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IMEQMA ENDTERM > Fluoroscope > Flashcards

Fluoroscope Flashcards

1
Q

used for examination of moving internal structures and fluids

A

Fluoroscope

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2
Q

What type of exposure does fluoroscope use?

A

Dead-man type

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3
Q

Two types of x-ray tube in fluoroscopy?

A
  1. Fluoroscopic X-Ray Tube
  2. Radiographic X-Ray Tube
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4
Q

located under the bucky table, below the collimator

A

Fluoroscopic X-Ray Tube

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5
Q

attached to an overhead movable crane

A

Radiographic X-Ray Tube

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6
Q

Components of Fluoroscope (6)

A
  1. X-Ray Generator
  2. X-Ray Tube
  3. Image Intensifier
  4. Focusing Lenses
  5. Video Camera
  6. Charged coupled device (CCD)
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7
Q

component of fluoroscope used for the selection of mA and kVp

A

X-Ray Generator

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8
Q

converts electrical energy provided by the generator into x-ray beam

A

X-Ray Tube

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9
Q

converts x-ray beam into visible light image

A

Image Intensifier

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10
Q

Size of Image Intensifier

A

Approx. 20 cm long, PD = 25,000 V

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11
Q

Component of Fluoroscopy that is used to converge image

A

Focusing Lens

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12
Q

Component of Fluoroscope that records image

A

Video Camera

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13
Q

Component of Fluoroscope that captures real time image and display

A

Charged-Couples Device (CCD)

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14
Q

used to protect patient from falling off the bucky table

A

Bucky Slot Cover

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15
Q

Size of Bucky Slot Cover

A

5 cm, opening at the end of BSC

made up with atleast 0.25mm of lead

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16
Q

Elements of Image Intensifier Tube (6)

A
  1. Input Phosphor
  2. Photocathode
  3. Electrostatic Focusing Lens
  4. Accelerating Anode
  5. Output Phosphor
  6. Vidicon
17
Q

converts x-ray beam into light photons

A

Input Phosphor

18
Q

converts light photons into electrons

A

Photocathode

19
Q

maintains proper focus of the photoelectrons emitted from the photocathode to accelerating anode

A

Electrostatic Focusing Lenses

20
Q

located at the neck of the II tube, it is a circular metal piece with a hole at the center so electron can pass through the output phospho

A

Accelerating Anode

21
Q

Converts electrons to light image

A

Output Phosphor

22
Q

converts light image into real time display, connected to the output phosphor of the II tube

A

Vidicon

23
Q

the pattern from the large cathode end of the II TUBE must be reduced to small output phosphor

A

Minification

24
Q

process of electron emission that follows light stimulation

A

Photoemission

IMEQMA ENDTERM (1 decks)

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