Which imaging method produces a large number of X-rays interpreted by a computer to create a detailed image of brain structure?

Which imaging method produces a large number of X-rays interpreted by a computer to create a detailed image of brain structure?

• A. MRI
• B. Computed Tomography (CT) Scan
• C. PET Scan
• D. EEG

Answer: (B)

The method being described relies on taking many X-ray measurements from different angles and using a computer to reconstruct detailed cross-sectional images of brain structure. This is Computed Tomography (CT). In a CT scan, an X-ray source moves around the head and detectors capture the transmitted X-rays from numerous views. The computer then stitches these data together to produce high-resolution slices that reveal anatomy and any abnormalities. MRI uses magnetic fields and radio waves to image soft tissue without X-rays, PET scans detect metabolic activity using radioactive tracers, and EEG records electrical activity from the scalp. The description clearly matches CT, which is defined by its use of multiple X-rays and computer reconstruction to visualize brain structure.

The method being described relies on taking many X-ray measurements from different angles and using a computer to reconstruct detailed cross-sectional images of brain structure. This is Computed Tomography (CT). In a CT scan, an X-ray source moves around the head and detectors capture the transmitted X-rays from numerous views. The computer then stitches these data together to produce high-resolution slices that reveal anatomy and any abnormalities.

MRI uses magnetic fields and radio waves to image soft tissue without X-rays, PET scans detect metabolic activity using radioactive tracers, and EEG records electrical activity from the scalp. The description clearly matches CT, which is defined by its use of multiple X-rays and computer reconstruction to visualize brain structure.