MRI Multiple Choice Questions
How useful was this content?
Click on a star to rate it!
Average rating 4.2 / 5. Vote count: 57
No votes so far! Be the first to rate this content.
Thank you for your rating
Tell us how we can improve this content?
Quiz Summary
0 of 55 Questions completed
Questions:
Information
You have already completed the quiz before. Hence you can not start it again.
Quiz is loading…
You must sign in or sign up to start the quiz.
You must first complete the following:
Results
Results
0 of 55 Questions answered correctly
Your time:
Time has elapsed
You have reached 0 of 0 point(s), (0)
Earned Point(s): 0 of 0, (0)
0 Essay(s) Pending (Possible Point(s): 0)
Categories
- Not categorized 0%
- 1
- 2
- 3
- 4
- 5
- 6
- 7
- 8
- 9
- 10
- 11
- 12
- 13
- 14
- 15
- 16
- 17
- 18
- 19
- 20
- 21
- 22
- 23
- 24
- 25
- 26
- 27
- 28
- 29
- 30
- 31
- 32
- 33
- 34
- 35
- 36
- 37
- 38
- 39
- 40
- 41
- 42
- 43
- 44
- 45
- 46
- 47
- 48
- 49
- 50
- 51
- 52
- 53
- 54
- 55
- Current
- Review
- Answered
- Correct
- Incorrect
-
Question 1 of 55
1. Question
Increasing an MRI system’s magnetic field strength
(a) decreases the net polarisation of magnetisation
CorrectIncorrect -
Question 2 of 55
2. Question
Increasing an MRI system’s magnetic field strength
(b) increases the frequency of magnetisation precession
CorrectIncorrect -
Question 3 of 55
3. Question
Increasing an MRI system’s magnetic field strength
(c) increases the magnetic field inhomogeneity
CorrectIncorrect -
Question 4 of 55
4. Question
Increasing an MRI system’s magnetic field strength
(d) decreases the energy deposited in the patient
CorrectIncorrect -
Question 5 of 55
5. Question
Increasing an MRI system’s magnetic field strength
(e) decreases the relaxation rate T2*
CorrectIncorrect -
Question 6 of 55
6. Question
Concerning diffusion-weighted imaging (DWI):
(a) Lower b-values impart a higher diffusion weighting to the image
CorrectIncorrect -
Question 7 of 55
7. Question
Concerning diffusion-weighted imaging (DWI):
(b) Echo Planar Imaging (EPI) readouts are typically used
CorrectIncorrect -
Question 8 of 55
8. Question
Concerning diffusion-weighted imaging (DWI):
(c) The apparent diffusion coefficient has units of mm2/s
CorrectIncorrect -
Question 9 of 55
9. Question
Concerning diffusion-weighted imaging (DWI):
(d) Increasing the strength of diffusion weighting gradients increases the b value
CorrectIncorrect -
Question 10 of 55
10. Question
Concerning diffusion-weighted imaging (DWI):
(e) The amount of diffusion attenuation measured is independent of applied gradient direction for all tissues
CorrectIncorrect -
Question 11 of 55
11. Question
Inversion pulses:
(a) rotate magnetisation by 90°
CorrectIncorrect -
Question 12 of 55
12. Question
Inversion pulses:
(b) cannot be used to impart T2 weighting to an image
CorrectIncorrect -
Question 13 of 55
13. Question
Inversion pulses:
(c) can be used to null fat signal when used in conjunction with a long inversion time
CorrectIncorrect -
Question 14 of 55
14. Question
Inversion pulses:
(d) can be used to impart T1 weighting to an image
CorrectIncorrect -
Question 15 of 55
15. Question
Inversion pulses:
(e) can be used to null CSF signal when used in conjunction with a long inversion time
CorrectIncorrect -
Question 16 of 55
16. Question
Concerning the Turbo Spin Echo
(a) Increased turbo factor leads to shorter scan duration
CorrectIncorrect -
Question 17 of 55
17. Question
Concerning the Turbo Spin Echo
(b) Increased turbo factor leads to blurring in tissue with short T1
CorrectIncorrect -
Question 18 of 55
18. Question
Concerning the Turbo Spin Echo
(c) TSE is only compatible with multi-slice 2D imaging
CorrectIncorrect -
Question 19 of 55
19. Question
Concerning the Turbo Spin Echo
(d) TSE can utilise refocussing pulses with flip angles below 180°
CorrectIncorrect -
Question 20 of 55
20. Question
Concerning the Turbo Spin Echo
(e) Single-shot TSE is robust to patient motion
CorrectIncorrect -
Question 21 of 55
21. Question
Parallel imaging
(a) is used to increase scan duration
CorrectIncorrect -
Question 22 of 55
22. Question
Parallel imaging
(b) requires receive coils with multiple receive channels
CorrectIncorrect -
Question 23 of 55
23. Question
Parallel imaging
(c) results in a loss in SNR
CorrectIncorrect -
Question 24 of 55
24. Question
Parallel imaging
(d) allows k-space to be undersampled in the frequency-encode direction
CorrectIncorrect -
Question 25 of 55
25. Question
Parallel imaging
(e) cannot be used to increase the temporal resolution of dynamic contrast-enhanced studies
CorrectIncorrect -
Question 26 of 55
26. Question
Considering gradient echo sequences:
(a) A spoiled gradient echo image with a long echo time (TE) will be T2*-weighted.
CorrectIncorrect -
Question 27 of 55
27. Question
Considering gradient echo sequences:
(b) A spoiled gradient echo image with a short echo time (TE) and low flip angle will be T1-weighted.
CorrectIncorrect -
Question 28 of 55
28. Question
Considering gradient echo sequences:
(c) The echo time (TE) of a spoiled gradient echo sequence can be used to control whether the signals from fat and water are in-phase or out-of-phase.
CorrectIncorrect -
Question 29 of 55
29. Question
Considering gradient echo sequences:
(d) Gradient echo sequences are too slow to use in breath-hold acquisitions in abdominal imaging.
CorrectIncorrect -
Question 30 of 55
30. Question
Considering gradient echo sequences:
(e) Gradient echo sequences are better than spin echo sequences for reducing the image artefact around metal implants
CorrectIncorrect -
Question 31 of 55
31. Question
Considering inversion recovery sequences:
(a) An inversion recovery sequence with a relatively short inversion time (TI ~ 150-240 ms) can be used to suppress the signal from fat.
CorrectIncorrect -
Question 32 of 55
32. Question
Considering inversion recovery sequences:
(b) The inversion time (TI) required to suppress the signal from fat depends on the strength of the main magnetic field (B0).
CorrectIncorrect -
Question 33 of 55
33. Question
Considering inversion recovery sequences:
(c) Inversion recovery sequences can be used to suppress the signal from fluid.
CorrectIncorrect -
Question 34 of 55
34. Question
Considering inversion recovery sequences:
(d) Inversion recovery sequences can be used to suppress the signal from any tissue by choosing the appropriate inversion time (TI).
CorrectIncorrect -
Question 35 of 55
35. Question
Considering inversion recovery sequences:
(e) Inversion recovery sequences are often used in contrast-enhanced MRI (i.e. after injection of a gadolinium-based contrast agent).
CorrectIncorrect -
Question 36 of 55
36. Question
Considering spin-echo (SE) sequences:
(a) A SE image with a long echo time (TE) and long repetition time (TR) will be proton-density-weighted (PDw).
CorrectIncorrect -
Question 37 of 55
37. Question
Considering spin-echo (SE) sequences:
(b) A SE image with short echo time (TE) and long repetition time (TR) will be T2-weighted.
CorrectIncorrect -
Question 38 of 55
38. Question
Considering spin-echo (SE) sequences:
(c) A SE image with short echo time (TE) and long repetition time (TR) will be T1-weighted.
CorrectIncorrect -
Question 39 of 55
39. Question
Considering spin-echo (SE) sequences:
(d) Materials with long T1 appear bright on T1-weighted images.
CorrectIncorrect -
Question 40 of 55
40. Question
Considering spin-echo (SE) sequences:
(e) Materials with long T2 appear bright on T2-weighted images.
CorrectIncorrect -
Question 41 of 55
41. Question
Considering a material that appears bright on a heavily diffusion-weighted image:
(a) You can infer that the material must have a low apparent diffusion coefficient (ADC) because it appears bright on a heavily diffusion-weighted image.
CorrectIncorrect -
Question 42 of 55
42. Question
Considering a material that appears bright on a heavily diffusion-weighted image:
(b) You can infer that the material must have a high apparent diffusion coefficient (ADC) because it appears bright on a heavily diffusion-weighted image.
CorrectIncorrect -
Question 43 of 55
43. Question
Considering a material that appears bright on a heavily diffusion-weighted image:
(c) The bright appearance on the heavily diffusion-weighted image could be due to a low apparent diffusion coefficient (ADC) or long T2 or both of these properties.
CorrectIncorrect -
Question 44 of 55
44. Question
Considering a material that appears bright on a heavily diffusion-weighted image:
(d) Inspection of all of the diffusion-weighted images and the apparent diffusion coefficient (ADC) maps is required to correctly interpret the data.
CorrectIncorrect -
Question 45 of 55
45. Question
Considering a material that appears bright on a heavily diffusion-weighted image:
(e) A b-value of 100 s/mm2 would generally provide a heavily diffusion-weighted image.
CorrectIncorrect -
Question 46 of 55
46. Question
With reference to MR safety:
(a) All medical implants can be scanned in MRI but only using a 1.5T scanner.
CorrectIncorrect -
Question 47 of 55
47. Question
With reference to MR safety:
(b) Implants containing metal can never be scanned using a 3T scanner.
CorrectIncorrect -
Question 48 of 55
48. Question
With reference to MR safety:
(c) Contact burns may occur if the patient’s skin is touching metal items, electrical cables, or other parts of their skin during scanning.
CorrectIncorrect -
Question 49 of 55
49. Question
With reference to MR safety:
(d) It may be necessary to modify imaging protocols in order to meet the conditions specified by the implant manufacturer for scanning a patient with an MR Conditional implant.
CorrectIncorrect -
Question 50 of 55
50. Question
With reference to MR safety:
(e) Identifying a medical device has been labelled as MR Conditional is sufficient to ensure MR safety on a 1.5T MRI scanner.
CorrectIncorrect -
Question 51 of 55
51. Question
Considering fat suppression:
(a) Fat suppression is always applied in all MR images.
CorrectIncorrect -
Question 52 of 55
52. Question
Considering fat suppression:
(b) Inversion recovery-based fat suppression (e.g. STIR) suppresses fat by exploiting the difference in T1 relaxation times between fat and other tissues.
CorrectIncorrect -
Question 53 of 55
53. Question
Considering fat suppression:
(c) Frequency-selective fat suppression methods (e.g. Chemical Shift Selective [CHESS], FatSat) suppress fat by exploiting the difference in resonant frequencies between protons in water molecules and protons in fat molecules.
CorrectIncorrect -
Question 54 of 55
54. Question
Considering fat suppression:
(d) Frequency-selective fat suppression methods (e.g. CHESS, FatSat) are more likely to fail near metal implants compared with inversion recovery-based fat suppression.
CorrectIncorrect -
Question 55 of 55
55. Question
Considering fat suppression:
(e) Dixon MRI sequences can be used to generate fat suppressed images
CorrectIncorrect