Abstract #0178

An Implant-Friendly MRI Coil for Imaging of Children with Non-MR-Conditional Cardiac Implantable Electronic Devices

Fuchang Jiang¹, Bhumi Bhusal², Licia Merkelbach³, Sam-Luca Hansen³, Gregory Webster⁴, Giorgio Bonmassar⁵, Boris Keil^3,6, and Laleh Golestanirad^1,2

¹Department of Biomedical Engineering, Northwestern University, Evanston, IL, United States, ²Department of Radiology, Northwestern University, Chicago, IL, United States, ³Institute of Medical Physics and Radiation Protection, Department of Life Science Engineering, TH-Mittelhessen University of Applied Sciences, Giessen, Germany, ⁴Division of Cardiology, 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, ⁶LOEWE Research Cluster for Advanced Medical Physics in Imaging and Therapy (ADMIT), TH-Mittelhessen University of Applied Sciences, Giessen, Germany

Synopsis

Keywords: Safety, Safety, Implants

Motivation: Pediatric patients often receive cardiac electronic devices that are not MR-conditional, leading to suboptimal imaging choices during clinical care.

Goal(s): Design a patient-adjustable, reconfigurable MRI coil system for implant-friendly pediatric imaging.

Approach: A linearly polarized, rotating birdcage transmitter was developed for full-body pediatric MRI at 1.5 T, featuring a manually adjustable low-electric-field region that aligns with the patient’s implant. In vivo RF heating was estimated for a commercial epicardial pacemaker.

Results: When positioned at its optimal rotation angle, the RPA coil reduced heating at the implanted lead tips by an average of seven-fold compared to the conventional body coil.

Impact: We introduce a user-friendly, plug-and-play coil solution to enhance MRI safety for pediatric patients with implants, empowering healthcare providers to deliver optimal care while minimizing risks.

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