Meeting Banner
Abstract #1309

Pre-Contrast and Post-Contrast Isotropic 3D Black-Blood MRI with Identical Imaging Parameters

Niranjan Balu1, Chun Yuan1

1Radiology, University of Washington, Seattle, WA, United States

Comparison of pre and post-gadolinium contrast black-blood MRI is required for accurate identification of atherosclerotic plaque components such as lipid-rich necrotic core. Obtaining both pre and post-contrast MRI with identical imaging parameters is critical to distinguish plaque components based on their contrast uptake. Adequate blood-suppression in post-contrast 3D black-blood MRI is challenging due to shortening of blood T1 post-contrast and the requirement of large coverage and short scan time. We describe a 3D isotropic black-blood imaging for large-coverage black-blood MRI pre and post-contrast with identical imaging parameters and compare its performance to an existing 2D quadruple inversion recovery sequence.

Abstract PDF

Keywords

accurately achieve achieved acquiring acquisitions additional adequate aims amplitude array arrow artery artifacts atherosclerosis axial bandwidth best black blood calcification carotid centric challenges coils components conducted confirmed contrast core coverage delay delineation despite edges encoding enhancement ensures equation extension extent facilitate features final flash flow gadolinium good gradient identical identified immediately implemented imposes improve improved improvement invented inversion isotropic larger least length lesser limited lipid longer lumen matched materials measured merge minor modulates necrotic optimization optimize optimized outer panel patients pixel plaque post predicted preparation prepared previously produces profile published pulse quadruple quality radiology ranging rapid readout recent recovered recovers recovery reduced reducing reformat reformats required requires rich segmented series short shortening shorter simulation slew slightly space spoiled subjects suppression turbo validated volume volunteers yuan