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Abstract #4231

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

Diego F. Martinez1, Kieffer J. Davieau1,2, Eric J. Lessard1,2, William B. Handler1, and Blaine A. Chronik1,2
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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