TABLE 3.

Interobserver variation of radiation oncologists (ROs) and the comparison with deep learning (DL) results

		dCTV2				pCTV1
		Case 1	Case 2	Case 3	Case 4	Case 1	Case 2	Case 3	Case 4	Case 5	Case 6
DSC	DL	0.767	0.686	0.732	0.837	0.830	0.867	0.826	0.871	0.885	0.870
	RO1	0.474	0.474	0.498	0.529	0.811	0.840	0.794	0.867	0.858	0.840
	RO2	0.525	0.429	0.491	0.522	0.746	0.815	0.768	0.853	0.873	0.846
	RO3	0.695	0.741	0.662	0.751	0.765	0.834	0.812	0.821	0.820	0.824
MSD (mm)	DL	1.586	2.878	1.867	0.934	0.928	1.008	1.487	1.110	0.833	1.039
	RO1	3.982	4.632	3.019	3.592	1.090	1.180	1.392	1.080	0.959	1.263
	RO2	5.520	7.127	6.001	4.286	1.523	1.416	1.472	1.074	0.854	1.115
	RO3	1.792	1.805	2.190	1.411	1.404	1.231	1.502	1.366	1.301	1.396

Abbreviations: dCTV, clinical tumor volume for definitive radiotherapy; DSC, dice similarity coefficient; MSD, mean surface distance; pCTV, clinical tumor volume for postoperative radiotherapy.