Document Detail


Shortening MR image acquisition time for volumetric interpolated breath-hold examination with a recently developed parallel imaging reconstruction technique: clinical feasibility.
MedLine Citation:
PMID:  14699184     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
A recently developed parallel magnetic resonance (MR) imaging technique, parallel imaging with an augmented radius in k space, was used to accelerate the volumetric interpolated breath-hold examination (VIBE) performed in 20 patients referred for clinical liver imaging. Nonaccelerated MR images were also acquired in these patients. A five-point scale was used to score the quality of the images. The acceleration resulted in reduced image quality: The nonaccelerated images had a significantly higher (P <.05) mean score--3.8 +/- 0.3 (SD), indicating good quality--than the accelerated images--3.0 +/- 0.3, indicating acceptable quality. However, for three patients who could not hold their breath for the duration necessary for nonaccelerated imaging, less severe breathing artifacts on the accelerated images resulted in improved quality compared with the quality of the nonaccelerated images. Parallel MR imaging-accelerated VIBE may be beneficial for patients who have difficulty sustaining a breath hold for the duration necessary to perform nonaccelerated imaging.
Authors:
Charles A McKenzie; Daniel Lim; Bernard J Ransil; Martina Morrin; Ivan Pedrosa; Ernest N Yeh; Daniel K Sodickson; Neil M Rofsky
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Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, P.H.S.     Date:  2003-12-29
Journal Detail:
Title:  Radiology     Volume:  230     ISSN:  0033-8419     ISO Abbreviation:  Radiology     Publication Date:  2004 Feb 
Date Detail:
Created Date:  2004-01-30     Completed Date:  2004-02-17     Revised Date:  2007-11-14    
Medline Journal Info:
Nlm Unique ID:  0401260     Medline TA:  Radiology     Country:  United States    
Other Details:
Languages:  eng     Pagination:  589-94     Citation Subset:  AIM; IM    
Copyright Information:
Copyright RSNA, 2003
Affiliation:
Department of Radiology, Beth Israel Deaconess Medical Center, 330 Brookline Ave, Room AN-239, Boston, MA 02215, USA. charles_mckenzie@caregroup.harvard.edu
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MeSH Terms
Descriptor/Qualifier:
Adult
Aged
Analysis of Variance
Artifacts
Female
Humans
Image Interpretation, Computer-Assisted / methods*
Liver / pathology
Liver Diseases / diagnosis*
Liver Neoplasms / diagnosis*
Magnetic Resonance Imaging / methods*
Male
Mathematical Computing
Middle Aged
Reproducibility of Results
Time Factors
Grant Support
ID/Acronym/Agency:
R01 EB00447/EB/NIBIB NIH HHS; R29 HL60802/HL/NHLBI NIH HHS

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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