Document Detail


Optimization of alternating TR-SSFP for fat-suppression in abdominal images at 3T.
MedLine Citation:
PMID:  22189839     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Magnetic resonance imaging is widely used in the work-up and monitoring of patients with Crohn's disease. Balanced steady-state free precession sequences are an important part of the imaging protocol and until now primarily 1.5T scanners have been used in daily clinical practice. This is largely because running balanced steady-state free precession sequences in 3T magnets has technical problems related to increased B(0) inhomogeneity and specific absorption rate (SAR) deposition. A modified form of alternating repetition time steady-state free precession sequence is presented to acquire 3D-isotropic abdominal images with fat-suppression at 3T within a breath-hold. The modifications include an adjusted radiofrequency pulse shape, suitable phase-cycling scheme and TR(1) /TR(2) ratio. Results show that the proposed sequence is successful in obtaining high contrast 3D-isotropic abdominal images within a breath-hold. Furthermore, the proposed methodology is easy to implement in a clinical setting and does not require any postprocessing steps. Magn Reson Med, 2011. © 2011 Wiley Periodicals, Inc.
Authors:
S I Gonçalves; M L W Ziech; R Lamerichs; J Stoker; A J Nederveen
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-12-21
Journal Detail:
Title:  Magnetic resonance in medicine : official journal of the Society of Magnetic Resonance in Medicine / Society of Magnetic Resonance in Medicine     Volume:  -     ISSN:  1522-2594     ISO Abbreviation:  -     Publication Date:  2011 Dec 
Date Detail:
Created Date:  2011-12-22     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8505245     Medline TA:  Magn Reson Med     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2011 Wiley Periodicals, Inc.
Affiliation:
Department of Radiology, Academic Medical Centre, Amsterdam, The Netherlands. sigoncalves@huc.min-saude.pt.
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