| BBB | Blood–Brain Barrier |
| CGRP | Calcitonin Gene–Related Peptide |
| CTA | Computed Tomography Angiography |
| CT | Computed Tomography |
| DWI | Diffusion-Weighted Imaging |
| FLAIR | Fluid-Attenuated Inversion Recovery (MRI sequence) |
| MHDs | Monthly Headache Days |
| MRI | Magnetic Resonance Imaging |
| PICA | Posterior Inferior Cerebellar Artery |
| PFO | Patent Foramen Ovale |
| SSEP | Somatosensory Evoked Potentials |
| SUCA | Superior Cerebellar Artery |
| TEE | Transesophageal Echocardiography |
| TIA | Transient Ischemic Attack |
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