Table 1.

Mean DSC Values and Standard Deviations for Both Rigid and Nonrigid Registration^*

	DSC Rigid		DSC Nonrigid
Region	Mean	SD	Mean	SD
TG	0.82	±0.07	0.91	±0.02
CG	0.78	±0.08	0.89	±0.03
PZ	0.64	±0.13	0.79	±0.07

^*When comparing the underlying mean DSC values for rigid and nonrigid registration for all areas of the prostate, one-sided t-tests showed that the DSC values improved with statistical significance (P < 0.05) in the total prostate gland and its substructures.

DSC = Dice similarity coefficient; TG = total gland; CG = central gland; PZ = peripheral zone; SD = standard deviation.