中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Myocardial T2 mapping with respiratory navigator and automatic nonrigid motion correction

文献类型:期刊论文

作者Shivraman Giri; Saurabh Shah; Hui Xue; Yiu-Cho Chung; Michael L. Pennell; Jens Guehring; Sven Zuehlsdorff; Subha V. Raman; Orlando P. Simonetti
刊名MAGNETIC RESONANCE IN MEDICINE
出版日期2012
英文摘要Abstract Quantitative T 2 mapping was recently shown to be superior to T 2 -weighted imaging in detecting T 2 changes across myocardium. Pixel-wise T 2 mapping is sensitive to misregistration between the images used to generate the parameter map. In this study, utility of two motion-compensation strategies—(i) navigator gating with prospective slice correction and (ii) nonrigid registration—was investigated for myocardial T 2 mapping in short axis and horizontal long axis views. Navigator gating provides respiratory motion compensation, whereas registration corrects for residual cardiac and respiratory motion between images; thus, the two strategies provided complementary functions. When these were combined, respiratory-motion-induced T 2 variability, as measured by both standard deviation and interquartile range, was comparable to that in breath-hold T 2 maps. In normal subjects, this combined motion-compensation strategy increased the percentage of myocardium with T 2 measured to be within normal range from 60.1% to 92.2% in short axis and 62.3% to 92.7% in horizontal long axis. The new motion-compensated T 2 mapping technique, which combines navigator gating, prospective slice correction, and nonrigid registration to provide through-plane and in-plane motion correction, enables a method for fully automatic and robust free-breathing T 2 mapping. Magn Reson Med, 2012. 08 2012 Wiley Periodicals, Inc.
收录类别SCI
原文出处http://onlinelibrary.wiley.com/doi/10.1002/mrm.24139/epdf
语种英语
源URL[http://ir.siat.ac.cn:8080/handle/172644/4308]  
专题深圳先进技术研究院_其他
作者单位MAGNETIC RESONANCE IN MEDICINE
推荐引用方式
GB/T 7714
Shivraman Giri,Saurabh Shah,Hui Xue,et al. Myocardial T2 mapping with respiratory navigator and automatic nonrigid motion correction[J]. MAGNETIC RESONANCE IN MEDICINE,2012.
APA Shivraman Giri.,Saurabh Shah.,Hui Xue.,Yiu-Cho Chung.,Michael L. Pennell.,...&Orlando P. Simonetti.(2012).Myocardial T2 mapping with respiratory navigator and automatic nonrigid motion correction.MAGNETIC RESONANCE IN MEDICINE.
MLA Shivraman Giri,et al."Myocardial T2 mapping with respiratory navigator and automatic nonrigid motion correction".MAGNETIC RESONANCE IN MEDICINE (2012).

入库方式: OAI收割

来源:深圳先进技术研究院

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