STUDY GUIDE for ARMRIT exam |\ |\ |\ |\ |\
In a spin echo pulse sequence, which of the following
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
eliminates T2* effects by rephrasing the transverse
|\ |\ |\ |\ |\ |\ |\
magnetization and producing the echo? - CORRECT |\ |\ |\ |\ |\ |\ |\
ANSWERS ✔✔180-degree RF pulse |\ |\ |\
In a spin echo pulse sequence, a 180-degree RF
|\ |\ |\ |\ |\ |\ |\ |\ |\
refocusing pulse produces a signal echo and... - CORRECT
|\ |\ |\ |\ |\ |\ |\ |\
ANSWERS ✔✔Eliminates rephrasing due to magnetic field
|\ |\ |\ |\ |\ |\ |\
inhomogeneities
|\
In an inversion recovery pulse sequence, the initial
|\ |\ |\ |\ |\ |\ |\ |\
excitation pulse drives the longitudinal magnetization
|\ |\ |\ |\ |\ |\
from +Z direction to which of the following directions? -
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
CORRECT ANSWERS ✔✔-Z |\ |\
Which of the following parameters will influence T1
|\ |\ |\ |\ |\ |\ |\ |\
contrast in a GRE pulse sequence? - CORRECT ANSWERS
|\ |\ |\ |\ |\ |\ |\ |\ |\
✔✔Flip angle |\
In a fast(Turbo) spin echo pulse sequence, the initial slice
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
excitation pulse is followed by a series of which of the
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
following? - CORRECT ANSWERS ✔✔180 radio frequency
|\ |\ |\ |\ |\ |\ |\
induced echoes |\
, Which of the following is not an advantage of
|\ |\ |\ |\ |\ |\ |\ |\ |\
superconducting magnets? - CORRECT ANSWERS |\ |\ |\ |\ |\
✔✔Quick turn-off capability |\ |\
Superconducting magnet coils exhibit what type of |\ |\ |\ |\ |\ |\ |\
resistance when operating at or below critical |\ |\ |\ |\ |\ |\ |\
temperature? - CORRECT ANSWERS ✔✔Zero resistance |\ |\ |\ |\ |\
In a permanent magnet design, which of the following
|\ |\ |\ |\ |\ |\ |\ |\ |\
best describes the direction of the main magnetic field? -
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
CORRECT ANSWERS ✔✔Parallel to the long axis of a body
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
in the magnet.
|\ |\
What is the cryogen in a superconducting magnet? -
|\ |\ |\ |\ |\ |\ |\ |\ |\
CORRECT ANSWERS ✔✔Liquid helium |\ |\ |\
Conductive copper windings that alter a main magnetic |\ |\ |\ |\ |\ |\ |\ |\
field along a strict coordinate are known as which of the
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
following? - CORRECT ANSWERS ✔✔Gradient coils |\ |\ |\ |\ |\
In an axial image, slice encoding is achieved through
|\ |\ |\ |\ |\ |\ |\ |\ |\
which of the following? - CORRECT ANSWERS ✔✔Z
|\ |\ |\ |\ |\ |\ |\ |\
gradient
In a spin echo pulse sequence, which of the following
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
eliminates T2* effects by rephrasing the transverse
|\ |\ |\ |\ |\ |\ |\
magnetization and producing the echo? - CORRECT |\ |\ |\ |\ |\ |\ |\
ANSWERS ✔✔180-degree RF pulse |\ |\ |\
In a spin echo pulse sequence, a 180-degree RF
|\ |\ |\ |\ |\ |\ |\ |\ |\
refocusing pulse produces a signal echo and... - CORRECT
|\ |\ |\ |\ |\ |\ |\ |\
ANSWERS ✔✔Eliminates rephrasing due to magnetic field
|\ |\ |\ |\ |\ |\ |\
inhomogeneities
|\
In an inversion recovery pulse sequence, the initial
|\ |\ |\ |\ |\ |\ |\ |\
excitation pulse drives the longitudinal magnetization
|\ |\ |\ |\ |\ |\
from +Z direction to which of the following directions? -
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
CORRECT ANSWERS ✔✔-Z |\ |\
Which of the following parameters will influence T1
|\ |\ |\ |\ |\ |\ |\ |\
contrast in a GRE pulse sequence? - CORRECT ANSWERS
|\ |\ |\ |\ |\ |\ |\ |\ |\
✔✔Flip angle |\
In a fast(Turbo) spin echo pulse sequence, the initial slice
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
excitation pulse is followed by a series of which of the
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
following? - CORRECT ANSWERS ✔✔180 radio frequency
|\ |\ |\ |\ |\ |\ |\
induced echoes |\
, Which of the following is not an advantage of
|\ |\ |\ |\ |\ |\ |\ |\ |\
superconducting magnets? - CORRECT ANSWERS |\ |\ |\ |\ |\
✔✔Quick turn-off capability |\ |\
Superconducting magnet coils exhibit what type of |\ |\ |\ |\ |\ |\ |\
resistance when operating at or below critical |\ |\ |\ |\ |\ |\ |\
temperature? - CORRECT ANSWERS ✔✔Zero resistance |\ |\ |\ |\ |\
In a permanent magnet design, which of the following
|\ |\ |\ |\ |\ |\ |\ |\ |\
best describes the direction of the main magnetic field? -
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
CORRECT ANSWERS ✔✔Parallel to the long axis of a body
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
in the magnet.
|\ |\
What is the cryogen in a superconducting magnet? -
|\ |\ |\ |\ |\ |\ |\ |\ |\
CORRECT ANSWERS ✔✔Liquid helium |\ |\ |\
Conductive copper windings that alter a main magnetic |\ |\ |\ |\ |\ |\ |\ |\
field along a strict coordinate are known as which of the
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
following? - CORRECT ANSWERS ✔✔Gradient coils |\ |\ |\ |\ |\
In an axial image, slice encoding is achieved through
|\ |\ |\ |\ |\ |\ |\ |\ |\
which of the following? - CORRECT ANSWERS ✔✔Z
|\ |\ |\ |\ |\ |\ |\ |\
gradient
