Question

Arrange the following imaging techniques in the correct order of spatial resolution, from highest to lowest:

a) MRI > fMRI > PET > CAT
b) CAT > PET > fMRI > MRI
c) fMRI > MRI > CAT > PET
d) PET > CAT > MRI > fMRI

Answer 1

The correct order of spatial resolution for the given imaging techniques is: PET > CAT > MRI > fMRI.

Step-by-step explanation:

The correct order of spatial resolution for the given imaging techniques is: d) PET > CAT > MRI > fMRI.

Positron emission tomography (PET) has the highest spatial resolution, which allows for detailed imaging of the physiological activity of organs. Next is computed tomography (CT) scan, followed by magnetic resonance imaging (MRI), and finally functional magnetic resonance imaging (fMRI) with the lowest spatial resolution.

For example, PET scans use radiopharmaceuticals to create images of active blood flow, providing detailed information about the physiological processes in the body.