MRI Quiz Section 3 Final Exam Question
and Answers Verified Solutions| Graded A+
Terms in this set (79) EXAM QUIZZES VERIFIED ANSWERS
1. Which of the following has been documented Time varying magnetic fields
to cause muscle contractions, cardiac (gradient)
arrhythmias, mild cutaneous sensations and
visual light flashes?
2. Which of the following's primary biological Oscillating magnetic fields
effect is tissue heating/deposition? (radiofrequency)
3. The orientation of the main magnetic field in a Horizontal
high field, superconducting, short bore magnet
is
4. The ____________ is responsible for the Rapid change/switching of the
knocking noise the system makes while the magnetic field by the gradient
sequence is in progress. coils
5. If a sagittal slice plane has been selected, the X gradient
__________ is enabled to alter the magnetic
, field around the patient's body.
6. If a coronal slice plane has been selected, the Y gradient
__________ is enabled to alter the magnetic
field around the patient's body.Your answer is
Correct
7. If a transverse/axial slice plane has been Z gradient
selected, the __________ is enabled to alter the
magnetic field around the patient's body.
8. The primary biological effect of Tissue heating
radiofrequency fields is:Your answer is
9. The measurement of radiofrequency absorption Watts per kilogram
is delineated as:Your answer is
10. The effects of time varying magnetic fields can Warmth and/or increase in body
include all of the following EXCEPT: temperature
11. Current FDA limits on time varying magnetic Once the patient experiences
fields are: peripheral nerve stimulation
12. Which of the following sequences would be EPI
more at risk for the effects that time varying
magnetic fields can cause?
13. The gradient rise time is defined as the: Time it takes for the gradient to
reach its full amplitude
14. The gradient slew rate is the: Rate of speed of ascent or
descent of a gradient from zero
and Answers Verified Solutions| Graded A+
Terms in this set (79) EXAM QUIZZES VERIFIED ANSWERS
1. Which of the following has been documented Time varying magnetic fields
to cause muscle contractions, cardiac (gradient)
arrhythmias, mild cutaneous sensations and
visual light flashes?
2. Which of the following's primary biological Oscillating magnetic fields
effect is tissue heating/deposition? (radiofrequency)
3. The orientation of the main magnetic field in a Horizontal
high field, superconducting, short bore magnet
is
4. The ____________ is responsible for the Rapid change/switching of the
knocking noise the system makes while the magnetic field by the gradient
sequence is in progress. coils
5. If a sagittal slice plane has been selected, the X gradient
__________ is enabled to alter the magnetic
, field around the patient's body.
6. If a coronal slice plane has been selected, the Y gradient
__________ is enabled to alter the magnetic
field around the patient's body.Your answer is
Correct
7. If a transverse/axial slice plane has been Z gradient
selected, the __________ is enabled to alter the
magnetic field around the patient's body.
8. The primary biological effect of Tissue heating
radiofrequency fields is:Your answer is
9. The measurement of radiofrequency absorption Watts per kilogram
is delineated as:Your answer is
10. The effects of time varying magnetic fields can Warmth and/or increase in body
include all of the following EXCEPT: temperature
11. Current FDA limits on time varying magnetic Once the patient experiences
fields are: peripheral nerve stimulation
12. Which of the following sequences would be EPI
more at risk for the effects that time varying
magnetic fields can cause?
13. The gradient rise time is defined as the: Time it takes for the gradient to
reach its full amplitude
14. The gradient slew rate is the: Rate of speed of ascent or
descent of a gradient from zero
