Table 2. Patients by the automatic CMB detection software versus human rater.

Variables	Automatic CMB detection software	Radiologist	P value
Total, n	265	265	–
True positive, n	145	139	–
False positive, n	27	5	–
False negative, n	3	9	–
True negative, n	90	112	–
Sensitivity (95% CI) (%)	98.0 (95.7–100.0)	93.9 (90.0–97.8)	0.656
Specificity (95% CI) (%)	76.9 (69.2–84.7)	95.7 (92.0–99.4)	0.212
Rule out patients without CMBs, n	93	117	0.016

P values are for the chi-squared test. CMB, cerebral microbleed; CI, confidence interval.