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Methods used to study the brain's structure include computed axial tomography (CAT) scans and magnetic resonance imaging (MRI). CAT scans show the size, shape, and position of internal structures by using computer technology to combine a series of X-rays into a detailed image of the skull and brain.
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Purpose: Provide images of the structure and activity of the brain and body. Pros: Cheap, good at showing overall / average activity level of different regions / structures. Cons: Radiation exposure (X-rays + radioisotope), relatively low detail images, the patient must be lying still on the table.
MCAT Neuroimaging Techniques. Get a hint. Computerized Tomography (CT or CAT) structural imaging; creates a three-dimensional "snapshot" of the brain that appears as a series of cross-sectional images; uses a computer to combine topographical images created by X-ray absorption of an anatomical part. 1 / 6.
MCAT Brain Scan Techniques Flashcards | Quizlet. Get a hint. Electroecephalogram (EEG) - Measures electrical activity generated by neurons in the brain using electrodes placed on someone's scalp. - Used to determine brain function. - Looks at the sum total electric field that is generated from the brain.
Test Yourself - CT Brain - Quiz 2. Non-contrast CT brain: History of hypertension and sudden onset of left facial droop. What does the image show? Study the course material in the free to access tutorials and galleries sections - then sign up to take your course completion assessment.
- Used to determine brain structure - Uses radio waves to disturb a magnetic field, causing atoms in the brain to emit signals - Provides 3D snapshots of the target tissue
