System and method for measuring induced radio frequency current using phase contrast magnetic resonance imaging
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United States of America Patent
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Feb 23, 2016
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Aug 14, 2014
app pub date -
Feb 13, 2013
filing date -
Feb 13, 2013
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Abstract
A method for automatically measuring currents induced on conducting structures positioned in the bore of a magnetic resonance imaging (“MRI”) scanner using a single magnetic resonance image is provided. A conductive structure is positioned within the bore of the MRI scanner during imaging. When the MRI system is transmitting an RF field, a current is induced in the conductive structure. The current creates a magnetic field at the Larmor frequency, which couples to the RF magnetic field in the vicinity of the conductive structure. The modified magnetic field results in an artifact being generated in phase images. The artifact in the phase image is then analyzed to determine the current induced in the conductive structure.
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