Question 1

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%. C

Question 2

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. B

Question 3

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. D

Question 4

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 5

"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 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

The ability of an imaging system to demonstrate small details of an object is known as

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 8

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 9

Air kerma is the measurement of radiation energy absorbed in a unit of air.

Accepted Answer

A) True 
 B)False

Question 10

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.

Question 11

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 12

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

Accepted Answer

A) True 
 B)False

Question 13

Critical characteristics of a digital image include all of the following except

Accepted Answer

A)  contrast resolution. 
B)  noise efficiency. 
C)  sample resolution. 
D)  dose efficiency of the receptor. 
A)  contrast resolution. 
B)  noise efficiency. 
C)  sample resolution. 
D)  dose efficiency of the receptor.

Question 14

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.

Question 15

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 16

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 17

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

Accepted Answer

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

Question 18

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 19

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

Accepted Answer

A) True 
 B)False

Question 20

It is possible to achieve an MTF of 100%.

Accepted Answer

A) True 
 B)False

A perfect image processing system would have an MTF of

Each square in a matrix is called a

Which of the following statements is not true?

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

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

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

The ability of an imaging system to demonstrate small details of an object is known as

Which of the following statements is not true?

Air kerma is the measurement of radiation energy absorbed in a unit of air.

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

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

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

Critical characteristics of a digital image include all of the following except

The size of the pixel is determined by the

The number of bits per pixel is known as bit

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

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

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

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

It is possible to achieve an MTF of 100%.

Introduction to Digital Radiography and Picture Archiving and Communication Systems

Digital Radiographic Image Processing and Manipulation

Photostimulable Phosphor Image Capture

Thin-Film Transistor Flat-Panel Array Image Acquisition

Charge-Coupled Devicecomplementary Metal Oxide Semiconductor Image Capture

Basic Computer Principles

Networking and Communication Basics

Picture Archiving and Communication System Fundamentals

Picture Archiving and Communication System Archiving and Peripherals

Medical Informatics

Ensuring Quality in Picture Archiving and Communication Systems

Quality Acceptance Testing Within Digital Projection Imaging

Filters

Exam 2: Digital Imaging Characteristics

A perfect image processing system would have an MTF of

Each square in a matrix is called a

Which of the following statements is not true?

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

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

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

The ability of an imaging system to demonstrate small details of an object is known as

Which of the following statements is not true?

Air kerma is the measurement of radiation energy absorbed in a unit of air.

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

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

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

Critical characteristics of a digital image include all of the following except

The size of the pixel is determined by the

The number of bits per pixel is known as bit

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

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

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

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

It is possible to achieve an MTF of 100%.

Introduction to Digital Radiography and Picture Archiving and Communication Systems

Digital Radiographic Image Processing and Manipulation

Photostimulable Phosphor Image Capture

Thin-Film Transistor Flat-Panel Array Image Acquisition

Charge-Coupled Devicecomplementary Metal Oxide Semiconductor Image Capture

Basic Computer Principles

Networking and Communication Basics

Picture Archiving and Communication System Fundamentals

Picture Archiving and Communication System Archiving and Peripherals

Medical Informatics

Ensuring Quality in Picture Archiving and Communication Systems

Quality Acceptance Testing Within Digital Projection Imaging

Filters

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