Document Detail


Inter-breath-hold registration for the production of high resolution cardiac MR volumes.
MedLine Citation:
PMID:  16686045     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
High resolution MRI images of the beating heart permit observation of detailed anatomical features and enable quantification of small changes in metrics of cardiac function. To obtain approximately isotropic sampling with an adequate spatial and temporal resolution, these images need to be acquired in multiple breath-holds. They are, therefore, often affected by through-plane discontinuities due to inconsistent breath-hold positions. This paper presents a method to correct for these discontinuities by performing breath-hold-by-breath-hold registration of high resolution 3D data to radial long axis images. The corrected images appear free of discontinuities, and it was found that they could be delineated more reproducibly than uncorrected images. This reduces the sample size required to detect systematic changes in blood pool volume by 57% at end systole and 78% at end diastole.
Authors:
Nicholas M I Noble; Redha Boubertakh; Reza S Razavi; Derek L G Hill
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Publication Detail:
Type:  Evaluation Studies; Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Medical image computing and computer-assisted intervention : MICCAI ... International Conference on Medical Image Computing and Computer-Assisted Intervention     Volume:  8     ISSN:  -     ISO Abbreviation:  Med Image Comput Comput Assist Interv     Publication Date:  2005  
Date Detail:
Created Date:  2006-05-11     Completed Date:  2006-06-06     Revised Date:  2009-12-11    
Medline Journal Info:
Nlm Unique ID:  101249582     Medline TA:  Med Image Comput Comput Assist Interv     Country:  Germany    
Other Details:
Languages:  eng     Pagination:  894-901     Citation Subset:  IM    
Affiliation:
Centre for Medical Image Computing, University College London, UK. N.Noble@ucl.ac.uk
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MeSH Terms
Descriptor/Qualifier:
Algorithms*
Artifacts*
Heart / anatomy & histology*
Humans
Image Enhancement / methods*
Image Interpretation, Computer-Assisted / methods*
Imaging, Three-Dimensional / methods*
Reproducibility of Results
Respiratory Mechanics*
Sensitivity and Specificity
Subtraction Technique*

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


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