Abstract #3582

Compact 3T brain MRI for patients with abandoned leads of cardiac implantable electronic devices

Lydia J Bardwell Speltz^1,2, Yunhong Shu¹, Robert E Watson¹, Joshua D Trzasko¹, Erin Gray¹, Maria Halverson¹, Joseph Arant¹, John Huston III¹, Thomas KF Foo³, and Matt A Bernstein¹

¹Department of Radiology, Mayo Clinic, Rochester, MN, United States, ²Mayo Clinic Graduate School of Biomedical Sciences, Mayo Clinic, Rochester, MN, United States, ³GE Global Research, Niskayuna, NY, United States

Synopsis

Patients with abandoned pacemaker leads require special attention during MR exams due to the risk of lead tip heating from RF energy deposition. The electromagnetic fields on the compact 3T (C3T) scanner fall off rapidly caudal to the head, and therefore present a reduced risk of lead tip heating during brain imaging. We compared the images from a whole-body 1.5T scanner and a high-performance C3T scanner. The C3T images show substantial improvements in image quality and greater cortical detail. This work establishes the feasibility of C3T brain MRI with a 32-channel receive coil for patients with abandoned leads.

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