Dosimetric comparison and biological evaluation of fixed-jaw intensity-modulated radiation therapy for T-shaped esophageal cancer

Table 5 Comparisons of TCP and NTCP. All values are shown as the mean ± standard deviation

	JT IMRT	SJ IMRT	JT VMAT	FJ IMRT	ANOVA p value	Post hoc p value
	JT IMRT	SJ IMRT	JT VMAT	FJ IMRT	ANOVA p value	FJ IMRT versus JT IMRT	FJ IMRT versus SJ IMRT	FJ IMRT versus JT VMAT
TCP_PTV-G (%)	65.45 ± 0.70	65.43 ± 0.72	65.51 ± 0.64	65.48 ± 0.56	0.969	0.908	0.756	0.862
TCP_PTV-C (%)	56.60 ± 2.53	56.58 ± 2.55	56.63 ± 2.46	56.66 ± 2.37	0.999	0.918	0.875	0.972
NTCP_{total_lung} (%)	5.04 ± 1.83	5.51 ± 2.06	4.55 ± 1.56	4.29 ± 1.41	0.021	0.044	0.004	0.537
NTCP_{spinal_cord} (%)	0.69 ± 0.23	0.73 ± 0.24	0.80 ± 0.34	0.70 ± 0.35	0.442	0.800	0.718	0.202

TCP, tumor control probability; NTCP, normal tissue complication probability; JT IMRT, jaw-tracking intensity-modulated radiation therapy; SJ IMRT, static jaw intensity-modulated radiation therapy; JT VMAT, jaw-tracking volumetric modulated arc therapy; FJ IMRT, fixed-jaw intensity-modulated radiation therapy

ISSN: 1748-717X