Sigourney's doctors think she might have a tumor,and they would like to use a brain-imaging technique that will provide them with an accurate image of her brain structure.The technique that they are most likely to use would be
A) a positron emission tomography (PET) scan.
B) a computerized tomography (CT) scan.
C) electrical stimulation of the brain (ESB).
D) an electroencephalograph (EEG) recording.

Question

Quizplus · Accepted Answer

The most accurate brain imaging technique for detecting tumors is a CT scan, which uses X-rays to generate detailed, cross-sectional images of the brain. PET scans are more commonly used to detect abnormalities in brain function, rather than structure. ESB is an invasive and relatively risky procedure that is typically only used for research or in extreme cases of surgery planning. EEG recordings provide information about brain activity, but not about brain structure.

Sigourney's Doctors Think She Might Have a Tumor,and They Would