Presentation 2006-05-26
3D Image Registration and Its Application to Open-MR Scanner Based Liver Cancer Surgery
Rui Xu, Yen-Wei Chen, Song-Yuan Tang, Shigehiro Morikawa, Yoshimasa Kurumi,
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Abstract(in English) A semi-automatic non-rigid registration technique is successfully applied to assist and improve the open configuration magnetic resonance (Open-MR) imaging guided liver cancer surgery in which cancer tissues are coagulated by microwave ablation. Since the Open-MR volumes are obtained in a lower magnetic field (0.5T) and various different surgical conditions, sometimes tumors can not be visualized clearly on them. Combining of CT volumes acquired before surgery, it is possible to identify the tumor's location by application of registration techniques. Since such a registration problem belongs to a non-rigid one considering the easy deformation of livers, free-form deformation (FFD) based registration method is applied. Similarity measurement in registration is normalized mutual information (NMI). In this paper, we use the Parzen-window method based on two 3^ order B-spline kernels to calculate NMI. Additionally, we firstly derive the explicit expression of 1st order derivatives of NMI. Registration accuracy is evaluated by both objective and subjective evaluated methods. Experiments show that the registration is accurate enough (ap1.45mm) for liver cancer surgery given some proper processing steps.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) 3D Image Registration / FFD / Computer-aided Surgery
Paper # PRMU2006-35,MI2006-35
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Conference Information
Committee PRMU
Conference Date 2006/5/19(1days)
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Paper Information
Registration To Pattern Recognition and Media Understanding (PRMU)
Language ENG
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) 3D Image Registration and Its Application to Open-MR Scanner Based Liver Cancer Surgery
Sub Title (in English)
Keyword(1) 3D Image Registration
Keyword(2) FFD
Keyword(3) Computer-aided Surgery
1st Author's Name Rui Xu
1st Author's Affiliation College of Information Science and Engineering, Ritsumeikan University()
2nd Author's Name Yen-Wei Chen
2nd Author's Affiliation College of Information Science and Engineering, Ritsumeikan University
3rd Author's Name Song-Yuan Tang
3rd Author's Affiliation College of Information Science and Engineering, Ritsumeikan University:Department of Opto-electronic Engineering, Beijing Institute of Technology
4th Author's Name Shigehiro Morikawa
4th Author's Affiliation Biomedical MR Science Center, Shiga University of Medical Science
5th Author's Name Yoshimasa Kurumi
5th Author's Affiliation Department of Surgery, Shiga University of Medical Science
Date 2006-05-26
Paper # PRMU2006-35,MI2006-35
Volume (vol) vol.106
Number (no) 73
Page pp.pp.-
#Pages 6
Date of Issue