Neurorad 2

Question 1

In medicine, MRI is usually tailored to image…

Answer 1

hydrogen

Question 2

When a person is placed in a strong magnetic field, their protons…

Answer 2

align in the magnetic field

Question 3

We send radiofrequency pulses into the protons of MRI to give them energy and create their alignments. The spinning magnetic fields induce… detected by an antenna of the MRI called…

Answer 3

electrical current

surface coil

Question 4

The surface coils of MRI detect eletrical signals from those protons being manipulated, which are now called…

Answer 4

signal intensity

Question 5

What three locations in the brain will often have abnormality when associated with MS?

Answer 5

• middle cerebellar peduncle
• lateral ventricle (perpendicular growth, flame-like)
• corpus callosum

Question 6

Midline shift will make the septum pellucidum not centered, and cause…

Answer 6

subfalcine herniation

Question 7

What kind of hydrocephalus is normal pressure hydrocephalus?

Answer 7

communicating

Question 8

Pituitary adenoms are more likely to be (microadenoma/macroadenoma) and they most often present as…

Answer 8

Macroadenomas

compression of optic chiasm causing vision ssx