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Practice Set (3) - Image Weighting and Contrast

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Diploma Magnetic Resonance Quiz sobre Practice Set (3) - Image Weighting and Contrast, criado por Thea Ampofo em 24-01-2016.
Thea Ampofo
Quiz por Thea Ampofo, atualizado more than 1 year ago
Thea Ampofo
Criado por Thea Ampofo mais de 8 anos atrás
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Resumo de Recurso

Questão 1

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

Questão 2

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

Questão 3

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

Questão 4

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

Questão 5

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

Questão 6

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

Questão 7

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

Questão 8

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

Questão 9

Questão
In a T1 weighted image, a short TE is used
Responda
  • Maximize T2 effects
  • Minimize T2 effects
  • Maximize T1 effects
  • Minimize T1 effects

Questão 10

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

Questão 11

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

Questão 12

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

Questão 13

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

Questão 14

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

Questão 15

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

Questão 16

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

Questão 17

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

Questão 18

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

Questão 19

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

Questão 20

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

Questão 21

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

Questão 22

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

Questão 23

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

Questão 24

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

Questão 25

Questão
Another name for a proton density weighted image is
Responda
  • Spin density
  • Intermediate
  • Inversion recovery
  • Spin density & Intermediate

Questão 26

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

Questão 27

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

Questão 28

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

Questão 29

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

Questão 30

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

Questão 31

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

Questão 32

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

Questão 33

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

Questão 34

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

Questão 35

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

Questão 36

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

Questão 37

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

Questão 38

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

Questão 39

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

Questão 40

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

Questão 41

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

Questão 42

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

Questão 43

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

Questão 44

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

Questão 45

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

Questão 46

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

Questão 47

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

Questão 48

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

Questão 49

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

Questão 50

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

Questão 51

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

Questão 52

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

Questão 53

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

Questão 54

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

Questão 55

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

Questão 56

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

Questão 57

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

Questão 58

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

Questão 59

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

Questão 60

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

Questão 61

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

Questão 62

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

Questão 63

Questão
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)
Responda
  • Tissue A
  • Tissue B
  • Tissue C

Questão 64

Questão
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)
Responda
  • Tissue A
  • Tissue B
  • Tissue C

Questão 65

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

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