A brain tumor is best imaged by a(n) _______ scan.
A) fMRI
B) PET
C) CT scan
D) TMS

Question

Quizplus · Accepted Answer

A CT scan (computed tomography) is the best imaging technique for detecting the presence of a brain tumor. It uses X-rays to create cross-sectional images of the brain and is more sensitive to changes in density than an MRI or PET scan. While an MRI can also be used to visualize brain tumors, it may not be as effective at identifying subtle changes in density as a CT scan. PET scans are used to detect metabolic activity in the brain and can be helpful in determining if a tumor is malignant or benign, but are not as effective in detecting the physical presence of a tumor. TMS (transcranial magnetic stimulation) is a technique used to stimulate specific areas of the brain and is not typically used for imaging purposes. fMRI (functional MRI) is used to visualize changes in blood flow in the brain and is often used to study brain function rather than detect the presence of tumors.

A Brain Tumor Is Best Imaged by A(n) _______ Scan