Table 3.
Note.- *p < 0.05 for Fisher's exact test. TH = tonsillar herniation, LIFSV = loss of intraarterial flow signal void, CH = cortical high signal intensity, T2WI = T2 weighted image, HS = high signal intensity, DWI = diffusion-weighted image, LIAFSI = loss of intracranial arterial flow signal intensity, MRA = magnetic resonance angiography, BTCVS = bilateral transcerebral and cortical vein sign, GRE = T2*-weighted gradient recalled echo, SWI = susceptibility weighted image, PPV = positive predictive value, NPV = negative predictive value