Table 2.

Initial patient treatment statistics of indexed patients.

	Treatment		Vertical (cm)			Longitude (cm)			Latitude (cm)
Site	Pt	Tx	Avg	SD	Tol	Avg	SD	Tol	Avg	SD	Tol
Lung	20	317	0.3	0.5	0.9	1.2	1.6	3.2	0.7	1.1	2.2
H&N	30	656	0.1	0.2	0.5	0.3	0.4	0.9	0.2	0.5	0.9
Breast	8	155	0.5	0.6	1.3	1.0	1.3	2.7	1.5	2.0	4.0
Pelvis Abdomen	8	180	0.3	0.5	0.9	1.6	1.9	3.8	1.3	1.7	3.5
Total	66	1308

$\text{Pt}=\text{number of patient};\text{Tx}=\text{number of treatment};\text{Avg}=\text{Average};\text{SD}=\text{standard deviation};\text{Tol}=\text{tolerance}$