A factor that governs the efficiency of the passage of current is the inherent
resistance of the coil. Which law is used to determine the degree of resistance along
a wire?
a) Faraday's law
b) Tesla's law
c) Ohm's law
d) Helmholtz's law
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c) Ohm's law
If a radiologist asks that you run slices parallel (sagittal) to the ACL, a useful landmark
on an axial image that typically runs parallel to the ACL is the:
a) Patella
b) PCL
,c) Edge of the lateral condyle
d) Edge of the medial femoral condyle
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c) Edge of the lateral condyle
True or False? if a patient is nervous for their exam it is ok for the tech to comfort the
patient by talking about there own personal religious beliefs?
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False: it is not ok to speak about religion because your opinions may
impose the patients personal belief system.
What is the formula for pixel size?
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FOV/matrix=pixel size
Which of the following artifacts occur in the frequency axis?
a) phase mismapping
b) zipper artifact
c) chemical shift
d) both b and c
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, d) both b and c
Contrast in IR sequences are controlled by what?
A: TE
B: TR
C: TI
D: A & C
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D: A & C
Increasing which of the following can improve image quality but may also increase
scan time?
a) Field of View (FOV)
b) Slice thickness
c) Flip angle
d) Signal-to-Noise Ratio (SNR)
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d) Signal-to-Noise Ratio (SNR)
According to Faraday's law, the component of the magnetization in the _______________
plane induces a current in RF receiver coils.
a) longitudinal
b) scan
c) transverse
d) orthogonal
, Give this one a try later!
c) transverse
T/F: Sprains, strains, and other musculoskeletal problems are the leading causes of
disability for professionals working the health care.
Give this one a try later!
True
Where is padding necessary for patient safety when in the MRI scanner?
a) Between arms and side of the bore
b) Between the knees
c) Between arms and the body
d) Under the elbows
e) All of the above
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e : All of the above
What mainly controls spatial resolution in MRI?
a) The frequency of the RF pulse
b) The strength of the main magnetic field
c) The resolution of the computer's gray scale
d) The number of phase-encoding pulses
Give this one a try later!
resistance of the coil. Which law is used to determine the degree of resistance along
a wire?
a) Faraday's law
b) Tesla's law
c) Ohm's law
d) Helmholtz's law
Give this one a try later!
c) Ohm's law
If a radiologist asks that you run slices parallel (sagittal) to the ACL, a useful landmark
on an axial image that typically runs parallel to the ACL is the:
a) Patella
b) PCL
,c) Edge of the lateral condyle
d) Edge of the medial femoral condyle
Give this one a try later!
c) Edge of the lateral condyle
True or False? if a patient is nervous for their exam it is ok for the tech to comfort the
patient by talking about there own personal religious beliefs?
Give this one a try later!
False: it is not ok to speak about religion because your opinions may
impose the patients personal belief system.
What is the formula for pixel size?
Give this one a try later!
FOV/matrix=pixel size
Which of the following artifacts occur in the frequency axis?
a) phase mismapping
b) zipper artifact
c) chemical shift
d) both b and c
Give this one a try later!
, d) both b and c
Contrast in IR sequences are controlled by what?
A: TE
B: TR
C: TI
D: A & C
Give this one a try later!
D: A & C
Increasing which of the following can improve image quality but may also increase
scan time?
a) Field of View (FOV)
b) Slice thickness
c) Flip angle
d) Signal-to-Noise Ratio (SNR)
Give this one a try later!
d) Signal-to-Noise Ratio (SNR)
According to Faraday's law, the component of the magnetization in the _______________
plane induces a current in RF receiver coils.
a) longitudinal
b) scan
c) transverse
d) orthogonal
, Give this one a try later!
c) transverse
T/F: Sprains, strains, and other musculoskeletal problems are the leading causes of
disability for professionals working the health care.
Give this one a try later!
True
Where is padding necessary for patient safety when in the MRI scanner?
a) Between arms and side of the bore
b) Between the knees
c) Between arms and the body
d) Under the elbows
e) All of the above
Give this one a try later!
e : All of the above
What mainly controls spatial resolution in MRI?
a) The frequency of the RF pulse
b) The strength of the main magnetic field
c) The resolution of the computer's gray scale
d) The number of phase-encoding pulses
Give this one a try later!
