Answer
Computed tomography (CT) scans are used primarily for diagnosing lung cancers, kidney cancers, and coronary artery disease. Positive Emission Tomography(PET) scanning would give a better representation of brain activity and metabolism. Even better would be the use of Functional Magnetic resonance Imaging (fMRI) to study brain activity.
Work Step by Step
Compute Tomography is useful in the diagnosis of cancer and other diseases. Positive Emission Tomography (PET) and functional Magnetic Resonance Imaging (fMRI) are better imaging modality in the study of brain activity and metabolism.