Non-rigid registration of breast surfaces using the laplace and diffusion equations

Table 1 Simulation registration error

	Simulation 1 (CT) (33 mm displacement)		Simulation 2 (CT) (13 mm displacement)		Simulation 3 (MR) (6 mm displacement)
	Max TRE (mm)	Mean TRE (mm)	Max TRE (mm)	Mean TRE (mm)	Max TRE (mm)	Mean TRE (mm)
Laplace	8.5	1.6	2.6	0.53	2.5	0.48
Diffusion	6.7	1.8	8.0	1.5	2.9	0.61
TPS*	3.1	0.44	2.6	0.26	0.6	0.033

Max and mean TRE when the Laplace, diffusion, and TPS methods were used to register breast surfaces deformed by three simulations.
*TPS registration using 40 uniformly distributed fiducials for the CT simulations and 60 for the MR simulation.

ISSN: 1475-925X