Abstract #4342
Correction of fast motion by field monitoring in the head frame of reference
Alexander Aranovitch 1,2 , Maximilian Haeberlin 1 , Axel Haase 2 , and Klaas Paul Pruessmann 1
1
Institute for Biomedical Engineering,
University and ETH, Zurich, Zurich, Switzerland,
2
Zentralinstitut
fr Medizintechnik, Technische Universitt Mnchen,
Munich, Bavaria, Germany
Very fast ehad motion cannot be neglected in long
readouts such as single-shot EPI. The resulting k-space
trajectory distortions cause image artefacts such as
blurring, ghosting and geometric distortions if left
untreated. Concurrent field monitoring in the head frame
of reference is proposed to correct for fast motion
during an EPI readout. Potential applications include
tremor patients and other non-cooperative patients.
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