TY - GEN
T1 - Non-rigid MR-CT image registration for MR-Guided Liver Cancer Surgery
AU - Chen, Y. W.
AU - Xu, R.
AU - Tang, S. Y.
AU - Morikawa, S.
AU - Kurumi, Y.
PY - 2007
Y1 - 2007
N2 - Recently a growing interest has been seen in minimally invasive treatments with open configuration magnetic resonance (Open-MR) scanners. In this paper, we proposed a semi-automatic nan-rigid MR-CT registration technique for MR-Guided Liver Cancer Surgery in which cancer tissues are coagulated by microwave ablation. Because of the lower magnetic field (0.5T) and various different surgical conditions, sometimes tumors can not be visualized clearly on Open-MR volumes. 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 CNMI). Experiments show that the registration is accurate enough (≈1.45mm) for liver cancer surgery given some proper processing steps.
AB - Recently a growing interest has been seen in minimally invasive treatments with open configuration magnetic resonance (Open-MR) scanners. In this paper, we proposed a semi-automatic nan-rigid MR-CT registration technique for MR-Guided Liver Cancer Surgery in which cancer tissues are coagulated by microwave ablation. Because of the lower magnetic field (0.5T) and various different surgical conditions, sometimes tumors can not be visualized clearly on Open-MR volumes. 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 CNMI). Experiments show that the registration is accurate enough (≈1.45mm) for liver cancer surgery given some proper processing steps.
KW - Computer aided surgery
KW - Free Form Deformation (FFD)
KW - Non-rigid image registration
KW - Normalized Mutual Information (NMI)
KW - Open-MR scanner Guided Liver Cancer Surgery
UR - http://www.scopus.com/inward/record.url?scp=48149093108&partnerID=8YFLogxK
U2 - 10.1109/ICCME.2007.4382049
DO - 10.1109/ICCME.2007.4382049
M3 - Conference contribution
AN - SCOPUS:48149093108
SN - 1424410789
SN - 9781424410781
T3 - 2007 IEEE/ICME International Conference on Complex Medical Engineering, CME 2007
SP - 1756
EP - 1760
BT - 2007 IEEE/ICME International Conference on Complex Medical Engineering, CME 2007
T2 - 2007 IEEE/ICME International Conference on Complex Medical Engineering, CME 2007
Y2 - 23 May 2007 through 27 May 2007
ER -
