Table 3.

The standard deviation of the GTV volume delineations undertaken by clinicians for each patient for each modality

Patient	Standard Deviations (cm3)
	CT	CT-MR	MR
1	3.59	4.17	3.33
2	3.95	5.19	3.32
3	4.61	3.75	1.36
4	4.36	4.82	1.15
5	4.29	3.16	3.37
6	2.01	2.81	0.48
7	1.84	2.84	2.15
8	8.65	4.87	2.99
9	5.63	3.91	2.40
10	1.62	0.83	0.93
11	8.59	4.42	5.93
Mean	4.47	3.71	2.49