Question 1

It is possible to achieve an MTF of 100%.

Accepted Answer

A) True 
 B)False  False

Question 2

The size of the pixel is determined by the:

Accepted Answer

A)  bit. 
B)  bit depth. 
C)  matrix. 
D)  byte. 
A)  bit. 
B)  bit depth. 
C)  matrix. 
D)  byte. C

Question 3

The efficiency of a system to convert x-ray input signal into a useful output image is known as:

Accepted Answer

A)  dynamic range. 
B)  spatial resolution. 
C)  latitude. 
D)  detective quantum efficiency. 
A)  dynamic range. 
B)  spatial resolution. 
C)  latitude. 
D)  detective quantum efficiency. D

Question 4

The ability of a digital system to display subtle changes in shades of gray is called:

Accepted Answer

A)  image quality. 
B)  contrast resolution. 
C)  spatial resolution. 
D)  dynamic range. 
A)  image quality. 
B)  contrast resolution. 
C)  spatial resolution. 
D)  dynamic range.

Question 5

The reflection of ambient light can be problematic with monochromatic monitors.

Accepted Answer

A) True 
 B)False

Question 6

The range of exposure values the image detector is able to produce is known as:

Accepted Answer

A)  dynamic range. 
B)  modulation transfer. 
C)  latitude. 
D)  detective quantum efficiency. 
A)  dynamic range. 
B)  modulation transfer. 
C)  latitude. 
D)  detective quantum efficiency.

Question 7

A perfect image processing system would have an MTF of:

Accepted Answer

A)  1%. 
B)  10%. 
C)  100%. 
D)  1000%. 
A)  1%. 
B)  10%. 
C)  100%. 
D)  1000%.

Question 8

The continuous and varying levels of brightness and colors describes _____ images.

Accepted Answer

A)  analog 
B)  digital 
C)  medical 
D)  radiographic 
A)  analog 
B)  digital 
C)  medical 
D)  radiographic

Question 9

How dark or light a digital image appears on a display monitor is known as:

Accepted Answer

A)  density. 
B)  contrast resolution. 
C)  brightness. 
D)  spatial resolution. 
A)  density. 
B)  contrast resolution. 
C)  brightness. 
D)  spatial resolution.

Question 10

Factors that can adversely affect the pixel values expressed in the deviation index include all of the following except:

Accepted Answer

A)  gonadal shielding within the image. 
B)  a prosthesis within the image. 
C)  failure of the system to recognize the exposure indicator. 
D)  failure of the system to recognize the collimated border. 
A)  gonadal shielding within the image. 
B)  a prosthesis within the image. 
C)  failure of the system to recognize the exposure indicator. 
D)  failure of the system to recognize the collimated border.

Question 11

Each square in a matrix is called a:

Accepted Answer

A)  matrix element. 
B)  picture element. 
C)  bit. 
D)  byte. 
A)  matrix element. 
B)  picture element. 
C)  bit. 
D)  byte.

Question 12

The measurement for radiation that was incident on the image receptor for a particular exposure is known as:

Accepted Answer

A)  Gy. 
B)  KSTD. 
C)  KIND. 
D)  KTGT. 
A)  Gy. 
B)  KSTD. 
C)  KIND. 
D)  KTGT.

Question 13

Which of the following statements is not true?

Accepted Answer

A)  Exposure index refers to the amount of exposure to the patient. 
B)  Exposure index refers to the amount of exposure to the image receptor. 
C)  Exposure is not uniformly represented across manufacturers. 
D)  Exposure index standardization is beneficial to the technologist. 
A)  Exposure index refers to the amount of exposure to the patient. 
B)  Exposure index refers to the amount of exposure to the image receptor. 
C)  Exposure is not uniformly represented across manufacturers. 
D)  Exposure index standardization is beneficial to the technologist.

Question 14

The number of bits per pixel is known as bit:

Accepted Answer

A)  pitch. 
B)  depth. 
C)  height. 
D)  width. 
A)  pitch. 
B)  depth. 
C)  height. 
D)  width.

Question 15

The more light spread, the ______ the MTF.

Accepted Answer

A)  higher 
B)  lower 
C)  more equal 
D)  none of these 
A)  higher 
B)  lower 
C)  more equal 
D)  none of these

Question 16

Deviation index is the difference between _____ and _____ expressed in logarithmic fashion.

Accepted Answer

A)  actual exposure (KIN
D) ; target exposure (KTGT) 
B)  standard exposure (KST
D) ; actual exposure (KIN
D)  
C)  standard exposure (KST
D) ; target exposure (KTGT) 
A)  actual exposure (KIN
D) ; target exposure (KTGT) 
B)  standard exposure (KST
D) ; actual exposure (KIN
D)  
C)  standard exposure (KST
D) ; target exposure (KTGT)

Question 17

"The sum of the components in a recording system cannot be greater than the system as a whole" is a definition of:

Accepted Answer

A)  modulation transfer function (MTF). 
B)  enhanced visualization image processing. 
C)  digital image contrast and density latitude. 
D)  principles of contrast enhancement. 
A)  modulation transfer function (MTF). 
B)  enhanced visualization image processing. 
C)  digital image contrast and density latitude. 
D)  principles of contrast enhancement.

Question 18

A system's ability to respond to varying levels of exposure, resulting in more detail, is referred to as:

Accepted Answer

A)  spatial resolution. 
B)  dynamic range. 
C)  contrast resolution. 
D)  dynamic resolution. 
A)  spatial resolution. 
B)  dynamic range. 
C)  contrast resolution. 
D)  dynamic resolution.

Question 19

Which of the following statements is not true?

Accepted Answer

A)  Matrix size can change without affecting the FOV. 
B)  FOV can change without affecting the matrix. 
C)  Changing the matrix or the FOV will change the size of the pixel. 
D)  Changing the matrix and the FOV will not change the size of the pixel. 
A)  Matrix size can change without affecting the FOV. 
B)  FOV can change without affecting the matrix. 
C)  Changing the matrix or the FOV will change the size of the pixel. 
D)  Changing the matrix and the FOV will not change the size of the pixel.

Question 20

MTF is a way to quantify the contribution of each system component and the component's overall efficiency.

Accepted Answer

A) True 
 B)False

It is possible to achieve an MTF of 100%.

The size of the pixel is determined by the:

The efficiency of a system to convert x-ray input signal into a useful output image is known as:

The ability of a digital system to display subtle changes in shades of gray is called:

The reflection of ambient light can be problematic with monochromatic monitors.

The range of exposure values the image detector is able to produce is known as:

A perfect image processing system would have an MTF of:

The continuous and varying levels of brightness and colors describes _____ images.

How dark or light a digital image appears on a display monitor is known as:

Factors that can adversely affect the pixel values expressed in the deviation index include all of the following except:

Each square in a matrix is called a:

The measurement for radiation that was incident on the image receptor for a particular exposure is known as:

Which of the following statements is not true?

The number of bits per pixel is known as bit:

The more light spread, the ______ the MTF.

Deviation index is the difference between _ and _ expressed in logarithmic fashion.

"The sum of the components in a recording system cannot be greater than the system as a whole" is a definition of:

A system's ability to respond to varying levels of exposure, resulting in more detail, is referred to as:

Which of the following statements is not true?

MTF is a way to quantify the contribution of each system component and the component's overall efficiency.

Introduction to Digital Radiography and Pacs

Digital Radiographic Image Processing and Manipulation

Photostimulable Phosphor Image Capture

Tft Flat Panel Array Image Acquisition

Ccdcmos Image Capture

Basic Computer Principles

Networking and Communications Basics

Pacs Fundamentals

Pacs Archiving and Peripherals

Ensuring Quality in Pacs

Quality Acceptance Testing Within Digital Projection Imaging

Filters

Exam 2: Digital Image Characteristics

It is possible to achieve an MTF of 100%.

The size of the pixel is determined by the:

The efficiency of a system to convert x-ray input signal into a useful output image is known as:

The ability of a digital system to display subtle changes in shades of gray is called:

The reflection of ambient light can be problematic with monochromatic monitors.

The range of exposure values the image detector is able to produce is known as:

A perfect image processing system would have an MTF of:

The continuous and varying levels of brightness and colors describes _____ images.

How dark or light a digital image appears on a display monitor is known as:

Factors that can adversely affect the pixel values expressed in the deviation index include all of the following except:

Each square in a matrix is called a:

The measurement for radiation that was incident on the image receptor for a particular exposure is known as:

Which of the following statements is not true?

The number of bits per pixel is known as bit:

The more light spread, the ______ the MTF.

Deviation index is the difference between _____ and _____ expressed in logarithmic fashion.

"The sum of the components in a recording system cannot be greater than the system as a whole" is a definition of:

A system's ability to respond to varying levels of exposure, resulting in more detail, is referred to as:

Which of the following statements is not true?

MTF is a way to quantify the contribution of each system component and the component's overall efficiency.

Introduction to Digital Radiography and Pacs

Digital Radiographic Image Processing and Manipulation

Photostimulable Phosphor Image Capture

Tft Flat Panel Array Image Acquisition

Ccdcmos Image Capture

Basic Computer Principles

Networking and Communications Basics

Pacs Fundamentals

Pacs Archiving and Peripherals

Ensuring Quality in Pacs

Quality Acceptance Testing Within Digital Projection Imaging

Filters

Deviation index is the difference between _ and _ expressed in logarithmic fashion.