Table 2.

The comparison of iso-plane dose distributions.

Patients	Beam index	DTA (3 mm, 3%, 10%) Pass rate (%)	Gamma index analysis (2 mm, 2%, 10%, γ<1) Pass rate (%)
NK/T	1	99.0	100.0
	2	100.0	100.0
	3	99.4	100.0
	4	99.5	100.0
	5	99.2	100.0
NPC	1	97.2	99.5
	2	98.8	99.8
	3	99.8	99.8
	4	98.9	100.0
	5	96.3	99.6
	6	94.5	99.9
	7	99.8	100.0
	8	99.5	100.0
	9	99.0	100.0
Brain Tumor	1	99.7	100.0
	2	99.8	100.0
	3	96.3	100.0
	4	100.0	100.0
	5	100.0	100.0

The comparison of iso-plane dose distributions based on conventional CT and KVCBCT for 3 clinical cases using distance to agreement (DTA) and gamma index analysis in all the beams.