Table 2.

Point dose measured and calculated at the diode plane along the CAX.

Patient	Site	ArcCHECK (Diode plane) (cGy)	TPS (cGy)	Dose diff (cGy)	% Dose diff
Patient 1	H & N	60.36	60.7	−0.34	−0.56
Patient 2	ESOPHAGUS	79.74	80.5	−0.76	−0.95
Patient 3	H & N	58.42	62.51	−4.09	−7
Patient 4	H & N	50.43	52.2	−1.77	−3.51
Patient 5	H & N	112.08	115.2	−3.12	−2.78
Patient 6	ABDOMEN	92.86	94.86	−2	−2.15
Patient 7	H & N	66.09	67.75	−1.66	−2.51
Patient 8	H & N	44.13	44.66	−0.53	−1.2
Patient 9	PELVIS	149.16	151.5	−2.34	−1.57
Patient 10	BREAST	81.64	79.54	2.1	2.57
Patient 11	PELVIS	126.93	129.2	−2.27	−1.79
Patient 12	ESOPHAGUS	59.01	59.8	−0.79	−1.34