Fast cardiac magnetic resonance imaging using radical trajectories, temporally constrained reconstruction, and graphics processing unit clusters

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Publication Type dissertation
School or College School of Medicine
Department Biomedical Informatics
Author Hulet, Jordan P.
Title Fast cardiac magnetic resonance imaging using radical trajectories, temporally constrained reconstruction, and graphics processing unit clusters
Date 2013-12
Description Cine phase contrast (PC) magnetic resonance imaging (MRI) is a useful imaging technique that allows for the quantitative measurement of in-vivo blood velocities over the cardiac cycle. Velocity information can be used to diagnose and learn more about the mechanisms of cardio-vascular disease. Compared to other velocity measuring techniques, PC MRI provides high-resolution 2D and 3D spatial velocity information. Unfortunately, as with many other MRI techniques, PC MRI su ers from long acquisition times which places constraints on temporal and spatial resolution. This dissertation outlines the use of temporally constrained reconstruction (TCR) of radial PC data in order to signi cantly reduce the acquisition time so that higher temporal and spatial resolutions can be achieved. A golden angle-based acquisition scheme and a novel self-gating method were used in order to allow for exible selection of temporal resolution and to ameliorate the di culties associated with external electrocardiogram (ECG) gating. Finally, image reconstruction times for TCR are signi cantly reduced by implementation on a high-performance computer cluster. The TCR algorithm is executed in parallel across multiple GPUs achieving a 50 second reconstruction time for a very large cardiac perfusion data set.
Type Text
Publisher University of Utah
Subject MESH Algorithms; Electrocardiography; Image Processing, Computer-Assisted; Magnetic Resonance Imaging; Magnetic Resonance Imaging, Cine; Vascular Diseases; Internet; Privacy; Data Compression; Medical Informatics
Dissertation Institution University of Utah
Dissertation Name Doctor of Philosophy
Language eng
Relation is Version of Digital reproduction of Fast Cardiac Magnetic Resonance Imaging Using Radical Trajectories, Temporally Constrained Reconstruction, and Graphics Processing Unit Clusters. Print version available at J. Willard Marriott Library Special Collections.
Rights Management Copyright © Jordan P. Hulet 2013
Format Medium application/pdf
Format Extent 2,670,201 bytes
Source Original in Marriott Library Special Collections. RC39.5 2013.H85
ARK ark:/87278/s6hb2df5
Setname ir_etd
ID 196642
Reference URL https://collections.lib.utah.edu/ark:/87278/s6hb2df5