Dosimetric Comparison of Volumetric Modulated Arc Therapy, Static Field Intensity Modulated Radiation Therapy, and 3D Conformal Planning for the Treatment of a Right-Sided Reconstructed Chest Wall and Regional Nodal Case

Table 1

Dosimetric comparison between 3D plans.

Structure	Parameter	PWT	30/70; P/E mix	20/80; P/E mix	IMN_IN_SCLV
PTV	D95 (%)	95.05	95.32	95.11	94.89
	V95 (%)	95.09	95.31	95.12	94.88
	HI	1.19	1.16	1.16	1.21
	CI	1.57	1.42	1.39	1.33
IMN	D95 (%)	98.17	103.1	99.13	107.01
	V95 (%)	100	100	97.62	100
Right lung	Mean (Gy)	26.76	23.22	20.68	17.23
	V40 (%)	43.32	25.42	23	16.51
	V30 (%)	50.19	34.77	30.19	25.11
	V25 (%)	52.25	40.72	34.02	28.14
	V20 (%)	54.38	48.68	39.05	31.09
	V13 (%)	58.51	62.97	50.80	37.96
	V10 (%)	61.54	68.04	59.58	44.51
	V5 (%)	73.28	82.52	82.32	79.45
Total lung	Mean (Gy)	17.12	14.88	13.30	11.18
	V40 (%)	27.34	16.06	14.52	10.43
	V30 (%)	31.76	22.01	19.1	15.92
	V25 (%)	33.09	25.74	21.51	17.81
	V20 (%)	34.45	30.80	24.71	19.72
	V13 (%)	37.10	39.93	32.17	23.96
	V10 (%)	38.99	43.06	37.72	28.15
	V5 (%)	46.57	52.08	52.1	49.93
Left lung	Mean (Gy)	0.47	0.46	0.55	0.71
	V10 (%)	0	0	0	0
	V5 (%)	0	0	0	0
Cont_breast	Mean (Gy)	0.20	0.27	0.29	0.2
	V5 (%)	0	0	0	0
Heart	Mean (Gy)	1.19	2.15	3.14	6.39
	V20 (%)	0	0.94	0.9	12.83
	V10 (%)	0	3.51	8.6	15.21
Liver	Mean (Gy)	3.59	5.21	5.12	5.12
Healthy tissue	Mean (Gy)	6.33	6.14	5.99	5.9
	V5 (%)	14.34	15.96	16.16	16.03