Magnetic resonance system and method to create a magnetic resonance image data set by radial scanning of a magnetic resonance system
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United States of America Patent
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Jul 23, 2013
Grant Date -
Sep 29, 2011
app pub date -
Mar 24, 2011
filing date -
Mar 24, 2010
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Abstract
In a magnetic resonance apparatus and method to generate an image data set by means of a radial scanning of a raw data set, at least one calibration measurement is implemented for at least one predetermined spoke of the radial scan, and a gradient moment difference between an assumed gradient moment and an actually applied gradient moment is determined along the at least one predetermined spoke. Readout of all spokes of the predetermined raw data set ensues by activating multiple magnetic field gradients in spatial directions in order to respectively read out scan points of a respective spoke. The position of each scan point of each spoke is corrected depending on the gradient moment difference, by the position of the respective scan point that is assumed based on the respective activated magnetic field gradients being shifted by the gradient moment difference.
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