (CIED). However few data exist on endocardial systems in children. Additionally, the FDA has never approved an epicardial system as MRI-Conditional due to limited data on potential heating risk. To provide evidence-based knowledge on RF-induced heating of CIEDs in children and adults with epicardial and endocardial leads of different lengths, we recorded the temperature increase of 120 clinically relevant trajectories positioned into adult and pediatric phantoms. Our results highlight the need for age and device-specific assessments of MRI safety in children with CIEDs.

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