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Abstract #2298

Compact 3T MRI for patients with implanted devices: Software tool to display MR fields at a specified location

Lydia Jean Bardwell Speltz1,2, Yunhong Shu2, Myung-Ho In2, Nolan Meyer1,2, Erin Gray2, Diana Lanners2, Yihe Hua3, Robert E Watson2, John Huston III2, Thomas KF Foo3, and Matt A Bernstein2
1Mayo Clinic Graduate School of Biomedical Sciences, Mayo Clinic, Rochester, MN, United States, 2Department of Radiology, Mayo Clinic, Rochester, MN, United States, 3GE Global Research, Niskayuna, NY, United States

Many implanted devices are labeled MR Conditional, meaning specific, labeled conditions must be met to ensure safe scanning. We developed a software tool for use with a high-performance, compact 3T (C3T) scanner that verifies relevant MR conditions can be met at the location of the device (e.g., abdomen), even if those conditions are exceeded at the level of the anatomy being scanned (e.g., brain). MR parameters assessed include main magnetic field strength, gradient slew rate, RF amplitude (B1+2), and dB/dz. The limited extent of the fields with C3T suggests high-performance exams can sometimes be obtained without compromising patient safety.

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