Table 4.

Diagnostic testing of Jet-like appearance for predicting ICAS-O.

	Jet-like infusion sign, n	Sensitivity 95% CI	Specificity 95% CI	Positive predictive value, 95% CI	Negative predictive value, 95% CI	Accuracy
All patients (n = 164)	34	0.73 (0.56, 0.85)	0.95 (0.90, 0.98)	0.83 (0.68, 0.92)	0.92 (0.87, 0.95)	0.90 (0.84, 0.94)
MCA origin occlusion (n = 22)	15	1.00 (0.77, 1.00)	0.87 (0.47, 1.00)	0.93 (0.69, 0.99)	1.00	0.96 (0.77, 1.00)
M1 trunk (n = 36)	7	0.40 (0.12, 0.74)	0.88 (0.70, 0.98)	0.57 (0.26, 0.83)	0.79 (0.69, 0.87)	0.75 (0.58, 0.88)
ICA supraclinoid (n = 23)	4	0.50 (0.07, 0.93)	0.89 (0.67, 0.98)	0.17 (0.05, 0.39)	0.50 (0.16, 0.84)	0.83 (0.61, 0.95)

ICAS-O, intracranial atherosclerotic stenosis occlusion; MCA, middle cerebral artery; M1, first segment of middle cerebral artery; ICA, internal carotid artery.