Question 1

The x-ray beam used with a digital fluoroscopic unit uses ___________ mA and a ______________ beam.

Accepted Answer

A)  low; constant 
B)  high; constant 
C)  low; pulsed 
D)  high; pulsed 
A)  low; constant 
B)  high; constant 
C)  low; pulsed 
D)  high; pulsed D

Question 2

The TFTs control the current to each pixel and switch it on or off by causing the liquid crystals to twist or untwist in which type of monitor?

Accepted Answer

A)  CRT monitor 
B)  LCD monitor 
C)  Plasma monitor 
D)  Smartphone monitor 
A)  CRT monitor 
B)  LCD monitor 
C)  Plasma monitor 
D)  Smartphone monitor B

Question 3

The radiographer may be responsible for the ________________ inspection of the fluoroscopic equipment for QC purposes.

Accepted Answer

A)  performance 
B)  operational 
C)  A and B 
D)  none of the above 
A)  performance 
B)  operational 
C)  A and B 
D)  none of the above B

Question 4

The newest fluoroscopy systems use a flat-panel detector:

Accepted Answer

A)  to display the spot images during fluoroscopy. 
B)  to record the overhead images following fluoroscopy. 
C)  in place of the image intensifier. 
D)  in addition to the image intensifier. 
A)  to display the spot images during fluoroscopy. 
B)  to record the overhead images following fluoroscopy. 
C)  in place of the image intensifier. 
D)  in addition to the image intensifier.

Question 5

When using the mobile C-Arm unit,the x-ray tube should be positioned under the patient and the image intensifier above the patient because:

Accepted Answer

A)  more convenient to get the unit under the patient's bed during surgery. 
B)  increase radiation exposure to operator. 
C)  reduce radiation exposure to operator. 
D)  it is easier to move this way. 
A)  more convenient to get the unit under the patient's bed during surgery. 
B)  increase radiation exposure to operator. 
C)  reduce radiation exposure to operator. 
D)  it is easier to move this way.

Question 6

Typical CRT type television monitors have:

Accepted Answer

A)  300 lines. 
B)  450 lines. 
C)  525 lines. 
D)  875 lines. 
A)  300 lines. 
B)  450 lines. 
C)  525 lines. 
D)  875 lines.

Question 7

In terms of resolution,the weakest part of the fluoroscopic system is the:

Accepted Answer

A)  image intensifier. 
B)  television monitor. 
C)  camera tube. 
D)  none of the above. 
A)  image intensifier. 
B)  television monitor. 
C)  camera tube. 
D)  none of the above.

Question 8

Which of the following happens while in radiographic mode?

Accepted Answer

A)  X-ray tube switches to high mA 
B)  X-ray tube switches to low mA 
C)  Image intensification 
D)  None of the above 
A)  X-ray tube switches to high mA 
B)  X-ray tube switches to low mA 
C)  Image intensification 
D)  None of the above

Question 9

Which of the following has a rectangular field of view and a wider dynamic range?

Accepted Answer

A)  Conventional image intensifier 
B)  Flat-panel detector in place of image intensifier 
C)  There is no difference between the two. 
A)  Conventional image intensifier 
B)  Flat-panel detector in place of image intensifier 
C)  There is no difference between the two.

Question 10

The ABC can be slow in responding,seen as a brief delay in the brightness adjustment.

Accepted Answer

A) True 
 B)False

Question 11

The __________________ is coated with light-emitting crystals to absorb electrons and emit light.

Accepted Answer

A)  input phosphor 
B)  output phosphor 
C)  photocathode 
D)  accelerating anode 
A)  input phosphor 
B)  output phosphor 
C)  photocathode 
D)  accelerating anode

Question 12

Flat-panel detectors for digital fluoroscopic imaging can be the:

Accepted Answer

A)  amorphous silicon indirect capture type. 
B)  photostimulable phosphor plate type. 
C)  amorphous selenium direct capture type. 
D)  A and B. 
E)  A and C. 
A)  amorphous silicon indirect capture type. 
B)  photostimulable phosphor plate type. 
C)  amorphous selenium direct capture type. 
D)  A and B. 
E)  A and C.

Question 13

Semiconductor capacitors are components of the:

Accepted Answer

A)  camera tube. 
B)  CCD. 
C)  image intensifier. 
D)  x-ray tube. 
A)  camera tube. 
B)  CCD. 
C)  image intensifier. 
D)  x-ray tube.

Question 14

This recording system allows the film to be divided into two,four,or more images.

Accepted Answer

A)  Cassette spot imaging 
B)  Film cameras for spot filming 
C)  Videotape 
D)  None of the above 
A)  Cassette spot imaging 
B)  Film cameras for spot filming 
C)  Videotape 
D)  None of the above

Question 15

In image-intensified fluoroscopy,the mA used during imaging is considerably lower than in the radiographic mode.

Accepted Answer

A) True 
 B)False

Question 16

The fiber-optic bundle or optical lens system is used to:

Accepted Answer

A)  deliver the image from the camera to the television monitor. 
B)  record the fluoroscopic image. 
C)  link the output phosphor and camera or CCD. 
D)  none of the above. 
A)  deliver the image from the camera to the television monitor. 
B)  record the fluoroscopic image. 
C)  link the output phosphor and camera or CCD. 
D)  none of the above.

Question 17

Magnification of the fluoroscopic image results in improved:

Accepted Answer

A)  brightness. 
B)  spatial resolution. 
C)  contrast. 
D)  exposure. 
A)  brightness. 
B)  spatial resolution. 
C)  contrast. 
D)  exposure.

Question 18

The beam splitting mirror is never used with fiber optics.

Accepted Answer

A) True 
 B)False

Question 19

This is measured in cd/m²/mR/s.

Accepted Answer

A)  Brightness gain 
B)  Flux 
C)  Minification gain 
D)  Conversion factor 
A)  Brightness gain 
B)  Flux 
C)  Minification gain 
D)  Conversion factor

Question 20

___________ uses a continuous beam of x-rays to create images of the movement of internal structures that can be viewed on a monitor.

Accepted Answer

A)  Radiography 
B)  Fluoroscopy 
C)  Digital radiography 
D)  All of the above 
A)  Radiography 
B)  Fluoroscopy 
C)  Digital radiography 
D)  All of the above

The x-ray beam used with a digital fluoroscopic unit uses _ mA and a ____ beam.

The TFTs control the current to each pixel and switch it on or off by causing the liquid crystals to twist or untwist in which type of monitor?

The radiographer may be responsible for the ________________ inspection of the fluoroscopic equipment for QC purposes.

The newest fluoroscopy systems use a flat-panel detector:

When using the mobile C-Arm unit,the x-ray tube should be positioned under the patient and the image intensifier above the patient because:

Typical CRT type television monitors have:

In terms of resolution,the weakest part of the fluoroscopic system is the:

Which of the following happens while in radiographic mode?

Which of the following has a rectangular field of view and a wider dynamic range?

The ABC can be slow in responding,seen as a brief delay in the brightness adjustment.

The __________________ is coated with light-emitting crystals to absorb electrons and emit light.

Flat-panel detectors for digital fluoroscopic imaging can be the:

Semiconductor capacitors are components of the:

This recording system allows the film to be divided into two,four,or more images.

In image-intensified fluoroscopy,the mA used during imaging is considerably lower than in the radiographic mode.

The fiber-optic bundle or optical lens system is used to:

Magnification of the fluoroscopic image results in improved:

The beam splitting mirror is never used with fiber optics.

This is measured in cd/m²/mR/s.

___________ uses a continuous beam of x-rays to create images of the movement of internal structures that can be viewed on a monitor.

Radiation and Its Discovery

The X-Ray Beam

Image Formation and Radiographic Quality

Digital Imaging

Film-Screen Imaging

Exposure Technique Factors

Scatter Control

Exposure Technique Selection

Image Evaluation

Filters

Exam 10: Dynamic Imaging: Fluoroscopy

The x-ray beam used with a digital fluoroscopic unit uses ___________ mA and a ______________ beam.

The TFTs control the current to each pixel and switch it on or off by causing the liquid crystals to twist or untwist in which type of monitor?

The radiographer may be responsible for the ________________ inspection of the fluoroscopic equipment for QC purposes.

The newest fluoroscopy systems use a flat-panel detector:

When using the mobile C-Arm unit,the x-ray tube should be positioned under the patient and the image intensifier above the patient because:

Typical CRT type television monitors have:

In terms of resolution,the weakest part of the fluoroscopic system is the:

Which of the following happens while in radiographic mode?

Which of the following has a rectangular field of view and a wider dynamic range?

The ABC can be slow in responding,seen as a brief delay in the brightness adjustment.

The __________________ is coated with light-emitting crystals to absorb electrons and emit light.

Flat-panel detectors for digital fluoroscopic imaging can be the:

Semiconductor capacitors are components of the:

This recording system allows the film to be divided into two,four,or more images.

In image-intensified fluoroscopy,the mA used during imaging is considerably lower than in the radiographic mode.

The fiber-optic bundle or optical lens system is used to:

Magnification of the fluoroscopic image results in improved:

The beam splitting mirror is never used with fiber optics.

This is measured in cd/m²/mR/s.

___________ uses a continuous beam of x-rays to create images of the movement of internal structures that can be viewed on a monitor.

Radiation and Its Discovery

The X-Ray Beam

Image Formation and Radiographic Quality

Digital Imaging

Film-Screen Imaging

Exposure Technique Factors

Scatter Control

Exposure Technique Selection

Image Evaluation

Filters

The x-ray beam used with a digital fluoroscopic unit uses _ mA and a ____ beam.