MRI

Question 1

Formula for primary barrier thickness

Answer 1

P=BWUT/d^2

Question 2

In P=BWUT/d^2, what is B

Answer 2

Barrier transmission factor

Question 3

P=BWUT/d^2, what is W?

Answer 3

Workload

Question 4

P=BWUT/d^2, what is u?

Answer 4

use

Question 5

P=BWUT/d^2, what is t?

Answer 5

occupancy

Question 6

P=BWUT/d^2, what is d?

Answer 6

distance from target/ source of radiation

Question 7

electromagnetic property with the same directionality as the magnetic moment in an atomic nucleus

Answer 7

magnetism

Question 8

3 phases of MRI

Answer 8

magnetization, resonance, relaxation

Question 9

The magnetic moments of the hydrogen atom, which were previously going in different directions, align in the same direction when a magnetic field is applied

Answer 9

resonance

Question 10

when the external magnetic field disappears, the release of energy when and atom returns to its original state

Answer 10

relaxation

Question 11

How is MR image created?

Answer 11

imaging the energy signals generated from relaxation of the hydrogen atoms

Question 12

Can we image titanium with MRI

Answer 12

yes

Question 13

Can we image craniofacial titanium plates?

Answer 13

Need to ask manufacturer. Due to being an alloy, there could be material that is not MRI safe.