Methods and systems for automatically determining magnetic field inversion time of a tissue species
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United States of America Patent
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Aug 15, 2017
Grant Date -
Oct 23, 2014
app pub date -
Apr 4, 2014
filing date -
Apr 17, 2013
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Abstract
A computer-implemented method for determining magnetic field inversion time of a tissue species includes generating a T1-mapping image of a tissue of interest, the T1-mapping image comprising a plurality of T1 values within an expected range of T1 values for the tissue of interest. An image mask is created based on predetermined identification information about the tissue of interest. Next, an updated image mask is created based on a largest connected region in the image mask. The updated image mask is applied to the T1-mapping image to yield a masked image. Then, a mean relaxation time value is determined for the largest connected region. The mean relaxation time value is then used to determine a time point for nulling longitudinal magnetization.
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