Page: 11 (Special Imaging) - 11% Flashcards

1
Q

Which of the following presents structures in different planes with equal clarity?

a. ) Scintigraphy
b. ) X-ray
c. ) MRI
d. ) CT
e. ) DEXA

A

d.) CT

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2
Q

Which of the following measures bone densities fro Osteoporosis?

a. ) Scintigraphy
b. ) X-ray
c. ) MRI
d. ) CT
e. ) DEXA

A

e.) DEXA (Dual Emission X-ray Absorptometry)

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3
Q

Which of the following provides optimal visualization of spatial relationships and distinct soft tissue contrast to view: IVD, spinal cord, meninges, bone, meniscus or ligaments?

a. ) Scintigraphy
b. ) X-ray
c. ) MRI
d. ) CT
e. ) DEXA

A

c.) MRI

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4
Q

Which of the following uses and injection of radioactive substance to measure the body “attempt” to lay down new bone?

a. ) Scintigraphy
b. ) X-ray
c. ) MRI
d. ) CT
e. ) DEXA

A

a.) Scintigraphy (aka: Bone Scan)

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5
Q

Which of the following uses contrast and is 10x better than plane film?

a. ) Scintigraphy
b. ) X-ray
c. ) MRI
d. ) CT
e. ) DEXA

A

d.) CT

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6
Q

Which of the following has no radiation dose and utilizes signal intensities using surface coils?

a. ) Scintigraphy
b. ) X-ray
c. ) MRI
d. ) CT
e. ) DEXA

A

c.) MRI

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7
Q

Which of the following is best for lung pathology?

a. ) Scintigraphy
b. ) X-ray
c. ) MRI
d. ) CT
e. ) DEXA

A

d.) CT

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8
Q

Which of the following is best for AVN’s?

a. ) Scintigraphy
b. ) X-ray
c. ) MRI
d. ) CT
e. ) DEXA

A

c.) MRI

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9
Q

Which of the following is best for Multiple Sclerosis?

a. ) Scintigraphy
b. ) X-ray
c. ) MRI
d. ) CT
e. ) DEXA

A

c.) MRI

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10
Q

CT is measured in _____ units?

A

Hounsfield units

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11
Q

T1 MRI weighted is for _____?

T2 MRI weighted is for _____?

A
T1 = fatty pathologies, i.e. Muscular Dystrophy
T2 = water density, i.e. CSF and Disc's
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12
Q

Scintigraphy (Bone Scan) uses an injection of radioactive substance called: _____?

A

Technetium 99

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13
Q

What chemical substance is used in magnetic resonance imaging (MRI)?

A

Gadolinium

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14
Q

What does it mean when a Scintigraphy (Bone Scan) is “HOT”?

A

means it’s Positive: AVN, Blastic/Lytic Mets, Paget’s, Hodgkin’s and fractures

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15
Q

What does it mean when a Scintigraphy (Bone Scan) is “COLD”?

A

means it’s Negative (nothing is happening): Multiple Myeloma

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