Clinical Science Practice Test 8

1. fMRI is mostly dependent on which parameter?

T1 time

T1 + T2 time

T2* time

T2 time

2. The radiodensity or the radiopacity is measured in _________

g/m³

3. In the cardiovascular system, which is more affected by the radiations?

Artery

Vein

Cardiac Muscles

Capillaries

4. Which element does the fMRI target when taking the scan?

Oxygen

Nitrogen

Carbon

Hydrogen

5. CAT scan is essentially _________

x-ray of soft tissues

a detailed x-ray

x-ray of brain

a finer X-ray of bones

6. In a transverse section of the CT of the brain, a ring of the cranium is seen which is absent or not so prominent in MRI. What is this reason?

Cranial ring is made of bones which do not have water, so it cannot give an MRI

The cranium is negated out while imaging

The EM waves received by MRI does not have sufficient magnetic strength to view the bones

MRI images soft tissues so it does not image the cranium properly. Thus, the cranial ring is more prominent in CT than in MRI

7. If the XY grid is selected in MRI then the slice selection is in which plane?

Y plane

Z plane

X plane

XY plane

8. What does the ‘f’ in the fMRI stand for?

Fast

Fractional

Fundamental

Functional

9. Which of the following radiations are used for imaging purposes?

beta

gamma

alpha

delta

10. fMRI is mostly used for research than diagnosis.

True

False