Abstract #4231

MRI Room Placement: The effect of an elevator operation on local magnetic environment

Diego F. Martinez¹, Kieffer J. Davieau^1,2, Eric J. Lessard^1,2, William B. Handler¹, and Blaine A. Chronik^1,2

¹The xMR Labs, Physics and Astronomy, Western University, London, ON, Canada, ²Medical Biophysics, Western University, London, ON, Canada

Developments in MR systems are allowing for siting which does not follow the typical “4 zone” architecture, removing barriers for MR implementation. A consequence of this is that these systems are nearer to elements of a building or hospital that may cause field distortions and cannot be resolved by shimming. This work quantifies the field distortions due to two typical elevators along a hallway and compares the distortion to a fit using a magnetic dipole approximation, verifying a 1/r³ field behaviour. This demonstrates the need for MR system placement guidelines which mitigate potential field stability concerns due to building elements.

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