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MRSO EXAM 2 QUESTIONS WITH VERIFIED ANSWERS
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MRSO EXAM 2 QUESTIONS WITH VERIFIEDANSWERS
What is the name of the gradient coil that generates sagittal and coronal images?
a. Transverse coil
b. Golay coil
c. Maxwell Coil
d. Receiver coil - ANSWER B. Golay coil ("saddle coil").
Which one of the following can withstand the highest RF heating?
a. elderly
b. adult
c. A fat adult
d. neonate - ANSWER D. neonate
Which of the following methods can be used to increase echo spacing? Select all
that apply.
a. Increase the TR.
b. Decrease the receiving bandwidth.
c. Increase the receiving bandwidth.
d. Use a receive-only coil.
e. Increase the field of view.
f. Increase the flip angle: ANSWER b, e
,Reducing the receiving bandwidth will lengthen the sample time. This may require
us to increase both the TE and the TR. Increasing the field of view also allows for
greater echo spacing.
What is the word for the variations in magnetic field strength as you approach the
MRI unit?
a. Spatial magnetic gradient
b. Gauss line
c. RF energy
d. Gradient coils - Answer a. Spatial magnetic gradient
Measured in dB/dx.
Which of the following offers the best possibility of peripheral nerve stimulation?
a. Conventional spin echo
b. Fast Spin Echo
c. Gradient Echo
d. EPI - ANSWER D. EPI
A 45-degree deflection in a tested implant shows a force equal to what?
a. 0.5 gravitational force
b. 2 Gravity Force
, c. 0.25 gravitational force
d. 1 gravitational force - ANSWER D. 1 gravitational force
4T/m is equivalent to what?
a. 4000 G/cm
b. 4G/cm
c. 40 G/cm
d. 400 G/cm - Answer d. 400 G/cm
1T = 10,000 G
1m = 100 cm
Therefore, 1 T/m=10,000G/100cm.
This indicates that 1 T/m equals 100 G/cm.
How do we compute the maximum spatial gradient?
a. dB/dx x B
b. dB/dt *W/kg
c. W/kg
d. B - ANSWER A. dB/dx x B
What group published the ACR white paper on MRI safety?
a. ACR Blue Ribbon Panel for MR Safety
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