TABLE 3:

Accuracy of initial interpretations of 1324 emergency cranial CT scans by residents

Diagnosis	Findings
	True-Positive	False-Positive	False-Negative	True-Negative
Acute cerebral ischemia	7	2	1	1314
Hemorrhage	27	10	2	1285

Note.—For acute cerebral ischemia, specificity and sensitivity were 87.5% and 99.8%, respectively; for hemorrhage, 93.1% and 99.2%, respectively.