Evaluating the Therapeutic Dose Distribution of Intensity-Modulated Radiation Therapy for Head and Neck with Cone-Beam Computed Tomography Image: A Methodological Study

Table 4

Fitting results for different sample numbers of matching points.

Fitting parameters	Number of matching points
	60	80	100	120
(coefficient)	0.922	0.907	0.908	0.907
(constant)	948.2	950.9	951.8	950.8
Diff. mean	−0.3	−0.4	0.0	0.0
Diff. Std	108.2	116.7	111.9	110.2
(correlation)	0.987	0.985	0.985	0.985