Reproducibility and stability of voluntary deep inspiration breath hold and free breath in breast radiotherapy based on real-time 3-dimensional optical surface imaging system

Table 6 Mean value and range of CTV dosimetric parameters absolute between the original and perturbed DIBH and FB treatments

Volume	Parameters	DIBH					FB
		DIBH_org	DIBH_min	DIBH_max	p value		FB_org	FB_min	FB_max	p value
		DIBH_org	DIBH_min	DIBH_max	p1	p2	FB_org	FB_min	FB_max	p1	p2
CTV	D₉₅ (Gy)	40.10 ± 1.36	39.78 ± 0.86	40.17 ± 0.79	< 0.05	< 0.05	40.52 ± 0.19	38.46 ± 1.76	40.76 ± 0.31	< 0.05	< 0.05
	D₉₈ (Gy)	39.10 ± 1.06	38.59 ± 1.36	39.17 ± 1.09	< 0.05	< 0.05	40.09 ± 0.22	36.54 ± 2.79	40.05 ± 0.48	< 0.05	0.795
	D₉₉ (Gy)	38.37 ± 1.26	37.50 ± 2.03	38.50 ± 1.28	< 0.05	0.097	39.79 ± 0.30	35.13 ± 3.28	39.54 ± 0.59	< 0.05	0.173
	D_mean (Gy)	42.42 ± 0.14	42.26 ± 0.19	42.82 ± 0.31	< 0.05	< 0.05	43.44 ± 1.0	42.75 ± 1.01	44.02 ± 1.23	< 0.05	< 0.05
	D₂ (Gy)	43.69 ± 0.15	43.98 ± 0.40	45.31 ± 0.72	< 0.05	< 0.05	49.27 ± 2.68	48.67 ± 2.52	50.79 ± 3.17	< 0.05	< 0.05
	D_max (Gy)	44.11 ± 0.18	44.52 ± 0.55	46.19 ± 0.57	< 0.05	< 0.05	50.54 ± 2.77	49.90 ± 2.66	53.11 ± 3.67	< 0.05	< 0.05
	D₅₀ (Gy)	42.75 ± 0.14	42.32 ± 0.14	43.09 ± 0.30	< 0.05	< 0.05	42.43 ± 0.86	41.95 ± 0.95	43.06 ± 1.07	< 0.05	< 0.05
	CI	0.67 ± 0.07	0.49 ± 0.09	0.61 ± 0.06	< 0.05	< 0.05	0.67 ± 0.12	0.65 ± 0.08	0.72 ± 0.09	< 0.05	< 0.05

ISSN: 1748-717X