Document Detail

High spatial and temporal resolution cardiac cine MRI from retrospective reconstruction of data acquired in real time using motion correction and resorting.
MedLine Citation:
PMID:  19780155     Owner:  NLM     Status:  MEDLINE    
Cine MRI is used for assessing cardiac function and flow and is typically based on a breath-held, segmented data acquisition. Breath holding is particularly difficult for patients with congestive heart failure or in pediatric cases. Real-time imaging may be used without breath holding or ECG triggering. However, despite the use of rapid imaging sequences and accelerated parallel imaging, real-time imaging typically has compromised spatial and temporal resolution compared with gated, segmented breath-held studies. A new method is proposed that produces a cardiac cine across the full cycle, with both high spatial and temporal resolution from a retrospective reconstruction of data acquired over multiple heartbeats during free breathing. The proposed method was compared with conventional cine images in 10 subjects. The resultant image quality for the proposed method (4.2 +/- 0.4) without breath holding or gating was comparable to the conventional cine (4.4 +/- 0.5) on a five-point scale (P = n.s.). Motion-corrected averaging of real-time acquired cardiac images provides a means of attaining high-quality cine images with many of the benefits of real-time imaging, such as free-breathing acquisition and tolerance to arrhythmias.
Peter Kellman; Christophe Chefd'hotel; Christine H Lorenz; Christine Mancini; Andrew E Arai; Elliot R McVeigh
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Publication Detail:
Type:  Evaluation Studies; Journal Article; Research Support, N.I.H., Extramural; Research Support, N.I.H., Intramural; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Magnetic resonance in medicine : official journal of the Society of Magnetic Resonance in Medicine / Society of Magnetic Resonance in Medicine     Volume:  62     ISSN:  1522-2594     ISO Abbreviation:  Magn Reson Med     Publication Date:  2009 Dec 
Date Detail:
Created Date:  2009-11-30     Completed Date:  2010-02-22     Revised Date:  2014-08-27    
Medline Journal Info:
Nlm Unique ID:  8505245     Medline TA:  Magn Reson Med     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1557-64     Citation Subset:  IM    
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MeSH Terms
Cardiac-Gated Imaging Techniques / methods*
Computer Systems
Coronary Artery Disease / diagnosis*
Image Enhancement / methods*
Image Interpretation, Computer-Assisted / methods
Magnetic Resonance Imaging, Cine / methods*
Myocardial Infarction / diagnosis*
Reproducibility of Results
Respiratory-Gated Imaging Techniques / methods*
Sensitivity and Specificity
Grant Support

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

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