ARRT MRI Mock Registry
_______ is whilst most effective half the views of okay-area are crammed within the frequency
axis.
A. Anti aliasing
B. Parallel imaging
C. Half fourier
D. Partial or fractional echo
E. 1/2 TE (TAU) - ANS-Partial or fractional echo
________ sequences use T1 gradient echoes with TR and FA alternatives to suppress signal
from desk bound tissues, visualizing flowing blood by waft-associated enhancement, whereas
__________ sequences use T2 gradient echoes with parameter choices that suppress desk
bound tissue and depend upon pace-brought on section shifts for vascular sign.
A. CE MRA; PC MRA
B. TOF MRA; CE MRA
C. PC MRA; TOF MRA
D. TOF MRA; PC MRA
E. PC MRA; CE MRA - ANS-TOF MRA; PC MRA
___________ could be used to line the walls and/or floors of the MR magnet room to lessen the
fringe subject, and is defined as __________ protective.
A. Copper; active
B. Steel; lively
C. Copper; passive
D. Steel; passive
E. Lead; energetic - ANS-Steel; passive
A drawback of TOF MRA is high signal in some background tissues. To reduce sign from
historical past tissues, TE ought to be decided on that enable the indicators from fats and water
to be:
A. Presaturated
B. Nulled
C. In section
D. Out of phase - ANS-Out of phase
A gradient echo collection in which all the last residual transverse magnetization is eliminated
previous to the subsequent excitation pulse is called:
A. Incoherent or spoiled
B. Steady nation
C. Magnetization prepped
D. Dual IR - ANS-Incoherent or spoiled
A magnetic vector possesses attributes of each __________ and _____________.
A. Strength; importance
B. Direction; reason
, C. Strength; go with the flow
D. Magnitude; route - ANS-Magnitude; route
A principal advantage of a 2D time of flight over a 3-D time of flight series is the capability to:
A. Determine the suitable, accurate percent of stenosis
B. Better picture retrograde drift
C. Complete photo acquisition in two times the time
D. Image large areas with out saturation of flowing blood - ANS-Image large regions with out
saturation of flowing blood
A slender receiver bandwidth:
A. Should be used inside the presence of steel artifacts
B. Reduces SNR
C. Decreases susceptibility artifact
D. Increases susceptibility artifact
E. B and D - ANS-Increases susceptibility artifact
A remedy for a Gibbs truncation artifact would be:
A. Increase the sector of view
B. Reduce the number of phase encodings
C. Increase the quantity of segment encodings
D. Decrease the TE - ANS-Increase the quantity of segment encodings
A STIR sequence with a TI time of 160 ms will null sign from fats at what area energy?
A. Zero.5T
B. 0.8T
C. 1.0T
D. 1.5T
E. Three.0T - ANS-1.5T
A method applied to reduce the MRI scan time which calls for using an array coil is:
A. Half Fourier
B. Parallel imaging
C. Half NEX
D. Rectangular FOV
E. Partial / Fractional echo - ANS-Parallel imaging
A technologist may be accredited to administer oxygen in an emergency situation. The most
common charge used is:
A. 2L/min
B. 5L/min
C. 10L/min
D. 20L/min - ANS-2L/min
Acquiring a piece more than half the segment ok-space samples, then interpolating the facts
with zeroes for the closing half of is a way known as:
A. Half Fourier
B. Fast spin echo
C. Zero Fill
D. Spoiled Gradient Echo
E. All of the above
, F. A, C and/or D best
G. A and/or C handiest - ANS-A and/or C simplest
Active protecting can be defined as:
A. Copper lining in the walls of the scanner room
B. Performing sturdy prescan measurements for the purpose of discipline homogeneity
C. Steel lining in the walls of the scanner room
D. Superconducting windings within the MR scanner, decreasing the perimeter magnetic
subject
E. Monthly adjustments made to the magnetic field for the reason of discipline uniformity -
ANS-Superconducting windings in the MR scanner, reducing the fringe magnetic subject
All of the subsequent are examples of INTRINSIC comparison parameters in tissues EXCEPT:
A. Proton density
B. ADC (apparent diffusion coefficient)
C. T2 time of tissue
D. T1 time of tissue
E. TR - ANS-TR
All of the following artifacts besides ________ occur along the section encoding axis.
A. Aliasing
B. Ghosting
C. Wrap around
D. Chemical shift - ANS-Chemical shift
All of the subsequent incorporate the biliary tree EXCEPT:
A. Left hepatic duct
B. Right hepatic duct
C. Common bile duct
D. Splenic duct
E. Pancreatic duct - ANS-Splenic duct
All of the subsequent would resource in reducing scan time EXCEPT:
A. Increasing parallel imaging issue
B. Reduction in ETL
C. Reduction in NEX
D. Utilizing the coarsest matrix viable
E. Enabling half of-fourier choice
F. Reducing TR - ANS-Reduction in ETL
All of the subsequent yield a higher signal-to-noise ratio EXCEPT:
A. Increase in TR
B. Larger FOV
C. Higher NEX
D. Decrease in ETL
E. Increase in TE
F. Reduction in segment matrix - ANS-Increase in TE
An destructive response or hardship as a result of remedy from a healthcare expert is known as:
A. Anaphylactic
B. Nosocomial
_______ is whilst most effective half the views of okay-area are crammed within the frequency
axis.
A. Anti aliasing
B. Parallel imaging
C. Half fourier
D. Partial or fractional echo
E. 1/2 TE (TAU) - ANS-Partial or fractional echo
________ sequences use T1 gradient echoes with TR and FA alternatives to suppress signal
from desk bound tissues, visualizing flowing blood by waft-associated enhancement, whereas
__________ sequences use T2 gradient echoes with parameter choices that suppress desk
bound tissue and depend upon pace-brought on section shifts for vascular sign.
A. CE MRA; PC MRA
B. TOF MRA; CE MRA
C. PC MRA; TOF MRA
D. TOF MRA; PC MRA
E. PC MRA; CE MRA - ANS-TOF MRA; PC MRA
___________ could be used to line the walls and/or floors of the MR magnet room to lessen the
fringe subject, and is defined as __________ protective.
A. Copper; active
B. Steel; lively
C. Copper; passive
D. Steel; passive
E. Lead; energetic - ANS-Steel; passive
A drawback of TOF MRA is high signal in some background tissues. To reduce sign from
historical past tissues, TE ought to be decided on that enable the indicators from fats and water
to be:
A. Presaturated
B. Nulled
C. In section
D. Out of phase - ANS-Out of phase
A gradient echo collection in which all the last residual transverse magnetization is eliminated
previous to the subsequent excitation pulse is called:
A. Incoherent or spoiled
B. Steady nation
C. Magnetization prepped
D. Dual IR - ANS-Incoherent or spoiled
A magnetic vector possesses attributes of each __________ and _____________.
A. Strength; importance
B. Direction; reason
, C. Strength; go with the flow
D. Magnitude; route - ANS-Magnitude; route
A principal advantage of a 2D time of flight over a 3-D time of flight series is the capability to:
A. Determine the suitable, accurate percent of stenosis
B. Better picture retrograde drift
C. Complete photo acquisition in two times the time
D. Image large areas with out saturation of flowing blood - ANS-Image large regions with out
saturation of flowing blood
A slender receiver bandwidth:
A. Should be used inside the presence of steel artifacts
B. Reduces SNR
C. Decreases susceptibility artifact
D. Increases susceptibility artifact
E. B and D - ANS-Increases susceptibility artifact
A remedy for a Gibbs truncation artifact would be:
A. Increase the sector of view
B. Reduce the number of phase encodings
C. Increase the quantity of segment encodings
D. Decrease the TE - ANS-Increase the quantity of segment encodings
A STIR sequence with a TI time of 160 ms will null sign from fats at what area energy?
A. Zero.5T
B. 0.8T
C. 1.0T
D. 1.5T
E. Three.0T - ANS-1.5T
A method applied to reduce the MRI scan time which calls for using an array coil is:
A. Half Fourier
B. Parallel imaging
C. Half NEX
D. Rectangular FOV
E. Partial / Fractional echo - ANS-Parallel imaging
A technologist may be accredited to administer oxygen in an emergency situation. The most
common charge used is:
A. 2L/min
B. 5L/min
C. 10L/min
D. 20L/min - ANS-2L/min
Acquiring a piece more than half the segment ok-space samples, then interpolating the facts
with zeroes for the closing half of is a way known as:
A. Half Fourier
B. Fast spin echo
C. Zero Fill
D. Spoiled Gradient Echo
E. All of the above
, F. A, C and/or D best
G. A and/or C handiest - ANS-A and/or C simplest
Active protecting can be defined as:
A. Copper lining in the walls of the scanner room
B. Performing sturdy prescan measurements for the purpose of discipline homogeneity
C. Steel lining in the walls of the scanner room
D. Superconducting windings within the MR scanner, decreasing the perimeter magnetic
subject
E. Monthly adjustments made to the magnetic field for the reason of discipline uniformity -
ANS-Superconducting windings in the MR scanner, reducing the fringe magnetic subject
All of the subsequent are examples of INTRINSIC comparison parameters in tissues EXCEPT:
A. Proton density
B. ADC (apparent diffusion coefficient)
C. T2 time of tissue
D. T1 time of tissue
E. TR - ANS-TR
All of the following artifacts besides ________ occur along the section encoding axis.
A. Aliasing
B. Ghosting
C. Wrap around
D. Chemical shift - ANS-Chemical shift
All of the subsequent incorporate the biliary tree EXCEPT:
A. Left hepatic duct
B. Right hepatic duct
C. Common bile duct
D. Splenic duct
E. Pancreatic duct - ANS-Splenic duct
All of the subsequent would resource in reducing scan time EXCEPT:
A. Increasing parallel imaging issue
B. Reduction in ETL
C. Reduction in NEX
D. Utilizing the coarsest matrix viable
E. Enabling half of-fourier choice
F. Reducing TR - ANS-Reduction in ETL
All of the subsequent yield a higher signal-to-noise ratio EXCEPT:
A. Increase in TR
B. Larger FOV
C. Higher NEX
D. Decrease in ETL
E. Increase in TE
F. Reduction in segment matrix - ANS-Increase in TE
An destructive response or hardship as a result of remedy from a healthcare expert is known as:
A. Anaphylactic
B. Nosocomial
