| CEA | Carotid endarterectomy |
| TCD | Transcranial Doppler |
| MCA | Middle cerebral artery |
| MES | Microembolic signals |
| DWI | Diffusion-weighted imaging |
| CVR | Cerebrovascular reactivity |
| CBF | Cerebral blood flow |
| SPECT | Single-photon emission computed tomography |
| ICA | Internal carotid artery |
| EEG | Electroencephalography |
| IMP | [123I]N-isopropyl-p-iodoamphetamine |
| ROI | Region-of-interest |
| SD | Standard deviation |
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