Table 3.

Association between degree of confidence in feeding artery detection and lesion size category and image quality grades

	Definite	Probable	Intermediate probability	Not feeding A.	P value
3D_observer1	106 (57.3%)	26 (14.1%)	31(16.8%)	22(11.9%)
Lesion size >2 cm ≤ 2 cm	101 (70.1%) 5 (12.2%)	16 (11.1%) 10 (24.4%)	10 (6.9%) 21 (51.2%)	17 (11.8%) 5 (12.2%)	0.0001
3D quality Subsegment Segmental Lobar	70 (56%) 36 (63.2%) 0	21 (16.8%) 5 (8.8%) 0	22 (17.6%) 9 (15.8%) 0	12(9.6%) 7 (12.3%) 3 (100%)	0.0001
DSA_observer1	94(50.8%)	38 (20.5%)	12 (6.5%)	41 (22.2%)
Lesion size >2 cm ≤2 cm	85 (59%) 9 (22%)	33 (22.9%) 5 (12.2%)	8 (5.6%) 4 (9.8%)	18 (12.5%) 23 (56.1%)	0.0001
DSA quality Subsegment Segmental Lobar	78 (51.7%) 16 (48.5%) 0	30 (19.9%) 7 (21.2%) 1(100%)	9(6%) 3 (9.1%) 0	34(22.5%) 7 (21.2%) 0	0.62
3D_observer2	98 (53%)	34 (18.4%)	28 (15.1%)	25 (13.5%)
Lesion size >2 cm ≤2 cm	93 (64.6%) 5 (12.2%)	26 (18.1%) 8 (19.5%)	6 (4.2%) 22 (53.7%)	19 (13.2%) 6 (14.6%)	0.0001
3D quality Subsegment Segmental Lobar	65(52%) 33(57.9%) 0	26 (20.8%) 8 (14%) 0	19 (15.2%) 9 (15.8%) 0	15 (12%) 7 (12.3%) 3 (100%)	0.002
DSA_observer2	100 (54.1%)	33 (17.8%)	8 (4.3%)	44 (23.8%)
Lesion size >2 cm ≤2 cm	89 (61.8%) 11 (26.8%)	30 (20.8%) 3 (7.3%)	3 (2.1%) 5 (12.2%)	22 (15.3%) 22 (53.7%)	0.0001
DSA quality Subsegment Segmental Lobar	84 (55.6%) 16 (48.5%) 0	23 (15.2%) 9 (27.3%) 1 (100%)	7 (4.6%) 1 (3%) 0	37 (24.5%) 7 (21.2%) 0	0.288

Bold numbers are values with statistically significant difference, P < 0.05