Table 2. Results of Dice-coefficient, Jaccard-Index and volume ratios for rDSA and 3D-ioUS volumes. (Due to incomplete aneurysm visualization or absent aneurysm in the field of view patients 6, 8, 9, 11, 13, 26 and 32 were excluded from calculations).

Patient	Aneurysm	Jaccard-index	Dice-coefficient	OverlapV3D-ioUS: VrDSA
1	MCA	0.76	0.87	0.93
2	MCA	0.58	0.74	0.77
3	MCA	0.59	0.74	0.68
4	MCA	0.47	0.64	0.76
5	MCA	0.45	0.62	0.86
6	AcommA	-	-	-
7	MCA	0.27	0.43	0.89
8	AcommA	-	-	-
9	AcommA	-	-	-
10	MCA	0.74	0.85	0.96
11	AcommA	-	-	-
12	AcommA.	0.43	0.60	0.93
13	AcommA	-	-	-
14	MCA	0.22	0.36	0.80
15	MCA	0.61	0.76	1.20
16	MCA	0.59	0.74	0.99
17	MCA	0.52	0.68	0.97
18	MCA	0.51	0.68	0.89
19	MCA	0.56	0.72	0.84
20	MCA	0.46	0.63	0.89
21	MCA	0.66	0.80	0.97
22	MCA	0.61	0.76	0.97
23	MCA	0.65	0.79	0.83
24	MCA	0.52	0.69	0.90
25	MCA	0.71	0.83	1.01
26	AcommA./MCA	-	-	-
27	MCA	0.70	0.82	1.06
28	AcommA.	0.61	0.76	1.08
29	MCA	0.63	0.78	1.15
30	MCA	0.54	0.70	1.13
31	AcommA	0.68	0.81	1.18
32	ICA-T	-	-	-
33	MCA	0.56	0.72	1.04
34	MCA	0.56	0.72	0.85
35	ICA-T	0.52	0.69	0.94
36	MCA	0.66	0.79	1.01
37	AcommA	0.50	0.67	1.02
38	AcommA	0.40	0.58	0.88
39	MCA	0.60	0.75	1.05
Mean		0.56	0.71	0.94

The index equals 1 if the volumes overlap completely and 0 if there is no overlap.