Table 1.

Dice coefficients for comparisons between various contouring methods in CT1 internal, CT1 and CT3 external validation (R = right, L = left).

	CT1 internal validation		CT1 external validation		CT3 external validation
MAN-AUTO R	0.95	0.01	0.93	0.02	0.95	0.02
MAN-AUTO L	0.95	0.02	0.92	0.02	0.94	0.02
MAN-AUTOMAN R	0.96	0.01	0.95	0.01	0.96	0.01
MAN-AUTOMAN L	0.96	0.01	0.95	0.01	0.96	0.01
AUTO-AUTOMAN R	0.98	0.01	0.96	0.02	0.97	0.02
AUTO-AUTOMAN L	0.98	0.02	0.96	0.02	0.97	0.02
Inter-observer variability			0.98	0.02	0.97	0.02