Table 2.

Performance of the combined ACR workflow on the MR-SIM and MRL testing sets based on CQC1 (the final results are in bold).

CQC1	Major-error group			Minor-error group
	initial DLAS contours	after ACM-ACR	after DL-ACR	initial DLAS contours	after DL-ACR
MR-SIM
numbers of contours improved to minor-error group	N/A	44% (177/401)*	36% (145/401)	N/A	N/A
numbers of contours improved to acceptable group	N/A	5% (22/401)	30% (119/401)	N/A	43% (320/750)
DSC	0.33 (±0.15)	0.53 (±0.17)	0.63 (±0.23)	0.71 (±0.10)	0.79 (±0.12)
MDA (mm)	7.78 (±3.02)	6.15 (±3.62)	5.33 (±4.27)	3.65 (±1.55)	3.22 (±2.24)
HD 95% (mm)	20.27 (±8.25)	17.36 (±10.24)	15.59 (±12.19)	13.66 (±6.58)	12.29 (±8.85)
sDSC	0.28 (±0.15)	0.41 (±0.19)	0.51 (±0.25)	0.55 (±0.15)	0.65 (±0.20)
APL (mm)	83.26 (±38.42)	68.70 (±42.88)	57.44 (±45.20)	83.44 (±60.80)	71.79 (±69.53)
MRL
numbers of contours improved to minor-error group numbers of contours	N/A	42% (202/485)†	35% (172/485)	N/A	N/A
numbers of contours improved to acceptable group	N/A	8% (38/485)	28% (136/485)	N/A	36% (267/732)
DSC	0.34 (±0.16)	0.54 (±0.19)	0.62 (±0.25)	0.70 (±0.10)	0.77 (±0.14)
MDA (mm)	9.64 (±5.36)	8.11 (±6.91)	7.37 (±8.23)	4.39 (±1.69)	4.13 (±2.95) p = 0.009
HD 95% (mm)	26.18 (±14.59)	24.05 (±18.49)	22.18 (±21.68)	17.34 (±7.21)	16.43 (±11.56) p = 0.017
sDSC	0.29 (±0.14)	0.43 (±0.19)	0.51 (±0.25)	0.57 (±0.14)	0.65 (±0.20)
APL (mm)	101.59 (±47.66)	81.61 (±46.35)	69.30 (±51.01)	83.43 (±67.05)	69.75 (±72.28)

Note: paired t test p values <<0.001 after each ACR step if not listed in the table (see Supplementary materials for the exact p values).

^*among these 177 contours that were improved to minor-error group by ACM-ACR, 87 (49%) were further improved to acceptable contours by DL-ACR.

^†among these 202 contours that were improved to minor-error group by ACM-ACR, 88 (44%) were further improved to acceptable contours by DL-ACR.