Three-dimensional heart locator and compressed sensing for whole-heart MR angiography.
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ABSTRACT:
SUBMITTER: Moghari MH
PROVIDER: S-EPMC5292940 | biostudies-literature | 2016 May
REPOSITORIES: biostudies-literature
Publications
Three-dimensional heart locator and compressed sensing for whole-heart MR angiography.
Moghari Mehdi H MH Annese David D Geva Tal T Powell Andrew J AJ
Magnetic resonance in medicine 20150610 5
<h4>Purpose</h4>We sought to develop a whole-heart magnetic resonance angiography technique with three-dimensional (3D) respiratory motion compensation and reduced scan time.<h4>Methods</h4>A novel respiratory motion compensation method was implemented that acquires a 1D navigator (NAV) and a low-resolution 3D-image of the heart (3D-LOC) just before the angiography data. The central 10% of SSFP k-space was fully acquired using NAV-gating, and then 10% of peripheral k-space was randomly undersamp ...[more]
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