Question 1

Raw data used to form the image histogram are compared with:

Accepted Answer

A)  a normal histogram referenced by the computer. 
B)  all histograms stored for that anatomic part. 
C)  the last histogram of that anatomic part. 
D)  none of these. 
A)  a normal histogram referenced by the computer. 
B)  all histograms stored for that anatomic part. 
C)  the last histogram of that anatomic part. 
D)  none of these. A

Question 2

Magnification of the entire image at the workstation is termed:

Accepted Answer

A)  image intensification. 
B)  macroradiography. 
C)  enlargement. 
D)  zoom. 
A)  image intensification. 
B)  macroradiography. 
C)  enlargement. 
D)  zoom. D

Question 3

Input of annotation for identification of the patient's left or right side:

Accepted Answer

A)  should take the place of the technologist's anatomy markers. 
B)  should be used in conjunction with the technologist's markers. 
C)  eliminates the need for any other type of anatomy markers. 
D)  none of the above. 
A)  should take the place of the technologist's anatomy markers. 
B)  should be used in conjunction with the technologist's markers. 
C)  eliminates the need for any other type of anatomy markers. 
D)  none of the above. B

Question 4

An image manipulation process that fills in the background so that it is darkened is known as:

Accepted Answer

A)  window. 
B)  level. 
C)  shuttering. 
D)  collimation. 
A)  window. 
B)  level. 
C)  shuttering. 
D)  collimation.

Question 5

If too few pixels are sampled, the result will be:

Accepted Answer

A)  high resolution. 
B)  low resolution. 
C)  high contrast. 
D)  low contrast. 
A)  high resolution. 
B)  low resolution. 
C)  high contrast. 
D)  low contrast.

Question 6

Averaging the frequency of each pixel with surrounding pixel values to remove high-frequency noise is called:

Accepted Answer

A)  high-pass filtering. 
B)  low-pass filtering. 
C)  edge enhancement. 
D)  noise enhancement. 
A)  high-pass filtering. 
B)  low-pass filtering. 
C)  edge enhancement. 
D)  noise enhancement.

Question 7

Basic workstation functions include contrast manipulation, edge enhancement, and smoothing.

Accepted Answer

A) True 
 B)False

Question 8

No matter where the orientation stickers or labels exist on a digital cassette, the image will display correctly.

Accepted Answer

A) True 
 B)False

Question 9

Proper patient demographic input ensures:

Accepted Answer

A)  multiple records on each patient. 
B)  linking of all the patient's files. 
C)  multiple versions of the patient's name. 
D)  an increase in the amount of data tracking. 
A)  multiple records on each patient. 
B)  linking of all the patient's files. 
C)  multiple versions of the patient's name. 
D)  an increase in the amount of data tracking.

Question 10

An archive query retrieves images from the PACS based on any of the following except:

Accepted Answer

A)  patient name. 
B)  examination date. 
C)  anatomical area. 
D)  technologist anatomical number. 
A)  patient name. 
B)  examination date. 
C)  anatomical area. 
D)  technologist anatomical number.

Question 11

Automatic rescaling means that images are produced, regardless of the amount of exposure, with:

Accepted Answer

A)  uniform size and shape. 
B)  uniform contrast and density. 
C)  variable size and shape. 
D)  variable contrast and density. 
A)  uniform size and shape. 
B)  uniform contrast and density. 
C)  variable size and shape. 
D)  variable contrast and density.

Question 12

Amplification of the frequencies of the areas of interest is known as:

Accepted Answer

A)  algorithm application. 
B)  center enhancement. 
C)  edge enhancement. 
D)  masking. 
A)  algorithm application. 
B)  center enhancement. 
C)  edge enhancement. 
D)  masking.

Question 13

A histogram displays the useful signal by locating:

Accepted Answer

A)  all pixel values. 
B)  maximum and minimum signal. 
C)  maximum signal only. 
D)  minimum signal only. 
A)  all pixel values. 
B)  maximum and minimum signal. 
C)  maximum signal only. 
D)  minimum signal only.

Question 14

The shape of the histogram is anatomy specific.

Accepted Answer

A) True 
 B)False

Question 15

High-pass filtering is useful for enhancing:

Accepted Answer

A)  small structures. 
B)  fine bone tissues. 
C)  large bony structures. 
D)  organs and soft tissue. 
A)  small structures. 
B)  fine bone tissues. 
C)  large bony structures. 
D)  organs and soft tissue.

Question 16

The higher the kilovoltage peak, the:

Accepted Answer

A)  wider the histogram. 
B)  narrower the histogram. 
C)  higher the frequency. 
D)  lower the frequency. 
A)  wider the histogram. 
B)  narrower the histogram. 
C)  higher the frequency. 
D)  lower the frequency.

Question 17

Image level parameters control image:

Accepted Answer

A)  brightness. 
B)  darkness. 
C)  contrast. 
D)  density. 
A)  brightness. 
B)  darkness. 
C)  contrast. 
D)  density.

Question 18

Historical study of patient examinations can be accomplished through the manual send function.

Accepted Answer

A) True 
 B)False

Question 19

Changing the steepness of the exposure gradient:

Accepted Answer

A)  varies density. 
B)  determines spatial frequency. 
C)  controls image contrast. 
D)  has no effect on the image. 
A)  varies density. 
B)  determines spatial frequency. 
C)  controls image contrast. 
D)  has no effect on the image.

Question 20

Excessive light entering the eye when viewing an image is known as ______ glare.

Accepted Answer

A)  veil 
B)  window 
C)  level 
D)  none of these 
A)  veil 
B)  window 
C)  level 
D)  none of these

Raw data used to form the image histogram are compared with:

Magnification of the entire image at the workstation is termed:

Input of annotation for identification of the patient's left or right side:

An image manipulation process that fills in the background so that it is darkened is known as:

If too few pixels are sampled, the result will be:

Averaging the frequency of each pixel with surrounding pixel values to remove high-frequency noise is called:

Basic workstation functions include contrast manipulation, edge enhancement, and smoothing.

No matter where the orientation stickers or labels exist on a digital cassette, the image will display correctly.

Proper patient demographic input ensures:

An archive query retrieves images from the PACS based on any of the following except:

Automatic rescaling means that images are produced, regardless of the amount of exposure, with:

Amplification of the frequencies of the areas of interest is known as:

A histogram displays the useful signal by locating:

The shape of the histogram is anatomy specific.

High-pass filtering is useful for enhancing:

The higher the kilovoltage peak, the:

Image level parameters control image:

Historical study of patient examinations can be accomplished through the manual send function.

Changing the steepness of the exposure gradient:

Excessive light entering the eye when viewing an image is known as ______ glare.

Introduction to Digital Radiography and Pacs

Digital Image Characteristics

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 3: Digital Radiographic Image Processing and Manipulation

Raw data used to form the image histogram are compared with:

Magnification of the entire image at the workstation is termed:

Input of annotation for identification of the patient's left or right side:

An image manipulation process that fills in the background so that it is darkened is known as:

If too few pixels are sampled, the result will be:

Averaging the frequency of each pixel with surrounding pixel values to remove high-frequency noise is called:

Basic workstation functions include contrast manipulation, edge enhancement, and smoothing.

No matter where the orientation stickers or labels exist on a digital cassette, the image will display correctly.

Proper patient demographic input ensures:

An archive query retrieves images from the PACS based on any of the following except:

Automatic rescaling means that images are produced, regardless of the amount of exposure, with:

Amplification of the frequencies of the areas of interest is known as:

A histogram displays the useful signal by locating:

The shape of the histogram is anatomy specific.

High-pass filtering is useful for enhancing:

The higher the kilovoltage peak, the:

Image level parameters control image:

Historical study of patient examinations can be accomplished through the manual send function.

Changing the steepness of the exposure gradient:

Excessive light entering the eye when viewing an image is known as ______ glare.

Introduction to Digital Radiography and Pacs

Digital Image Characteristics

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