Cardiac material markers from tagged MR images.
Cardiac material markers from tagged MR images.
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来自标记 MR 图像的心脏材料标记。
DOI:
10.1016/s1361-8415(98)80015-7
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发表时间:
1998
期刊:
影响因子:
--
通讯作者:
Prince,JL
中科院分区:
文献类型:
--
作者:
Kerwin,WS;Prince,JL
Tagged magnetic resonance imaging (MRI) has shown great promise in noninvasive analysis of heart motion. To replace implanted markers as a gold standard, however, tagged MRI must be able to track a sparse set of material points, so-called material markers, with high accuracy. This paper presents a new method for generating accurate motion estimates over a sparse set of material points using standard, parallel-tagged MR images. The tracked points are located at intersections of three tag surfaces, each of which is estimated using a thinplate spline. The intersections are determined by an iterative alternating projections algorithm for which a proof of convergence is provided. The resulting data sets are compatible with applications developed to exploit implanted marker data. One set of these material markers from a normal human volunteer is examined in detail using several methods to visualize the markers. Numerical results that include additional studies are also discussed. Finally, an error analysis is presented using a computer-simulated left ventricle for which material markers are tracked with an RMS error near 0.2 mm for typical imaging parameters and noise levels.
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DOI:
10.1007/978-3-540-85988-8_76
发表时间:
2008-09
期刊:
Medical image computing and computer-assisted intervention : MICCAI ... International Conference on Medical Image Computing and Computer-Assisted Intervention
影响因子:
--
作者:
Xiaoxu Wang;Ting Chen;Shaoting Zhang;Dimitris N. Metaxas;L. Axel
通讯作者:
Xiaoxu Wang;Ting Chen;Shaoting Zhang;Dimitris N. Metaxas;L. Axel
影响因子:
2.5
作者:
Liu H;Wang J;Xu X;Song E;Wang Q;Jin R;Hung CC;Fei B
通讯作者:
Fei B
DOI:
10.1109/iccv.2007.4409147
发表时间:
2007
期刊:
2007 IEEE 11th International Conference on Computer Vision
影响因子:
--
作者:
L. Florack;H. V. Assen;Avan Suinesiaputra
通讯作者:
Avan Suinesiaputra
影响因子:
1.8
作者:
Piccirelli, Marco;Luechinger, Roger;Bergamin, Oliver
通讯作者:
Bergamin, Oliver
DOI:
--
发表时间:
2009
期刊:
IEEE International Symposium on Biomedical Imaging
影响因子:
--
作者:
B. Ambale;T. Denney;H. Gupta;S. Lloyd;L. Dell’Italia
通讯作者:
L. Dell’Italia