Method for non-contrast enhanced magnetic resonance angiography
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United States of America Patent
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Jun 3, 2014
Grant Date -
Jan 16, 2014
app pub date -
Jul 12, 2012
filing date -
Jul 12, 2012
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Abstract
A method for non-contrast enhanced magnetic resonance angiography (MRA) of a three-dimensional (3D) volume of a subject having a vascular structure extending through the 3D volume and having flowing spins passing through vascular structure. The method includes applying at least one radiofrequency (RF) pulse to a first slice to label the flowing spins passing into a second slice located within the 3D volume adjacent to the first slice and acquiring imaging data from the second slice using a two-dimensional (2D) pulse sequence and sampling k-space using a non-Cartesian sampling pattern. The acquisition of the of the imaging data is repeated to acquire a series of second slices located across the 3D volume to acquire respective sets of imaging data spanning the 3D volume. The sets of imaging data is reconstructed into a time-series of image frames depicting the flowing spins passing through the vascular structure.
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