Table 1.

Tumour location, classification and volumes

Study (scan) ID	Location	Classification	Internal target volume (cm3)	Planning target volume (cm3)
1, 2	RUL	Peripheral	3.45	15.69
3, 4	RML	Central	1.78	5.43
5, 6	RUL	Peripheral	4.16	37.89
7, 8	RUL	Peripheral	6.28	47.99
9, 10	LLL	Peripheral	63.73	145.99
11, 12, 13	RUL	Peripheral	17.12	34.89
14, 15, 16, 17, 18, 19, 20	RUL	Peripheral	38.28	61.25
21	LLL	Peripheral	3.86	21.22
22	LUL	Peripheral	2.44	10.34
23	RLL	Peripheral	0.82	8.60
24	LLL	Peripheral	2.76	61.94
25	RUL	Peripheral	12.18	43.69
26	RLL	Peripheral	13.94	27.60
27	LLL	Peripheral	5.13	11.76
28	LUL	Peripheral	3.70	27.73
29	RUL	Peripheral	17.46	49.59
30	LLL	Peripheral	14.26	53.80

ID, identification number; LLL, left lower lobe; LUL, left upper lobe; RLL, right lower lobe; RML, right middle lobe; RUL, right upper lobe.