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. 2005 May;26(5):1012–1021.

TABLE 4:

Comparative analysis of CTA and MRA versus DSA for intracranial occlusion

Performance Measure CTA MRA
Sensitivity 71 (100) 81 (87)
Specificity 100 (100) 98 (98)
Positive predictive value 100 (100) 61 (59)
Negative predictive value 99 (100) 99 (99.5)

Note.—Data are percentages using DSA as the reference standard; numbers in parentheses are percentages corrected for DSA false-positive occlusion by consensus reading. See Tables 6 and 8 for raw data.