TABLE 1:

MR angiography compared with conventional angiography for the detection of intracranial collaterals

Author*	No. of Subjects	AcoA		PcoA
		Sensitivity, %	Specificity, %	Sensitivity, %	Specificity, %
Patrux et al (4)	54	89	100	81	100
Stock et al (5)	62	67	73	75	93

^*Numbers in parentheses are reference citations.