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 3

Dosimetric comparison between VMAT plans.

Structure	Parameter	VMAT_2F; 190°	VMAT_2F; 220°	VMAT_2F; 240°	VMAT_3F; 190°
PTV	D95 (%)	95.18	96.52	96.24	97.81
	V95 (%)	95.22	96.44	96.11	97.08
	HI	1.17	1.19	1.19	1.19
	CI	1.13	1.12	1.13	1.16
IMN	D95 (%)	102.25	103.45	103.56	102.54
	V95 (%)	100	100	100	100
Right lung	Mean (Gy)	13.57	14.63	15.08	14.39
	V40 (%)	8.75	9.57	9.61	9.15
	V30 (%)	13.72	14.89	15.68	14.63
	V25 (%)	16.66	18.25	19.07	17.83
	V20 (%)	20.24	22.34	23.25	22.16
	V13 (%)	29.34	33.18	34.07	33.07
	V10 (%)	37.68	42.43	43.38	41.15
	V5 (%)	75.99	82.03	90.17	85.1
Total lung	Mean (Gy)	9.63	10.37	10.73	10.32
	V40 (%)	5.54	6.05	6.08	5.8
	V30 (%)	8.7	9.39	9.92	9.28
	V25 (%)	10.53	11.55	12.02	11.3
	V20 (%)	12.79	14.21	14.69	14.04
	V13 (%)	18.52	21.06	21.7	20.99
	V10 (%)	23.91	27.04	27.48	26.06
	V5 (%)	50.12	55.23	61.22	57.71
Left lung	Mean (Gy)	2.83	3.02	3.23	3.28
	V10 (%)	0	0	0	0
	V5 (%)	4.44	6.34	8.23	9.77