Which of the following implants or devices are considered MRI unsafe
A. heart valves
B. tissue expanders
C. titanium orthopedic hardware for joint replacement
D. all of the above
Give this one a try later!
B. tissue expanders
When positioning a patient, it is important to not loop coil cables thus reducing the
chances of ___
A. decoupling
B. recoupling
C. frequent looping
D. none of the above
,Give this one a try later!
A. decoupling
The transverse direction can be defined as
A. net magnetization vector of protons perpendicular to B0 or B(null)
B. Brooklyn net magnetization
C. irregular magnetization
D. max magnetization
Give this one a try later!
A. net magnetization vector of protons perpendicular to B0 or B(null)
If a fast spin echo sequence has parameters set as: 512x224, 3 NEX with a FOV of 24.
How many times will the PHASE encoding steps have to be filled in order to correctly
produce a quaility FSE
A. 384 times
B. 512 times
C. 224 times
D. 240 times
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C. 224 times
What is the measurement conversion of 5,000 gauss
A. 0.5T
B. 5T
,C. 1.5T
D. .025T
Give this one a try later!
A. 0.5T
Proton A makes one precession around B0 every .030 microseconds. Proton B makes
on precession every .015 microseconds. therefore, the rate of precessional frequency
of proton a ___ the frequency of proton b
A. one quarter
B. one half
C. twice
D. quadruple
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C. twice
A RF pulse can only flip the net magnetization of hydrogen from the longitudinal to
the transverse direction if the __ and ___ share the same exact energy value
A. frequency, phase
B. matrix, NEX
C. chemical shift, gibbs artifact
D. RF pulse application, precessional frequency
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D. RF pulse application, precessional frequency
, What is the weakest magnetic field that can be measured in a 3T magnet, 6 meters
from the center of the magnetic when a 6mT/M gradient pulse is applied
A. 3.012
B. 3.36
C. 3.036
D. 2.964
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D. 2.964
A nasal cannula delivers oxygen at
A. 60-80%
B. 15-25 L/minute for adults
C. 100%
D. 1-6L/minute for adults
Give this one a try later!
D. 1-6L/minute for adults
Who is credited with inventing a physical scanner that allowed tissue differentiation
between benign and cancerous tissues
A. mansfield
B. lauterbur
C. hahn
D. damadian
Give this one a try later!
A. heart valves
B. tissue expanders
C. titanium orthopedic hardware for joint replacement
D. all of the above
Give this one a try later!
B. tissue expanders
When positioning a patient, it is important to not loop coil cables thus reducing the
chances of ___
A. decoupling
B. recoupling
C. frequent looping
D. none of the above
,Give this one a try later!
A. decoupling
The transverse direction can be defined as
A. net magnetization vector of protons perpendicular to B0 or B(null)
B. Brooklyn net magnetization
C. irregular magnetization
D. max magnetization
Give this one a try later!
A. net magnetization vector of protons perpendicular to B0 or B(null)
If a fast spin echo sequence has parameters set as: 512x224, 3 NEX with a FOV of 24.
How many times will the PHASE encoding steps have to be filled in order to correctly
produce a quaility FSE
A. 384 times
B. 512 times
C. 224 times
D. 240 times
Give this one a try later!
C. 224 times
What is the measurement conversion of 5,000 gauss
A. 0.5T
B. 5T
,C. 1.5T
D. .025T
Give this one a try later!
A. 0.5T
Proton A makes one precession around B0 every .030 microseconds. Proton B makes
on precession every .015 microseconds. therefore, the rate of precessional frequency
of proton a ___ the frequency of proton b
A. one quarter
B. one half
C. twice
D. quadruple
Give this one a try later!
C. twice
A RF pulse can only flip the net magnetization of hydrogen from the longitudinal to
the transverse direction if the __ and ___ share the same exact energy value
A. frequency, phase
B. matrix, NEX
C. chemical shift, gibbs artifact
D. RF pulse application, precessional frequency
Give this one a try later!
D. RF pulse application, precessional frequency
, What is the weakest magnetic field that can be measured in a 3T magnet, 6 meters
from the center of the magnetic when a 6mT/M gradient pulse is applied
A. 3.012
B. 3.36
C. 3.036
D. 2.964
Give this one a try later!
D. 2.964
A nasal cannula delivers oxygen at
A. 60-80%
B. 15-25 L/minute for adults
C. 100%
D. 1-6L/minute for adults
Give this one a try later!
D. 1-6L/minute for adults
Who is credited with inventing a physical scanner that allowed tissue differentiation
between benign and cancerous tissues
A. mansfield
B. lauterbur
C. hahn
D. damadian
Give this one a try later!
