Which imaging technique is used mainly to show brain anatomy rather than function?

• A. EEG
• B. PET
• C. MRI
• D. fMRI

Answer: (C)

MRI focuses on brain structure. It uses strong magnetic fields and radio waves to produce high-resolution images of soft tissues, giving detailed pictures of brain anatomy such as the shape, size, and integrity of structures like gray and white matter, ventricles, and any lesions.

EEG measures electrical activity over time, so it’s about function and timing rather than anatomy. PET uses radioactive tracers to show metabolic activity, which reveals functional processes. Functional MRI maps changes in blood flow related to neural activity, also emphasizing function rather than static structure.

So MRI is the go-to technique for detailed anatomy, making it the best choice for showing brain structure rather than function.