Source:http://linkedlifedata.com/resource/pubmed/id/16685961
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| Predicate | Object |
|---|---|
| rdf:type | |
| lifeskim:mentions | |
| pubmed:issue |
Pt 2
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| pubmed:dateCreated |
2006-5-11
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| pubmed:abstractText |
Dynamic contrast-enhanced 4-D MR renography has the potential for broad clinical applications, but suffers from respiratory motion that limits analysis and interpretation. Since each examination yields at least over 10-20 serial 3-D images of the abdomen, manual registration is prohibitively labor-intensive. Besides in-plane motion and translation, out-of-plane motion and rotation are observed in the image series. In this paper, a novel robust and automated technique for removing out-of-plane translation and rotation with sub-voxel accuracy in 4-D dynamic MR images is presented. The method was evaluated on simulated motion data derived directly from a clinical patient's data. The method was also tested on 24 clinical patient kidney data sets. Registration results were compared with a mutual information method, in which differences between manually co-registered time-intensity curves and tested time-intensity curves were compared. Evaluation results showed that our method agreed well with these ground truth data.
|
| pubmed:language |
eng
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| pubmed:journal | |
| pubmed:citationSubset |
IM
|
| pubmed:status |
MEDLINE
|
| pubmed:author | |
| pubmed:volume |
8
|
| pubmed:owner |
NLM
|
| pubmed:authorsComplete |
Y
|
| pubmed:pagination |
205-13
|
| pubmed:dateRevised |
2009-12-11
|
| pubmed:meshHeading |
pubmed-meshheading:16685961-Algorithms,
pubmed-meshheading:16685961-Artificial Intelligence,
pubmed-meshheading:16685961-Fourier Analysis,
pubmed-meshheading:16685961-Humans,
pubmed-meshheading:16685961-Image Enhancement,
pubmed-meshheading:16685961-Image Interpretation, Computer-Assisted,
pubmed-meshheading:16685961-Imaging, Three-Dimensional,
pubmed-meshheading:16685961-Kidney Diseases,
pubmed-meshheading:16685961-Magnetic Resonance Imaging, Cine,
pubmed-meshheading:16685961-Numerical Analysis, Computer-Assisted,
pubmed-meshheading:16685961-Radioisotope Renography,
pubmed-meshheading:16685961-Reproducibility of Results,
pubmed-meshheading:16685961-Sensitivity and Specificity,
pubmed-meshheading:16685961-Signal Processing, Computer-Assisted,
pubmed-meshheading:16685961-Subtraction Technique
|
| pubmed:year |
2005
|
| pubmed:articleTitle |
Automatic 4-D registration in dynamic MR renography based on over-complete dyadic wavelet and Fourier transforms.
|
| pubmed:affiliation |
Department of Biomedical Engineering, Columbia University, New York, NY, USA. ts2060@columbia.edu
|
| pubmed:publicationType |
Journal Article,
Evaluation Studies
|