Validation of an elastic registration technique to estimate anatomical lung modification in Non-Small-Cell Lung Cancer Tomotherapy

Table 2 Target Registration Error.

		kVCT/1st MVCT			kVCT/2nd MVCT			kVCT/3rd MVCT			mean values
		#	TRE(mm)		#	TRE(mm)		#	TRE(mm)		TRE(mm)
patient	registration	mrks	mean ± SD	max	mrks	mean ± SD	max	mrks	mean ± SD	max	mean ± SD	max
1.	rigid	4	5.16 ± 1.16	6.56	4	9.17 ± 5.46	16.72	4	6.43 ± 2.65	10.24	6.92 ± 2.05	16.72
	elastic		2.42 ± 0.73	3.35		4.18 ± 2.17	7.28		4.11 ± 2.17	7.20	3.57 ± 1.00	7.28
2.	rigid	6	3.2 ± 1.60	5.26	6	4.2 ± 2.19	6.42	4	4.4 ± 4.13	10.39	3.93 ± 0.64	10.39
	elastic		3.46 ± 0.92	4.67		3.02 ± 1.26	4.96		4.29 ± 3.58	9.63	3.59 ± 0.64	9.63
3.	rigid	5	6.41 ± 2.68	10.17	4	2.93 ± 0.90	4.27	4	4.44 ± 1.66	6.81	4.59 ± 1.75	10.17
	elastic		5.51 ± 2.44	8.51		2.81 ± 1.06	4.09		4.2 ± 1.45	6.15	4.17 ± 1.35	8.51
4.	rigid	5	5.39 ± 2.51	8.33	5	7.95 ± 2.62	11.13	4	9.86 ± 5.34	14.46	7.73 ± 2.24	14.46
	elastic		3.82 ± 2.89	8.76		4.83 ± 3.73	11.22		5.1 ± 2.87	8.35	4.58 ± 0.67	11.22
5.	rigid	5	3.08 ± 1.13	4.57	4	2.87 ± 1.38	3.83	2	2.99 ± 1.64	4.15	2.98 ± 0.11	4.57
	elastic		3.16 ± 0.94	4.55		2.14 ± 1.00	3.63		2.52 ± 2.13	4.02	2.61 ± 0.52	4.55

ISSN: 1748-717X