Diagnosing epilepsy involves a comprehensive evaluation by a neurologist, often including a detailed medical history, physical examination, and various diagnostic tests:
Neurological Examination: To assess motor skills, sensory function, reflexes, and mental status.
Electroencephalogram (EEG): This is the most common test, which measures and records the electrical activity in the brain. Abnormal brainwave patterns can indicate epilepsy. An EEG may be performed during wakefulness or sleep, and sometimes with video monitoring to capture seizures.
Brain Imaging:
Magnetic Resonance Imaging (MRI): Provides detailed images of the brain to detect structural abnormalities, tumors, or areas of scarring.
Computed Tomography (CT) Scan: Uses X-rays to create cross-sectional images of the brain, useful for identifying bleeding, tumors, or cysts.
Positron Emission Tomography (PET) Scan: Helps visualize metabolic activity in the brain, identifying areas with abnormal function.
Single-Photon Emission Computed Tomography (SPECT): Used to identify areas of blood flow during a seizure, helping to pinpoint the seizure origin.
Blood Tests: To rule out other conditions that can cause seizures, such as infections, metabolic imbalances, or genetic conditions.
Neuropsychological Tests: These assess cognitive functions like memory, attention, and language, helping to identify areas of the brain affected by seizures.