Reliable Use of Acquired and Simulated Signal Databases to Reduce MRI Acquisition Time

Reliable Use of Acquired and Simulated Signal Databases to Reduce MRI Acquisition Time

Bibliographic Details
Main Author: Pierre, Eric Y.
Language:English
Published: Case Western Reserve University School of Graduate Studies / OhioLINK 2014
Subjects:
Medical Imaging
MRI
Parallel Imaging
Compressed Sensing
MRF
Prior Information
Online Access:http://rave.ohiolink.edu/etdc/view?acc_num=case1404220001
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spelling ndltd-OhioLink-oai-etd.ohiolink.edu-case14042200012021-08-03T06:25:31Z Reliable Use of Acquired and Simulated Signal Databases to Reduce MRI Acquisition Time Pierre, Eric Y. Medical Imaging MRI Parallel Imaging Compressed Sensing MRF Prior Information Gains in MRI imaging time can be reinvested into improved patient comfort, higher resolution or reduced cost of opportunity for hospitals. In general, the most drastic increase in imaging speed is achieved via signal undersampling, compensated with prior information for image reconstruction. Two successful undersampled acquisition techniques are Parallel Imaging (PI) and Magnetic Resonance Fingerprinting (MRF). Both methods could benefit from optimized exploitation of prior information. We first improved PI reconstruction quality by exploiting local anatomical correlation across large collection of subject-independent images, while developing a robust framework to avoid prior information bias. Anatomical correlation from same-subject images was similarly exploited in the case of PI reconstruction for dynamic cardiac MRI. Finally in the case of MRF, a robust iterative framework was developed to exploit temporal template dictionaries to their full extent, reducing acquisition time for in vivo quantitative imaging by a factor 3. 2014-09-02 English text Case Western Reserve University School of Graduate Studies / OhioLINK http://rave.ohiolink.edu/etdc/view?acc_num=case1404220001 http://rave.ohiolink.edu/etdc/view?acc_num=case1404220001 unrestricted This thesis or dissertation is protected by copyright: all rights reserved. It may not be copied or redistributed beyond the terms of applicable copyright laws.
collection NDLTD
language English
sources NDLTD
topic Medical Imaging
MRI
Parallel Imaging
Compressed Sensing
MRF
Prior Information
spellingShingle Medical Imaging
MRI
Parallel Imaging
Compressed Sensing
MRF
Prior Information
Pierre, Eric Y.
Reliable Use of Acquired and Simulated Signal Databases to Reduce MRI Acquisition Time
author Pierre, Eric Y.
author_facet Pierre, Eric Y.
author_sort Pierre, Eric Y.
title Reliable Use of Acquired and Simulated Signal Databases to Reduce MRI Acquisition Time
title_short Reliable Use of Acquired and Simulated Signal Databases to Reduce MRI Acquisition Time
title_full Reliable Use of Acquired and Simulated Signal Databases to Reduce MRI Acquisition Time
title_fullStr Reliable Use of Acquired and Simulated Signal Databases to Reduce MRI Acquisition Time
title_full_unstemmed Reliable Use of Acquired and Simulated Signal Databases to Reduce MRI Acquisition Time
title_sort reliable use of acquired and simulated signal databases to reduce mri acquisition time
publisher Case Western Reserve University School of Graduate Studies / OhioLINK
publishDate 2014
url http://rave.ohiolink.edu/etdc/view?acc_num=case1404220001
work_keys_str_mv AT pierreericy reliableuseofacquiredandsimulatedsignaldatabasestoreducemriacquisitiontime
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