Abstract #1597

High-performance, Shielding-free MSK Imaging at 100mT Enabled by Retrospective Active EMI Cancellation

Mauro Spreiter¹, Reina Ayde^1,2, Necati Ozcakal¹, Tobias Senft¹, Najat Salameh^1,2, and Mathieu Sarracanie^1,2

¹Center for Adaptable MRI Technology (AMT Center), Department of Biomedical Engineering, University of Basel, Allschwil, Switzerland, ²AMT Center, Institute of Medical Sciences, School of Medicine, Medical Sciences & Nutrition, University of Aberdeen, Aberdeen, United Kingdom

Synopsis

Keywords: Low-Field MRI, Low-Field MRI

Electromagnetic interference cancellation method EDITER is implemented in an unshielded low-field MRI scanner at 100mT by addition of only two EMI detection coils to the acquisition chain. The method’s effectiveness is illustrated in high resolution MSK images of healthy volunteer’s hands. Full 3D images with sub-millimeter in-plane or isotropic millimeter voxel dimensions can be obtained in clinically acceptable acquisition times. This approach, in combination with acceleration strategies, opens perspectives in MSK imaging in the field with portable scanners and/or in low resource environments.

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