Summary of the percentage of voxels exhibiting significant differences in the comparisons between groups (M and HC) and sessions (inter, postov, pre, pm, ict, post) for each diffusion parameter (FA, MD, AD, RD, MK, AK, and RK) and both diffusion models (DTI and DKI)
| Comparisons | M-inter vs HC-postov | M-pre vs HC-pm | M-ict vs HC-pm | M-post vs HC-pm | ||||
|---|---|---|---|---|---|---|---|---|
| DTI | DKI | DTI | DKI | DTI | DKI | DTI | DKI | |
| FA | - | - | - | - | - | ↓ (28%) | - | - |
| MD | - | - | - | - | - | - | - | - |
| AD | ↓ (11%) | ↓ (36%) | - | - | - | - | - | - |
| RD | - | - | - | - | - | - | - | - |
| MK | - | - | - | - | - | - | - | - |
| AK | - | - | - | - | - | - | - | - |
| RK | - | - | - | - | - | - | - | - |
The results are corrected for age effects. Groups and sessions: M-inter, migraine interictal; M-pre, migraine preictal; M-ictal, migraine ictal; M-post, migraine postictal; HC-postov, healthy control postovulation; HC-pm, healthy control perimenstrual. Diffusion models: DTI, diffusion tensor imaging; DKI, diffusional kurtosis imaging. Metrics: FA, fractional anisotropy; MD, mean diffusivity; AD, axial diffusivity; RD, radial diffusivity; MK, mean kurtosis; AK, axial kurtosis; RK, radial kurtosis. Symbols: ↓, decrease; ↑, increase; -, no significant change.