Question 1

Distortion of the fluoroscopic image that appears as unequal magnification is:

Accepted Answer

A)   noise.
B)   pincushion appearance.
C)   vignetting.
D)   magnification.E) All of the above
F) C) and D)

Question 2

The input phosphor is ______________ than the output phosphor.

Accepted Answer

A)   larger
B)   smaller
C)   the same size as
D)   brighterE) A) and B)
F) None of the above

Question 3

The purpose of a camera tube or CCD is to record the fluoroscopic image.

Accepted Answer

A) True 
 B)False

Question 4

Each electron that interacts with the output phosphor will result in significantly fewer light photons being produced in comparison to the number of light photons it took to release that electron.

Accepted Answer

A) True 
 B)False

Question 5

Use of which of the following systems will result in less radiation dose to the patient?

Accepted Answer

A)   Tube-type camera
B)   CCD
C)   There is no difference between the two.D) A) and C)
E) None of the above

Question 6

The analog to digital converter:

Accepted Answer

A)   makes the electrical signal understandable to the computer.
B)   determines the contrast resolution of the system.
C)   determines the image matrix.
D)   all of the above.E) B) and C)
F) C) and D)

Question 7

Releasing the pressure applied to the ________________ will terminate the radiation exposure during fluoroscopy.

Accepted Answer

A)   photocathode
B)   input phosphor
C)   deadman switch
D)   radiographic modeE) All of the above
F) A) and B)

Question 8

Early versions of digital fluoroscopy used the standard system and added:

Accepted Answer

A)   a different camera.
B)   an ADC.
C)   videotape.
D)   none of the above.E) B) and C)
F) A) and B)

Question 9

Which of the following is easier to move around and allows better access to the patient during a procedure?

Accepted Answer

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

Question 10

Which of the following has the possibility of demonstrating veiling glare and pincushion distortion?

Accepted Answer

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

Question 11

The __________________________ consists of a light-emitting material (like cesium iodide) to absorbs x-rays and emits light.

Accepted Answer

A)   input phosphor
B)   output phosphor
C)   photocathode
D)   accelerating anodeE) A) and B)
F) C) and D)

Question 12

The process that the exit radiation from the anatomic area of interest interacts with the input phosphor for conversion to visible light,which are converted to electrons by a photocathode,then focused by electrostatic focusing lenses,and accelerated toward an anode to strike the output phosphor is:

Accepted Answer

A)   fluoroscopy.
B)   image intensification.
C)   deadman switch.
D)   radiographic mode.E) A) and D)
F) A) and C)

Question 13

A disadvantage of using magnification mode during fluoroscopy is:

Accepted Answer

A)   the image has less resolution.
B)   the image brightness is inconsistent.
C)   the patient receives additional dose.
D)   none of the above.E) B) and C)
F) C) and D)

Question 14

In fluoroscopy,shape distortion is caused by:

Accepted Answer

A)   angling the tube.
B)   angling the image intensifier.
C)   the curved shape of the photocathode.
D)   the position of the electrostatic focusing lenses.E) A) and C)
F) All of the above

Question 15

Which of the following requires more radiation to produce quality fluoroscopic images?

Accepted Answer

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

Question 16

Fluoroscopic equipment should be inspected every:

Accepted Answer

A)   week.
B)   month.
C)   6 months.
D)   year.E) A) and B)
F) All of the above

Question 17

___________ imaging is accomplished with fluoroscopy as opposed to radiography.

Accepted Answer

A)   Static
B)   Still
C)   Dynamic
D)   ColorizedE) B) and D)
F) None of the above

Question 18

Which of the following does not require any additional devices for spot filming during the fluoroscopic procedure?

Accepted Answer

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

Question 19

A typical high-resolution monitor will have:

Accepted Answer

A)   825 lines.
B)   1024 lines.
C)   1872 lines.
D)   2034 lines.E) All of the above
F) A) and B)

Question 20

Which of the following produces an image with more noise?

Accepted Answer

A)   Vidicon camera
B)   CCD
C)   There is no difference between the two.D) A) and C)
E) B) and C)

Exam 10: Dynamic Imaging: Fluoroscopy

The input phosphor is ______________ than the output phosphor.

Correct AnswerverifiedShow Answer

Early versions of digital fluoroscopy used the standard system and added:

Correct AnswerverifiedShow Answer

In fluoroscopy,shape distortion is caused by:

Correct AnswerverifiedShow Answer

Distortion of the fluoroscopic image that appears as unequal magnification is:

Correct AnswerverifiedShow Answer

Which of the following is easier to move around and allows better access to the patient during a procedure?

Correct AnswerverifiedShow Answer

The process that the exit radiation from the anatomic area of interest interacts with the input phosphor for conversion to visible light,which are converted to electrons by a photocathode,then focused by electrostatic focusing lenses,and accelerated toward an anode to strike the output phosphor is:

Correct AnswerverifiedShow Answer

The __________________________ consists of a light-emitting material (like cesium iodide) to absorbs x-rays and emits light.

Correct AnswerverifiedShow Answer

___________ imaging is accomplished with fluoroscopy as opposed to radiography.

Correct AnswerverifiedShow Answer

The purpose of a camera tube or CCD is to record the fluoroscopic image.

Correct AnswerverifiedShow Answer

Each electron that interacts with the output phosphor will result in significantly fewer light photons being produced in comparison to the number of light photons it took to release that electron.

Correct AnswerverifiedShow Answer

Which of the following requires more radiation to produce quality fluoroscopic images?

Correct AnswerverifiedShow Answer

Which of the following has the possibility of demonstrating veiling glare and pincushion distortion?

Correct AnswerverifiedShow Answer

Fluoroscopic equipment should be inspected every:

Correct AnswerverifiedShow Answer

Releasing the pressure applied to the ________________ will terminate the radiation exposure during fluoroscopy.

Correct AnswerverifiedShow Answer

Use of which of the following systems will result in less radiation dose to the patient?

Correct AnswerverifiedShow Answer

Which of the following does not require any additional devices for spot filming during the fluoroscopic procedure?

Correct AnswerverifiedShow Answer

A typical high-resolution monitor will have:

Correct AnswerverifiedShow Answer

The analog to digital converter:

Correct AnswerverifiedShow Answer

A disadvantage of using magnification mode during fluoroscopy is:

Correct AnswerverifiedShow Answer

Which of the following produces an image with more noise?

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified