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Practice Set (3) - Image Weighting and Contrast

Beschreibung

Diploma Magnetic Resonance Quiz am Practice Set (3) - Image Weighting and Contrast, erstellt von Thea Ampofo am 24/01/2016.
Thea Ampofo
Quiz von Thea Ampofo, aktualisiert more than 1 year ago
Thea Ampofo
Erstellt von Thea Ampofo vor fast 9 Jahre
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Zusammenfassung der Ressource

Frage 1

Frage
MRI images that are based on the differences in longitudinal relaxation characteristics of tissues are known as
Antworten
  • Tl weighted images
  • T2 weighted images
  • Proton density weighted images
  • Transitional images

Frage 2

Frage
MRI images that are based on the differences in the amount of hydrogen nuclei in tissues are known as
Antworten
  • TI weighted images
  • T2 weighted images
  • Proton density weighted images
  • Transitional images

Frage 3

Frage
MRl images that are based on the differences in the transverse relaxation characteristics of tissues are known as
Antworten
  • TI weighted images
  • T2 weighted images
  • Proton density weighted images
  • Spin density weighted images

Frage 4

Frage
The image parameter that primarily affects TI weighting is
Antworten
  • Echo time
  • Inversion time
  • Repetition time
  • None of the above

Frage 5

Frage
The image parameter that primarily affects T2 weighting is
Antworten
  • Echo time
  • Inversion time
  • Repetition time
  • None of the above

Frage 6

Frage
In a TI weighted image, a short TR is used to
Antworten
  • Maximize T2 effects
  • Minimize T2 effects
  • Maximize T1 effects
  • Minimize T1 effects

Frage 7

Frage
In a T2 weighted image, a long TR is used to
Antworten
  • Maximize T2 effects
  • Minimize T2 effects
  • Maximize T1 effects
  • Minimize T1 effects

Frage 8

Frage
In a T2 weighted image, a long TE is used to
Antworten
  • Maximize T2 effects
  • Minimize T2 effects
  • Maximize T1 effects
  • Minimize T1 effects

Frage 9

Frage
In a T1 weighted image, a short TE is used
Antworten
  • Maximize T2 effects
  • Minimize T2 effects
  • Maximize T1 effects
  • Minimize T1 effects

Frage 10

Frage
In a T1 weighted image, tissues with short T1 relaxation times produce what type of signal
Antworten
  • High
  • Low
  • Intermediate
  • None of the above

Frage 11

Frage
In a Tl weighted image, tissues with long Tl relaxation times produce what type of signal?
Antworten
  • High
  • Low
  • Intermediate
  • None of the above

Frage 12

Frage
In a T2 weighted image, tissues with short T2 relaxation times appear
Antworten
  • Hyperintense
  • Hypointense
  • Isointense
  • None of the above

Frage 13

Frage
In a T2 weighted image, tissues with long T2 relaxation times appear
Antworten
  • Hyperintense
  • Hypointense
  • Isointense
  • None of the above

Frage 14

Frage
In a proton density weighted image, tissues with a high number of hydrogen nuclei appear
Antworten
  • Hyperintense
  • Hypointense
  • Isointense
  • None of the above

Frage 15

Frage
In a proton density weighted image, tissues with a low number of hydrogen nuclei appear
Antworten
  • Hyperintense
  • Hypointense
  • Isointense
  • None of the above

Frage 16

Frage
In biological tissue, which type of relaxation occurs the quickest?
Antworten
  • T2 relaxation
  • T2* relaxation
  • Tl relaxation
  • None of the above

Frage 17

Frage
Longitudinal relaxation occurs more efficiently in which type of tissue?
Antworten
  • Water
  • Fat
  • Muscle
  • Cortical bone

Frage 18

Frage
In a Tl weighted image, fat has a _____ Tl relaxation time and therefore appears _____
Antworten
  • Long, Bright
  • Long, Dark
  • Short, Dark
  • Short, Bright

Frage 19

Frage
In a Tl weighted image, CSF has a ____ Tl relaxation time and therefore appears _____
Antworten
  • Long, Bright
  • Long, Dark
  • Short, Dark
  • Short, Bright

Frage 20

Frage
In a T2 weighted image, fat has a ____ T2 relaxation time and therefore appears _____
Antworten
  • Long, Bright
  • Long, Dark
  • Short, Dark
  • Short, Bright

Frage 21

Frage
In a T2 weighted image, CSF has a ____ T2 relaxation time and therefore appears ____
Antworten
  • Long, Bright
  • Long, Dark
  • Short, Dark
  • Short, Bright

Frage 22

Frage
A spin echo image with a long TR and a short TE is known as what type of image?
Antworten
  • T1 weighted image
  • Proton density weighted image
  • Spin density weighted image
  • Proton density weighted image & Spin density weighted image

Frage 23

Frage
A spin echo image with a long TR and a long TE is known as what type of unage?
Antworten
  • T1 weighted image
  • Proton density weighted image
  • T2 weighted image
  • Spin density weighted image

Frage 24

Frage
A spin echo image with a short TR and a short TE is known as what type of iInage?
Antworten
  • Tl weighted image
  • T2 weighted image
  • Proton density weighted image
  • None of the above

Frage 25

Frage
Another name for a proton density weighted image is
Antworten
  • Spin density
  • Intermediate
  • Inversion recovery
  • Spin density & Intermediate

Frage 26

Frage
On a TI weighted image of the brain, fat appears ____ to white matter.
Antworten
  • Hyperintense
  • Hypointense
  • Isointense

Frage 27

Frage
On a TI weighted image of the brain, white matter appears ____ to grey matter
Antworten
  • Hyperintense
  • Hypointense
  • Isointense

Frage 28

Frage
On a TI weighted image of the brain, grey matter appears to CSF
Antworten
  • Hyperintense
  • Hypointense
  • Isointense

Frage 29

Frage
On a TI weighted image of the brain, CSF appears _____ to fat
Antworten
  • Hyperintense
  • Hypointense
  • lsointense

Frage 30

Frage
On a proton density weighted image of the brain, white matter appears ____ to grey matter
Antworten
  • Hyperintense
  • Hypointense
  • Isointense

Frage 31

Frage
On a proton density weighted image of the brain, CSF appears ____ to grey matter
Antworten
  • Hyperintense
  • Hypointense
  • Isointense

Frage 32

Frage
On a T2 weighted image of the brain, CSF appears ____ to grey matter
Antworten
  • Hyperintense
  • Hypointense
  • Isointense

Frage 33

Frage
On a T2 weighted image of the brain, grey matter appears ____ to white matter
Antworten
  • Hyperintense
  • Hypointense
  • Isointense

Frage 34

Frage
On a TI weighted image of the knee, cortical bone appears ____ to all other tissues
Antworten
  • Hyperintense
  • Hypointense
  • Isointense

Frage 35

Frage
On a TI weighted image of the knee, bone marrow appears ____ to meniscal tissues.
Antworten
  • Hyperintense
  • Hypointense
  • Isointense

Frage 36

Frage
On a Tl weighted image of the spine, the intervertebral disk appears ____ to spinal cord.
Antworten
  • Hyperintense
  • Hypointense
  • Isointense

Frage 37

Frage
On a T2 weighted image of the spine, the intervertebral disk appears ____ to the spinal cord
Antworten
  • Hyperintense
  • Hypointense
  • lsointense

Frage 38

Frage
At a field strength of 1.0 tesla, the approximate Tl relaxation time of fat is
Antworten
  • 180 ms
  • 270 ms
  • 360 ms
  • 390 ms

Frage 39

Frage
At a field strength of 1.0 tesla, the approximate T2 relaxation time of fat is
Antworten
  • 40 ms
  • 50 ms
  • 80 ms
  • 90 ms

Frage 40

Frage
At a field strength of 1.0 tesla, the approximate T1 relaxation time of liver tissue is
Antworten
  • 180 ms
  • 270 ms
  • 360 ms
  • 390 ms

Frage 41

Frage
At a field strength of 1.0 tesla, the approximate T2 relaxation time of liver tissue is
Antworten
  • 40 ms
  • 50 ms
  • 60 ms
  • 70 ms

Frage 42

Frage
At a field strength of 1.0 tesla, the approximate T1 relaxation time for spleen tissue is
Antworten
  • 360 ms
  • 380 ms
  • 400 ms
  • 480 ms

Frage 43

Frage
At a field strength of 1.0 tesla, the approximate T2 relaxation time for spleen tissue is
Antworten
  • 60 ms
  • 80 ms
  • 90 ms
  • 100 ms

Frage 44

Frage
At a field strength of 1.0 tesla, the approximate T1 relaxation time for grey matter is
Antworten
  • 390 ms
  • 450 ms
  • 520 ms
  • 620 ms

Frage 45

Frage
At a field strength of l.0 tesla, the approximate T2 relaxation time for grey matter is
Antworten
  • 70 ms
  • 80 ms
  • 90 ms
  • 100 ms

Frage 46

Frage
At a field strength of 1.0 tesla, the approximate T1 relaxation time for white matter is
Antworten
  • 180 ms
  • 270 ms
  • 360 ms
  • 390 ms

Frage 47

Frage
At a field strength of 1.0 tesla, the approximate T2 relaxation time for white matter is
Antworten
  • 80 ms
  • 90 ms
  • 100 ms
  • 140 ms

Frage 48

Frage
At a field strength of 1.0 tesla, the approximate T1 relaxation time for renal cortex tissue is
Antworten
  • 180 ms
  • 270 ms
  • 360 ms
  • 390 ms

Frage 49

Frage
At a field strength of 1.0 tesla, the approximate T2 relaxation time for renal cortex tissue is
Antworten
  • 45 ms
  • 50 ms
  • 60 ms
  • 70 ms

Frage 50

Frage
At a field strength of 1.0 tesla, the approximate T1 relaxation time for muscle tissue is
Antworten
  • 270 ms
  • 480 ms
  • 600 ms
  • 680 ms

Frage 51

Frage
At a field strength of 1.0 tesla, the approximate T2 relaxation time for muscle tissue is
Antworten
  • 40 ms
  • 70 ms
  • 80 ms
  • 100 ms

Frage 52

Frage
At a field strength of 1.0 tesla, the approximate Tl relaxation time for renal medulla tissue is
Antworten
  • 520 ms
  • 600 ms
  • 680 ms
  • 800 ms

Frage 53

Frage
At a field strength of 1.0 tesla, the approximate T2 relaxation time for renal medulla tissue is
Antworten
  • 90 ms
  • 100 ms
  • 140 ms
  • 300 ms

Frage 54

Frage
At a field strength of 1.0 tesla, the approximate Tl relaxation time for blood is
Antworten
  • 540 ms
  • 680 ms
  • 800 ms
  • 1000 ms

Frage 55

Frage
At a field strength of 1.0 tesla, the approximate T2 relaxation time for blood is
Antworten
  • 140 ms
  • 180 ms
  • 240 ms
  • 300 ms

Frage 56

Frage
At a field strength of 1.0 tesla, the approximate Tl relaxation time for CSF is
Antworten
  • 800 ms
  • 1000 ms
  • 2000 ms
  • 2500 ms

Frage 57

Frage
At a field strength of 1.0 tesla, the approximate T2 relaxation time for CSF is
Antworten
  • 70 ms
  • 100 ms
  • 180 ms
  • 300 ms

Frage 58

Frage
At a field strength of 1.0 tesla, the approximate T1 relaxation time for water is
Antworten
  • 800 ms
  • 1000 ms
  • 2000 ms
  • 2500 ms

Frage 59

Frage
At a field strength of 1.0 tes1a, the approximate T2 relaxation time for water is
Antworten
  • 800 ms
  • 1000 ms
  • 2000 ms
  • 2500ms

Frage 60

Frage
Figure 3-1 displays which type of relaxation curve?
Image:
e003dbbd-cb74-4853-8551-24f852d87aa5 (image/jpeg)
Antworten
  • T1 Relaxation curve
  • T2 relaxation curve
  • Inversion recovery curve

Frage 61

Frage
Figure 3-2 displays which type of relaxation curve?
Image:
d3160a05-d248-4ed3-adfc-30b0adaead00 (image/jpeg)
Antworten
  • TI relaxation curve
  • T2 relaxation curve
  • Inversion recovery curve

Frage 62

Frage
Figure 3-3 displays which type of relaxation curve?
Image:
3950097e-a467-472b-a3c9-94efaadabec5 (image/jpeg)
Antworten
  • T1 relaxation curve
  • T2 relaxation curve
  • Inversion recovery curve

Frage 63

Frage
In Figure 3-4, at a TR of 200, which of the following tissues has the greatest signal intensity?
Image:
302d45b1-8f91-4832-92a3-9c0e1f67d556 (image/jpeg)
Antworten
  • Tissue A
  • Tissue B
  • Tissue C

Frage 64

Frage
In figure 3-5, at a TE of 90, which of the following tissues has the greatest signal intensity?
Image:
7eabf63f-f9d5-4802-8253-38bdd594e5d4 (image/jpeg)
Antworten
  • Tissue A
  • Tissue B
  • Tissue C

Frage 65

Frage
Figure 3-6 displays which type of relaxation curve?
Image:
740d2fac-545d-4e0d-bfce-58b09517ec3a (image/jpeg)
Antworten
  • T1 relaxation curve
  • Inversion recovery curve
  • T2 relaxation curve
  • T2* relaxation curve
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