Extended Finite Element Method with Simplified Spherical Harmonics Approximation for the Forward Model of Optical Molecular Imaging
Joint Authors
Yi, Huangjian
Li, Wei
Liang, Jimin
Zhang, Qitan
Chen, Duofang
Source
Computational and Mathematical Methods in Medicine
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-11-24
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Abstract EN
An extended finite element method (XFEM) for the forward model of 3D optical molecular imaging is developed with simplified spherical harmonics approximation (SPN).
In XFEM scheme of SPN equations, the signed distance function is employed to accurately represent the internal tissue boundary, and then it is used to construct the enriched basis function of the finite element scheme.
Therefore, the finite element calculation can be carried out without the time-consuming internal boundary mesh generation.
Moreover, the required overly fine mesh conforming to the complex tissue boundary which leads to excess time cost can be avoided.
XFEM conveniences its application to tissues with complex internal structure and improves the computational efficiency.
Phantom and digital mouse experiments were carried out to validate the efficiency of the proposed method.
Compared with standard finite element method and classical Monte Carlo (MC) method, the validation results show the merits and potential of the XFEM for optical imaging.
American Psychological Association (APA)
Li, Wei& Yi, Huangjian& Zhang, Qitan& Chen, Duofang& Liang, Jimin. 2012. Extended Finite Element Method with Simplified Spherical Harmonics Approximation for the Forward Model of Optical Molecular Imaging. Computational and Mathematical Methods in Medicine،Vol. 2012, no. 2012, pp.1-10.
https://search.emarefa.net/detail/BIM-468673
Modern Language Association (MLA)
Li, Wei…[et al.]. Extended Finite Element Method with Simplified Spherical Harmonics Approximation for the Forward Model of Optical Molecular Imaging. Computational and Mathematical Methods in Medicine No. 2012 (2012), pp.1-10.
https://search.emarefa.net/detail/BIM-468673
American Medical Association (AMA)
Li, Wei& Yi, Huangjian& Zhang, Qitan& Chen, Duofang& Liang, Jimin. Extended Finite Element Method with Simplified Spherical Harmonics Approximation for the Forward Model of Optical Molecular Imaging. Computational and Mathematical Methods in Medicine. 2012. Vol. 2012, no. 2012, pp.1-10.
https://search.emarefa.net/detail/BIM-468673
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-468673