AMRIT Exam with all Correct & 100% Verified Answers
|Latest Version |Already Graded A+
Of the following enhancement agents which is still investigational ✔Correct Answer-All
MRI magnets that can range in weight from 26000-200,000lbs are: ✔Correct Answer-Permanent
Using a conventional spin-echo multi-slice pulse sequence, increasing the TE from 20 msec. to 40
msec will __ the number of slices allowed: ✔Correct Answer-Reduce
In the enviorment of an MR main magnetic field most implants that cause a deflection are
considered safe for imaging: ✔Correct Answer-False
T1 is the characteristic time constant for __________ ✔Correct Answer-63% regrowth of
longiudinal magnetization
Coils that can, during the MRI process, act as a transmitter, receiver or both are: ✔Correct Answer-
Radio Frequency coils (transceivers)
The MR signal is strongest when the precessing nuclei are: ✔Correct Answer-In phase coherence
Increasing which parameter is considered the "best" technique for improving image quality?
✔Correct Answer-NEX
When the net magnetixation in the XY plane has ceased to exist the condition of ____ has been
reached. ✔Correct Answer-Equilibrium
If a phase resolution of 256 is desired, then the TR must be repeated how many times? ✔Correct
Answer-256
Spins aligned in the anti-parallel directions are in ____ ✔Correct Answer-a high energy state
When describing overall image quality which best describes the difference in signal intensity
between two adjacent structures (A & B) divided by noise (N) ✔Correct Answer-Contrast to noise
ratio
The primary factor of an inversion recovery pulse sequence is which of the following parameters?
✔Correct Answer-TI
Of the following tissues which has the shortest T1 value: ✔Correct Answer-White matter = Bright
Cooling the electromagnetic coil windings to the point of superconductivity and then inducing an
electric current from an external power supply until the magnet is at full power is called: ✔Correct
Answer-Ramping Up
A _____ is defined as two magnetic poles of equal strength or magnitude, opposite in direction and
separated by an infinitesmial distance. ✔Correct Answer-Dipole
|Latest Version |Already Graded A+
Of the following enhancement agents which is still investigational ✔Correct Answer-All
MRI magnets that can range in weight from 26000-200,000lbs are: ✔Correct Answer-Permanent
Using a conventional spin-echo multi-slice pulse sequence, increasing the TE from 20 msec. to 40
msec will __ the number of slices allowed: ✔Correct Answer-Reduce
In the enviorment of an MR main magnetic field most implants that cause a deflection are
considered safe for imaging: ✔Correct Answer-False
T1 is the characteristic time constant for __________ ✔Correct Answer-63% regrowth of
longiudinal magnetization
Coils that can, during the MRI process, act as a transmitter, receiver or both are: ✔Correct Answer-
Radio Frequency coils (transceivers)
The MR signal is strongest when the precessing nuclei are: ✔Correct Answer-In phase coherence
Increasing which parameter is considered the "best" technique for improving image quality?
✔Correct Answer-NEX
When the net magnetixation in the XY plane has ceased to exist the condition of ____ has been
reached. ✔Correct Answer-Equilibrium
If a phase resolution of 256 is desired, then the TR must be repeated how many times? ✔Correct
Answer-256
Spins aligned in the anti-parallel directions are in ____ ✔Correct Answer-a high energy state
When describing overall image quality which best describes the difference in signal intensity
between two adjacent structures (A & B) divided by noise (N) ✔Correct Answer-Contrast to noise
ratio
The primary factor of an inversion recovery pulse sequence is which of the following parameters?
✔Correct Answer-TI
Of the following tissues which has the shortest T1 value: ✔Correct Answer-White matter = Bright
Cooling the electromagnetic coil windings to the point of superconductivity and then inducing an
electric current from an external power supply until the magnet is at full power is called: ✔Correct
Answer-Ramping Up
A _____ is defined as two magnetic poles of equal strength or magnitude, opposite in direction and
separated by an infinitesmial distance. ✔Correct Answer-Dipole
