Question 1

Compared to baseline measurements, speed and contrast indicators should not vary more than ± _____ optical density.

Accepted Answer

A)  0.05 
B)  0.10 
C)  0.15 
D)  0.20

Question 2

Based on the histogram analysis, consistent image brightness is accomplished through:

Accepted Answer

A)  Adjustment of window width 
B)  Automatic rescaling 
C)  Manipulation of the exposure indicator 
D)  Manipulation of the LUT

Question 3

Digital images that include all the raw data appear:

Accepted Answer

A)  Very bright 
B)  Very dark 
C)  With low contrast 
D)  With high contrast

Question 4

The communication standard for medical information is:

Accepted Answer

A)  PACS 
B)  HL7 
C)  DICOM 
D)  RIS

Question 5

Which film processing system best achieves agitation, continuous mixing, and filtration of the chemical solutions?

Accepted Answer

A)  Transport system 
B)  Temperature control system 
C)  Recirculation system 
D)  Replenishment system

Question 6

Which of the following is not accomplished through the histogram analysis?

Accepted Answer

A)  Compensation for image underexposure 
B)  Identification of the edges of the image 
C)  Manipulation of image contrast 
D)  Compensation for image overexposure

Question 7

If films begin to show brown staining after being in storage for a long time, there might be a problem with which stage of the processing cycle?

Accepted Answer

A)  Development 
B)  Fixing 
C)  Washing 
D)  Drying

Question 8

The monitor matrix size should be _________________ the image matrix size.

Accepted Answer

A)  Smaller than 
B)  At least as large as 
C)  Five times larger than 
D)  Ten times larger than

Question 9

The histogram for a digital image is compared to a pre-established histogram of the anatomic part being imaged.

Accepted Answer

A) True 
 B)False

Question 10

The most important performance criterion of a film illuminator is:

Accepted Answer

A)  Its size 
B)  The uniformity of light intensity 
C)  The illuminator display matrix 
D)  Having the brightest possible light

Question 11

LCD stands for:

Accepted Answer

A)  Liquid cathode display 
B)  Liquid crystal display 
C)  Logarithmically created digitization 
D)  Layered components diagram

Question 12

A high level of ambient lighting will improve the viewer's perception of digital image quality as displayed on the monitor.

Accepted Answer

A) True 
 B)False

Question 13

At what stage does the process of removing unexposed and undeveloped silver halide from the film emulsion occur?

Accepted Answer

A)  Drying 
B)  Fixing 
C)  Washing 
D)  Developing

Question 14

Windowing does not alter the original stored pixel values.

Accepted Answer

A) True 
 B)False

Question 15

All display monitors used throughout the radiology department are of similar quality.

Accepted Answer

A) True 
 B)False

Question 16

A 40 watt light bulb is appropriate for a darkroom safelight.

Accepted Answer

A) True 
 B)False

Question 17

Dry laser printers use heat to print the image.

Accepted Answer

A) True 
 B)False

Question 18

What component of the developer solution is responsible for the gray areas on the image?

Accepted Answer

A)  Phenidone 
B)  Water 
C)  Hydroquinone 
D)  Thiosulfate

Question 19

Ambient lighting refers to the darkness or brightness of the digital image viewing area.

Accepted Answer

A) True 
 B)False

Question 20

Which of the following is/are reducing agents found in the developer solution?

Accepted Answer

A)  Phenidone 
B)  Hydroquinone 
C)  Ammonium thiosulfate 
D)  A and B

Exam 7: Image Processing and Display

Compared to baseline measurements, speed and contrast indicators should not vary more than ± _____ optical density.

Based on the histogram analysis, consistent image brightness is accomplished through:

Digital images that include all the raw data appear:

The communication standard for medical information is:

Which film processing system best achieves agitation, continuous mixing, and filtration of the chemical solutions?

Which of the following is not accomplished through the histogram analysis?

If films begin to show brown staining after being in storage for a long time, there might be a problem with which stage of the processing cycle?

The monitor matrix size should be _________________ the image matrix size.

The histogram for a digital image is compared to a pre-established histogram of the anatomic part being imaged.

The most important performance criterion of a film illuminator is:

LCD stands for:

A high level of ambient lighting will improve the viewer's perception of digital image quality as displayed on the monitor.

At what stage does the process of removing unexposed and undeveloped silver halide from the film emulsion occur?

Windowing does not alter the original stored pixel values.

All display monitors used throughout the radiology department are of similar quality.

A 40 watt light bulb is appropriate for a darkroom safelight.

Dry laser printers use heat to print the image.

What component of the developer solution is responsible for the gray areas on the image?

Ambient lighting refers to the darkness or brightness of the digital image viewing area.

Which of the following is/are reducing agents found in the developer solution?