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Practice Set (3) - Image Weighting and Contrast

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Diploma Magnetic Resonance Test sobre Practice Set (3) - Image Weighting and Contrast, creado por Thea Ampofo el 24/01/2016.
Thea Ampofo
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Resumen del Recurso

Pregunta 1

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

Pregunta 2

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

Pregunta 3

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

Pregunta 4

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

Pregunta 5

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

Pregunta 6

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

Pregunta 7

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

Pregunta 8

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

Pregunta 9

Pregunta
In a T1 weighted image, a short TE is used
Respuesta
  • Maximize T2 effects
  • Minimize T2 effects
  • Maximize T1 effects
  • Minimize T1 effects

Pregunta 10

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

Pregunta 11

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

Pregunta 12

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

Pregunta 13

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

Pregunta 14

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

Pregunta 15

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

Pregunta 16

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

Pregunta 17

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

Pregunta 18

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

Pregunta 19

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

Pregunta 20

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

Pregunta 21

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

Pregunta 22

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

Pregunta 23

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

Pregunta 24

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

Pregunta 25

Pregunta
Another name for a proton density weighted image is
Respuesta
  • Spin density
  • Intermediate
  • Inversion recovery
  • Spin density & Intermediate

Pregunta 26

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

Pregunta 27

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

Pregunta 28

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

Pregunta 29

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

Pregunta 30

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

Pregunta 31

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

Pregunta 32

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

Pregunta 33

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

Pregunta 34

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

Pregunta 35

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

Pregunta 36

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

Pregunta 37

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

Pregunta 38

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

Pregunta 39

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

Pregunta 40

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

Pregunta 41

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

Pregunta 42

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

Pregunta 43

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

Pregunta 44

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

Pregunta 45

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

Pregunta 46

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

Pregunta 47

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

Pregunta 48

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

Pregunta 49

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

Pregunta 50

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

Pregunta 51

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

Pregunta 52

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

Pregunta 53

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

Pregunta 54

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

Pregunta 55

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

Pregunta 56

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

Pregunta 57

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

Pregunta 58

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

Pregunta 59

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

Pregunta 60

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

Pregunta 61

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

Pregunta 62

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

Pregunta 63

Pregunta
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)
Respuesta
  • Tissue A
  • Tissue B
  • Tissue C

Pregunta 64

Pregunta
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)
Respuesta
  • Tissue A
  • Tissue B
  • Tissue C

Pregunta 65

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