Diagnostic Value of Low-Dose 256-Slice Spiral CT Angiography, MR Angiography, and 3D-DSA in Cerebral Aneurysms

Table 1

Diagnostic results of CTA, MRA, and DSA in cerebral aneurysms (, %).

Examination method	Positive ()	Negative ()	Specificity (%)	Sensitivity (%)
CTA	82	10	66.7	91.0
MRA	75	17	66.7	83.1
DSA	89	3	—	96.7