1mm calc grid
PTV to Skin (mm)	C.I.	Hot Spot (%)	TPS SD underestimation(%)
0	1.08	117.8	−10.3
1	1.06	115.9	−10.6
2	1.04	113.9	−10.9
3	1.02	111.9	−11.2
4	1.00	109.9	−11.6
5	0.98	108	−12.1
		Average	−11.1
2mm calc grid
PTV to Skin (mm)	C.I.	Hot Spot (%)	TPS SD underestimation(%)
0	1.09	118.4	1.7
1	1.07	116.2	1.3
2	1.05	114.1	0.8
3	1.03	112.0	0.2
4	1.01	109.8	0.4
5	0.98	107.7	1.1
		Average	0.9
3mm calc grid
PTV to Skin (mm)	C.I.	Hot Spot (%)	TPS SD underestimation(%)
0	1.10	118.9	9.9
1	1.08	116.7	9.8
2	1.05	114.6	9.6
3	1.03	112.5	9.5
4	1.01	110.4	93
5	0.99	108.3	9.1
		Average	9.5
5mm calc grid
PTV to Skin (mm)	C.I.	Hot Spot (%)	TPS SD underestimation(%)
0	1.14	122.3	16.5
1	1.11	120.1	18.1
2	1.09	117.9	19.8
3	1.07	115.6	21.8
4	1.04	113.4	24.0
5	1.02	111.2	26.6
		Average	21.1