Question 1

Increasing the mA is the way to correct a fluoroscopic image that has:

Accepted Answer

A)  noise. 
B)  pincushion appearance. 
C)  vignetting. 
D)  magnification. 
A)  noise. 
B)  pincushion appearance. 
C)  vignetting. 
D)  magnification.

Question 2

Typical fluoroscopic systems have spatial resolution capabilities in the range of:

Accepted Answer

A)  2 to 3 Lp/mm. 
B)  4 to 6 Lp/mm. 
C)  7 to 9 Lp/mm. 
D)  10 to 12 Lp/mm. 
A)  2 to 3 Lp/mm. 
B)  4 to 6 Lp/mm. 
C)  7 to 9 Lp/mm. 
D)  10 to 12 Lp/mm.

Question 3

The formula to determine the amount of magnification created when in magnification mode is:

Accepted Answer

A)  MF = full size input phosphor/selected input phosphor. 
B)  MF = full size input phosphor2/selected input phosphor2. 
C)  MF = selected input phosphor/full size input phosphor. 
D)  MF = selected input phosphor2/full size input phosphor2. 
A)  MF = full size input phosphor/selected input phosphor. 
B)  MF = full size input phosphor2/selected input phosphor2. 
C)  MF = selected input phosphor/full size input phosphor. 
D)  MF = selected input phosphor2/full size input phosphor2.

Question 4

Which of the following is more light-sensitive?

Accepted Answer

A)  Tube-type camera 
B)  CCD 
C)  There is no difference between the two. 
A)  Tube-type camera 
B)  CCD 
C)  There is no difference between the two.

Question 5

Which of the following directions can the mobile C-Arm unit move?

Accepted Answer

A)  Move the entire "C" toward or away from the base. 
B)  Pivot the "C" around its axis. 
C)  Slide the "C" along its arc. 
D)  All of the above. 
A)  Move the entire "C" toward or away from the base. 
B)  Pivot the "C" around its axis. 
C)  Slide the "C" along its arc. 
D)  All of the above.

Question 6

The CCD's electrical charge from the capacitors is sent to the:

Accepted Answer

A)  output phosphor. 
B)  TV monitor. 
C)  x-ray tube. 
D)  image intensifier. 
A)  output phosphor. 
B)  TV monitor. 
C)  x-ray tube. 
D)  image intensifier.

Question 7

When a CCD is exposed to light,it generates and briefly stores light energy.

Accepted Answer

A) True 
 B)False

Question 8

A loss of brightness around the edge of the fluoroscopic image due to the curve of the photocathode is:

Accepted Answer

A)  noise. 
B)  pincushion appearance. 
C)  vignetting. 
D)  magnification. 
A)  noise. 
B)  pincushion appearance. 
C)  vignetting. 
D)  magnification.

Question 9

The gain related to the decrease in size from the input to the output phosphor that increases the light intensities is the:

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 10

The image intensifier is capable of resolving about ___________,while the monitor can resolve about _______________.

Accepted Answer

A)  1 to 2 Lp/mm; 1 to 2 Lp/mm 
B)  1 to 2 Lp/mm; 5 Lp/mm 
C)  5 Lp/mm; 5 Lp/mm 
D)  5 Lp/mm; 1 to 2 Lp/mm 
A)  1 to 2 Lp/mm; 1 to 2 Lp/mm 
B)  1 to 2 Lp/mm; 5 Lp/mm 
C)  5 Lp/mm; 5 Lp/mm 
D)  5 Lp/mm; 1 to 2 Lp/mm

Question 11

This part of the image intensifier absorbs light and converts light to electrons.

Accepted Answer

A)  Input phosphor 
B)  Output phosphor 
C)  Photocathode 
D)  Electrostatic focusing lenses 
A)  Input phosphor 
B)  Output phosphor 
C)  Photocathode 
D)  Electrostatic focusing lenses

Increasing the mA is the way to correct a fluoroscopic image that has:

Typical fluoroscopic systems have spatial resolution capabilities in the range of:

The formula to determine the amount of magnification created when in magnification mode is:

Which of the following is more light-sensitive?

Which of the following directions can the mobile C-Arm unit move?

The CCD's electrical charge from the capacitors is sent to the:

When a CCD is exposed to light,it generates and briefly stores light energy.

A loss of brightness around the edge of the fluoroscopic image due to the curve of the photocathode is:

The gain related to the decrease in size from the input to the output phosphor that increases the light intensities is the:

The image intensifier is capable of resolving about _,while the monitor can resolve about _____.

This part of the image intensifier absorbs light and converts light to electrons.

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

Increasing the mA is the way to correct a fluoroscopic image that has:

Typical fluoroscopic systems have spatial resolution capabilities in the range of:

The formula to determine the amount of magnification created when in magnification mode is:

Which of the following is more light-sensitive?

Which of the following directions can the mobile C-Arm unit move?

The CCD's electrical charge from the capacitors is sent to the:

When a CCD is exposed to light,it generates and briefly stores light energy.

A loss of brightness around the edge of the fluoroscopic image due to the curve of the photocathode is:

The gain related to the decrease in size from the input to the output phosphor that increases the light intensities is the:

The image intensifier is capable of resolving about ___________,while the monitor can resolve about _______________.

This part of the image intensifier absorbs light and converts light to electrons.

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 image intensifier is capable of resolving about _,while the monitor can resolve about _____.