Master's project

Question 1

T/F. In patients with TL IVDH, T2-W intramedullary hyperintensity has not been shown to correlate negatively to prognosis.

Answer 1

False, it has been.

Question 2

What is the percentage of patients who will have a successful outcome if a T2-W IH is greater than or equal to the length of L2 vertebral body?

Answer 2

55% to 76%.

Question 3

What is the percentage of patients who will have a successful outcome if a T2-W IH is not present or is less than the length of L2?

Answer 3

93 to 100%.

Question 4

Magnetization transfer measures the rate of m______ _____ between the h____ protons in low protein ____ and those protons bound to m_____ in tissue.

Answer 4

Magnetization exchange
hydrogen protons
fluid
macromolecules

Question 5

T/F. In the absence of macromolecules, the MTR will approach zero, such as in the CSF.

Answer 5

True.

Question 6

What is the magnetization transfer ratio (MTR) in the normal spinal cord?

Answer 6

40-50%.

Question 7

Diffusion tensor imaging (DTI) measures the molecular diffusion of _____ in vivo using bipolar m________ field gradient _____.

Answer 7

water
magnetic
pulses

Question 8

T/F. Magnetization transfer ratio provides information about the microstructure and physiologic state of body systems.

Answer 8

False. It’s diffusion tensor imaging.

Question 9

What is the fractional anisotropy (FA) expected in the ventricles?

Answer 9

0. There is unrestricted diffusion of water.

Question 10

T/F. A decrease in median diffusivity (MD) is associated with demyelination, inflammation, severe axonal degeneration, and edema.

Answer 10

False. An increase in MD is.