Table 3.
Features from diffusion measures | Number of overlapped features | Accuracy (%) | Sensitivity (%) | Specificity (%) | PPV (%) | NPV (%) |
---|---|---|---|---|---|---|
FA | 1,325 | 69.2 | 76.5 | 60.5 | 69.6 | 68.4 |
MD | 663 | 62.8 | 70.6* | 53.5 | 64.3 | 60.5 |
AD | 0 | 30.9 | 38.5 | 25.5 | 26.8 | 36.8 |
RD | 1,325 | 64.9* | 74.5* | 55.3 | 62.5 | 68.4* |
FA&MD | 1839 | 78.7** | 87.5* | 69.6* | 75.0* | 84.2** |
FA&RD | 2,286 | 74.5** | 83.3* | 65.2 | 71.4* | 78.9* |
MD&RD | 1,606 | 84.0*** | 90.2** | 76.7** | 82.1** | 86.8** |
FA&MD&RD | 2,758 | 84.0*** | 90.2*** | 76.7*** | 82.1*** | 86.8*** |
FA&MD&AD&RD | 2,758 | 84.0*** | 90.2*** | 76.7*** | 82.1*** | 86.8*** |
p < .01.
p < .005.
p < .001, with 5,000 permutation tests
AD = axial diffusivity; FA = fractional anisotropy; MD = mean diffusivity; MOr = migraine without aura, recovering; MOp = migraine without aura, persisting; NPV = negative predictive value; PPV = positive predictive value; RD = radial diffusivity.