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    
Abstract/OtherAbstract:
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.
Authors:
Peter Kellman; Christophe Chefd'hotel; Christine H Lorenz; Christine Mancini; Andrew E Arai; Elliot R McVeigh
Related Documents :
15508155 - Computational cardiac anatomy using mri.
2670225 - Ambulatory and intraoperative transesophageal echocardiography.
23966375 - Multiplanar 3d ultrasound imaging to assess the anatomy of the upper airway and measure...
8551985 - Quantitation of organ symmetry by diagnostic ultrasonic imaging: a group theoretical ap...
20059235 - Whole-body, real-time preclinical imaging of quantum dot fluorescence with time-gated d...
11942725 - Interscale wavelet maximum-a fine to coarse algorithm for wavelet analysis of the emg i...
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    
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Descriptor/Qualifier:
Algorithms
Artifacts*
Cardiac-Gated Imaging Techniques / methods*
Computer Systems
Coronary Artery Disease / diagnosis*
Humans
Image Enhancement / methods*
Image Interpretation, Computer-Assisted / methods
Magnetic Resonance Imaging, Cine / methods*
Motion
Myocardial Infarction / diagnosis*
Reproducibility of Results
Respiratory-Gated Imaging Techniques / methods*
Sensitivity and Specificity
Grant Support
ID/Acronym/Agency:
Z99 HL999999/HL/NHLBI NIH HHS; ZIA HL004607-14/HL/NHLBI NIH HHS
Comments/Corrections

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


Previous Document:  Early changes in the apparent diffusion coefficient (ADC) in a mouse model of Sandhoff's disease occ...
Next Document:  Independent slab-phase modulation combined with parallel imaging in bilateral breast MRI.