Question 1

Which of the following has more spatial distortion?

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. A

Question 2

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 C

Question 3

The __________________ absorbs electrons and emits 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 B

Question 4

A typical high resolution monitor will have:

Accepted Answer

A)  825 lines 
B)  1024 lines 
C)  1872 lines 
D)  2034 lines 
A)  825 lines 
B)  1024 lines 
C)  1872 lines 
D)  2034 lines

Question 5

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 $\times$ flux gain 
D)  None of the above 
A)  Brightness gain = minification gain - flux gain 
B)  Brightness gain = minification gain / flux gain 
C)  Brightness gain = minification gain $\times$ flux gain 
D)  None of the above

Question 6

Fluoroscopic equipment should be inspected every:

Accepted Answer

A)  Week 
B)  Month 
C)  6 months 
D)  Year 
A)  Week 
B)  Month 
C)  6 months 
D)  Year

Question 7

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 8

The SSD should be no less than ___________ for a fixed or stationary fluoro unit and no less than ____________ for a mobile fluoro unit.

Accepted Answer

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

Question 9

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 
A)  Angling the tube 
B)  Angling the image intensifier 
C)  The curved shape of the photocathode 
D)  The position of the electrostatic focusing lenses

Question 10

In order to record the dynamic image 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 11

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

Accepted Answer

A) True 
 B)False

Question 12

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 13

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 14

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

Question 15

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 16

Which of the following produces an image with more noise?

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 17

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 18

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 19

The beam splitting mirror is never used with fiber optics.

Accepted Answer

A) True 
 B)False

Question 20

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

Which of the following has more spatial distortion?

Each capacitor in a CCD represents a(n):

The __________________ absorbs electrons and emits light.

A typical high resolution monitor will have:

The formula for brightness gain is:

Fluoroscopic equipment should be inspected every:

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:

The SSD should be no less than _ for a fixed or stationary fluoro unit and no less than __ for a mobile fluoro unit.

In fluoroscopy, shape distortion is caused by:

In order to record the dynamic image you will need to use:

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

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

Which of the following is more light-sensitive?

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

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

Which of the following produces an image with more noise?

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 beam splitting mirror is never used with fiber optics.

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

Radiation and Its Discover

The X-Ray Beam

Image Formation and Radiographic Quality

Exposure Technique Factors

Scatter Control

Image Receptors and Image Acquisition

Image Processing and Display

Exposure Technique Selection

Image Evaluation

Filters

Exam 10: Dynamic Imaging: Fluoroscopy

Which of the following has more spatial distortion?

Each capacitor in a CCD represents a(n):

The __________________ absorbs electrons and emits light.

A typical high resolution monitor will have:

The formula for brightness gain is:

Fluoroscopic equipment should be inspected every:

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:

The SSD should be no less than ___________ for a fixed or stationary fluoro unit and no less than ____________ for a mobile fluoro unit.

In fluoroscopy, shape distortion is caused by:

In order to record the dynamic image you will need to use:

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

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

Which of the following is more light-sensitive?

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

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

Which of the following produces an image with more noise?

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 beam splitting mirror is never used with fiber optics.

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

Radiation and Its Discover

The X-Ray Beam

Image Formation and Radiographic Quality

Exposure Technique Factors

Scatter Control

Image Receptors and Image Acquisition

Image Processing and Display

Exposure Technique Selection

Image Evaluation

Filters

The SSD should be no less than _ for a fixed or stationary fluoro unit and no less than __ for a mobile fluoro unit.

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

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