Research Article

Nonrigid 3D Medical Image Registration and Fusion Based on Deformable Models

Table 5

Comparison of landmark dislocation with different registration methods.

Registration CT to iMRI CT to pMRI iMRI to pMRI

20 20 20
76 76 77
(mm) 3.26 6.58 6.58
1.25 3.31 3.25
20 15 14
76 56 53
(mm) 4.32 11.98 10.72
1.94 5.62 5.60
0.000001 ā‰ˆ0 ā‰ˆ0

(iMRI: intrainterventional MRI, pMRI postinterventional MRI.) : number of patients (affine registration). : number of landmarks (affine registration). : averaged dislocation (affine registration). : standard deviation (affine registration). : number of patients (elastic registration). : number of landmarks (elastic registration). : averaged dislocation (elastic registration). : standard deviation (elastic registration). P: two-sided level of significance of t-test for versus in the same column.