Reduction of electromagnetic interference from a commercially available MR-compatible flow simulator.
Electromagnetic interference (EMI) associated with the electronics of a commercially available computer controlled flow simulator substantially decreases the quality of the MR image. The effect of a custom-built radiofrequency shield on its spectral emission, and the corresponding signal-to-noise ratio measured for the image of a standard phantom, were determined. The results demonstrate the elimination of EMI and a significant improvement in image quality.
Robertson
M B
MB
Department of Medical Physics and Medical Engineering, University of Edinburgh, Western General Hospital, UK. malcolm.robertson@ed.ac.uk
Köhler
U
U
Marshall
I
I
D055590:Electromagnetic Phenomena; D008279:Magnetic Resonance Imaging / Q000295:instrumentation*; D019047:Phantoms, Imaging