Abstract #3580

A small loop makes a big difference: Modifying trajectory of epicardial leads substantially reduces RF heating of CIEDs in children during 1.5T MRI

Fuchang Jiang¹, Bhumi Bhusal², Bach Nguyen², Michael Monge³, Gregory Webster⁴, Daniel Kim², Giorgio Bonmassar⁵, Andrada R. Popsecu⁶, and Laleh Golestanirad^1,2

¹Department of Biomedical Engineering, McCormick School of Engineering, Northwestern University, Evanston, IL, United States, ²Department of Radiology, Feinberg School of Medicine, Northwestern University, Chicago, IL, United States, ³Division of Cardiovascular-Thoracic Surgery, Ann & Robert H. Lurie Children's Hospital of Chicago, Chicago, IL, United States, ⁴Division of Cardiology, Ann & 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, ⁶Division of Medical Imaging, Ann & Robert H. Lurie Children’s Hospital of Chicago, Chicago, IL, United States

Synopsis

Infants with congenital heart defects, inherited arrhythmia syndromes, and congenital disorders of cardiac conduction often require cardiac implantable electronic devices (CIEDs). Some infants receive a CIED within hours, or even minutes, of birth. The presence of an epicardial CIED is a relative contraindication for cardiac magnetic resonance imaging (MRI) due to the risk of RF heating. We present results of phantom experiments and electromagnetic simulations showing that a simple surgical modification in the trajectory of epicardial leads can reduce RF heating more than 40-fold during MRI at 1.5 T.

How to access this content:

For one year after publication, abstracts and videos are only open to registrants of this annual meeting. Registrants should use their existing login information. Non-registrant access can be purchased via the ISMRM E-Library.

After one year, current ISMRM & ISMRT members get free access to both the abstracts and videos. Non-members and non-registrants must purchase access via the ISMRM E-Library.

After two years, the meeting proceedings (abstracts) are opened to the public and require no login information. Videos remain behind password for access by members, registrants and E-Library customers.

Click here for more information on becoming a member.