Question 1

Digital fluoroscopy is improved by using:

Accepted Answer

A)  a vidicon camera. 
B)  videotape. 
C)  a beam splitting mirror. 
D)  a CCD. 
A)  a vidicon camera. 
B)  videotape. 
C)  a beam splitting mirror. 
D)  a CCD.

Question 2

In comparison,the vidicon camera tube has ______________ spatial resolution,and the CCD requires ________________ radiation to produce a good fluoroscopic image.

Accepted Answer

A)  less; more 
B)  less; less 
C)  better; more 
D)  better; less 
A)  less; more 
B)  less; less 
C)  better; more 
D)  better; less

Question 3

The conversion factor is a(n)___________ term for brightness gain and is typically about __________ of the brightness gain value.

Accepted Answer

A)  older; 1% 
B)  older; 10% 
C)  newer; 1% 
D)  newer; 10% 
A)  older; 1% 
B)  older; 10% 
C)  newer; 1% 
D)  newer; 10%

Question 4

In order to record the dynamic image with image-intensified fluoroscopy,you will need to use:

Accepted Answer

A)  cassette spot filming. 
B)  film cameras for spot filming. 
C)  videotape. 
D)  none of the above. 
A)  cassette spot filming. 
B)  film cameras for spot filming. 
C)  videotape. 
D)  none of the above.

Question 5

The purpose of a beam splitting mirror is to:

Accepted Answer

A)  be able to view the fluoroscopic image on more than one television. 
B)  reduce the intensity of the image from the output phosphor. 
C)  allow spot filming to be done during fluoroscopy. 
D)  none of the above. 
A)  be able to view the fluoroscopic image on more than one television. 
B)  reduce the intensity of the image from the output phosphor. 
C)  allow spot filming to be done during fluoroscopy. 
D)  none of the above.

Question 6

The dose area product (DAP)and cumulative air kerma (kinetic energy released in a mass)provide radiation exposure data and need to be recorded in the patient's medical record.

Accepted Answer

A) True 
 B)False

Question 7

Which of the following most accurately shows the energy sequence during image-intensified fluoroscopy?

Accepted Answer

A)  Light to x-rays to electrons to light 
B)  X-rays to light to electrons to light 
C)  X-rays to electrons to light 
D)  Electrons to light to electrons 
A)  Light to x-rays to electrons to light 
B)  X-rays to light to electrons to light 
C)  X-rays to electrons to light 
D)  Electrons to light to electrons

Question 8

When operated in magnification mode,the electrostatic lenses have ________ voltage.

Accepted Answer

A)  decreased 
B)  increased 
C)  the same amount as usual 
D)  one half 
A)  decreased 
B)  increased 
C)  the same amount as usual 
D)  one half

Question 9

If a 30/23/15 cm image intensifier is operated in the 23 cm mode,the fluoroscopic image will be magnified by a factor of:

Accepted Answer

A)  1.3. 
B)  1.5. 
C)  1.7. 
D)  2. 
A)  1.3. 
B)  1.5. 
C)  1.7. 
D)  2.

Question 10

Vidicon refers to a type of:

Accepted Answer

A)  television monitor. 
B)  camera tube. 
C)  CCD. 
D)  fiber optics. 
A)  television monitor. 
B)  camera tube. 
C)  CCD. 
D)  fiber optics.

Question 11

When using magnification mode,the fluoroscopist needs to manually set the exposure factors higher to compensate for the reduced diameter input phosphor.

Accepted Answer

A) True 
 B)False

Question 12

Which of the following require the x-ray beam to be in radiographic mode?

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 13

In reference to image intensification,the function that adjusts and maintains the overall image brightness and contrast during the fluoroscopic procedure is:

Accepted Answer

A)  DQE. 
B)  APR. 
C)  ABC. 
D)  AEC. 
A)  DQE. 
B)  APR. 
C)  ABC. 
D)  AEC.

Question 14

The SSD should be no less than ___________ for a fixed or stationary fluoro unit and no less than ____________ for a mobile fluoro unit (C-Arm).

Accepted Answer

A)  38 cm; 30 cm 
B)  30 cm; 38 cm 
C)  38 in; 30 in 
D)  30 in; 38 in 
A)  38 cm; 30 cm 
B)  30 cm; 38 cm 
C)  38 in; 30 in 
D)  30 in; 38 in

Question 15

The electron gun in the television monitor sends out a steady stream of electrons to activate the fluorescent screen.

Accepted Answer

A) True 
 B)False

Question 16

When the electron beam in the camera travels back and forth across,from the top to bottom,it is moving in a ___________ pattern.

Accepted Answer

A)  sweep 
B)  brush 
C)  raster 
D)  rooster 
A)  sweep 
B)  brush 
C)  raster 
D)  rooster

Question 17

Each capacitor in a CCD represents a(n):

Accepted Answer

A)  line. 
B)  image. 
C)  pixel. 
D)  electric charge. 
A)  line. 
B)  image. 
C)  pixel. 
D)  electric charge.

Question 18

Operating the fluoroscope in a pulsed mode will reduce the number of images each second,decrease patient dose,and reduce the visibility of patient motion.

Accepted Answer

A) True 
 B)False

Question 19

The conventional or current method for viewing the fluoroscopic image is by:

Accepted Answer

A)  using a hand-held device. 
B)  looking directly at the output phosphor. 
C)  using a TV monitor. 
D)  using a mirror-optics system. 
A)  using a hand-held device. 
B)  looking directly at the output phosphor. 
C)  using a TV monitor. 
D)  using a mirror-optics system.

Question 20

The formula for brightness gain is:

Accepted Answer

A)  brightness gain = minification gain - flux gain. 
B)  brightness gain = minification gain/flux gain. 
C)  brightness gain = minification gain × flux gain. 
D)  brightness gain = minification gain + flux gain. 
A)  brightness gain = minification gain - flux gain. 
B)  brightness gain = minification gain/flux gain. 
C)  brightness gain = minification gain × flux gain. 
D)  brightness gain = minification gain + flux gain.

Digital fluoroscopy is improved by using:

In comparison,the vidicon camera tube has spatial resolution,and the CCD requires __ radiation to produce a good fluoroscopic image.

The conversion factor is a(n)_ term for brightness gain and is typically about of the brightness gain value.

In order to record the dynamic image with image-intensified fluoroscopy,you will need to use:

The purpose of a beam splitting mirror is to:

The dose area product (DAP)and cumulative air kerma (kinetic energy released in a mass)provide radiation exposure data and need to be recorded in the patient's medical record.

Which of the following most accurately shows the energy sequence during image-intensified fluoroscopy?

When operated in magnification mode,the electrostatic lenses have ________ voltage.

If a 30/23/15 cm image intensifier is operated in the 23 cm mode,the fluoroscopic image will be magnified by a factor of:

Vidicon refers to a type of:

When using magnification mode,the fluoroscopist needs to manually set the exposure factors higher to compensate for the reduced diameter input phosphor.

Which of the following require the x-ray beam to be in radiographic mode?

In reference to image intensification,the function that adjusts and maintains the overall image brightness and contrast during the fluoroscopic procedure is:

The SSD should be no less than _ for a fixed or stationary fluoro unit and no less than __ for a mobile fluoro unit (C-Arm).

The electron gun in the television monitor sends out a steady stream of electrons to activate the fluorescent screen.

When the electron beam in the camera travels back and forth across,from the top to bottom,it is moving in a ___________ pattern.

Each capacitor in a CCD represents a(n):

Operating the fluoroscope in a pulsed mode will reduce the number of images each second,decrease patient dose,and reduce the visibility of patient motion.

The conventional or current method for viewing the fluoroscopic image is by:

The formula for brightness gain is:

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

Digital fluoroscopy is improved by using:

In comparison,the vidicon camera tube has ______________ spatial resolution,and the CCD requires ________________ radiation to produce a good fluoroscopic image.

The conversion factor is a(n)___________ term for brightness gain and is typically about __________ of the brightness gain value.

In order to record the dynamic image with image-intensified fluoroscopy,you will need to use:

The purpose of a beam splitting mirror is to:

The dose area product (DAP)and cumulative air kerma (kinetic energy released in a mass)provide radiation exposure data and need to be recorded in the patient's medical record.

Which of the following most accurately shows the energy sequence during image-intensified fluoroscopy?

When operated in magnification mode,the electrostatic lenses have ________ voltage.

If a 30/23/15 cm image intensifier is operated in the 23 cm mode,the fluoroscopic image will be magnified by a factor of:

Vidicon refers to a type of:

When using magnification mode,the fluoroscopist needs to manually set the exposure factors higher to compensate for the reduced diameter input phosphor.

Which of the following require the x-ray beam to be in radiographic mode?

In reference to image intensification,the function that adjusts and maintains the overall image brightness and contrast during the fluoroscopic procedure is:

The SSD should be no less than ___________ for a fixed or stationary fluoro unit and no less than ____________ for a mobile fluoro unit (C-Arm).

The electron gun in the television monitor sends out a steady stream of electrons to activate the fluorescent screen.

When the electron beam in the camera travels back and forth across,from the top to bottom,it is moving in a ___________ pattern.

Each capacitor in a CCD represents a(n):

Operating the fluoroscope in a pulsed mode will reduce the number of images each second,decrease patient dose,and reduce the visibility of patient motion.

The conventional or current method for viewing the fluoroscopic image is by:

The formula for brightness gain is:

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

In comparison,the vidicon camera tube has spatial resolution,and the CCD requires __ radiation to produce a good fluoroscopic image.

The conversion factor is a(n)_ term for brightness gain and is typically about of the brightness gain value.

The SSD should be no less than _ for a fixed or stationary fluoro unit and no less than __ for a mobile fluoro unit (C-Arm).