System and method for imaging of vascular structures using non-contrast enhanced magnetic resonance imaging
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United States of America Patent
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Nov 29, 2016
Grant Date -
Mar 20, 2014
app pub date -
Sep 6, 2013
filing date -
Sep 19, 2012
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Abstract
A system and method is provided for acquiring a medical image of a portion of a vascular structure of a subject using a magnetic resonance imaging (MRI) system. At least one radio frequency (RF) saturation pulse is applied to a selected region of a subject that is free of exogenous contrast agents using the MRI system to saturate spins of all tissues within the selected region. A delay time is selected to allow an inflow of unsaturated vascular spins that are free of influence from exogenous contrast agent into the selected region through vascular structures within the selected region. A sparse dataset is formed from a series of spatially-encoded views from the selected region using an undersampled radial k-space trajectory in which the center of k-space is sampled for each view in the series of spatially-encoded views. An image of the vascular structures within the selected region is reconstructed from the sparse dataset.
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