Question 1

Early reconstruction of raw computed tomography data took a few ______ to form a recognizable image.

Accepted Answer

A)  Minutes
B)  Hours
C)  DaysD) A) and B)
E) A) and C)

Question 2

Which two modalities could easily be converted to digital imaging properties?

Accepted Answer

A)  CT and ultrasonography
B)  CT and MRI
C)  Ultrasonography and nuclear medicine
D)  Nuclear medicine and CTE) A) and D)
F) C) and D)

Question 3

Early picture archival and communication systems were first developed ______.

Accepted Answer

A)  In Canada
B)  By the U.S. military
C)  By Albert Jutras
D)  By NASAE) None of the above
F) All of the above

Question 4

The active element in a storage phosphor is ______.

Accepted Answer

A)  Lithium
B)  Glutaraldehyde
C)  Europium
D)  Barium fluorohalideE) A) and B)
F) A) and C)

Question 5

Indirect capture DR converts absorbed x-ray energy into visible light.

Accepted Answer

A) True 
 B)False

Question 6

When switching from a conventional diagnostic radiography room to one that incorporates computed radiography, major equipment changes are to be expected.

Accepted Answer

A) True 
 B)False

Question 7

Who was the first to incorporate digital imaging with the CT scanner?

Accepted Answer

A)  Paul Lauterbor
B)  Godfrey Hounsfield
C)  Sol Nudelman
D)  M. Paul CappE) None of the above
F) B) and C)

Question 8

Another name for exposure latitude is ______.

Accepted Answer

A)  Characteristic response
B)  Linear manner
C)  Subject contrast
D)  Dynamic rangeE) B) and C)
F) A) and D)

Question 9

The first full-scale PACS was first used in 1993 in ______.

Accepted Answer

A)  Boston
B)  Philadelphia
C)  New York
D)  BaltimoreE) A) and B)
F) A) and D)

Question 10

Many PACS reading stations also have image-processing capabilities.

Accepted Answer

A) True 
 B)False

Question 11

Like CR, DR can use the existing diagnostic equipment found in today's imaging departments.

Accepted Answer

A) True 
 B)False

Question 12

The two elements needed to convert light signals into an electrical signal while using indirect capture DR are TFT and ______.

Accepted Answer

A)  Photodiodes
B)  Photoconductors
C)  Phototransistors
D)  PhotostatorsE) A) and C)
F) B) and C)

Question 13

The latest modality to incorporate digital imaging with their image acquisition is ______.

Accepted Answer

A)  MRI
B)  Radiography
C)  Ultrasonography
D)  MammographyE) All of the above
F) A) and C)

Question 14

In which decade was MRI first introduced?

Accepted Answer

A)  1950s
B)  1960s
C)  1970s
D)  1980sE) B) and C)
F) A) and D)

Question 15

Barium fluorohalide phosphor screens have a k-edge at ______ keV.

Accepted Answer

A)  32
B)  35
C)  37
D)  40E) A) and B)
F) A) and C)

Question 16

A Bucky apparatus is required for digital radiography.

Accepted Answer

A) True 
 B)False

Question 17

The x-ray absorber typically used in direct capture DR is a ______.

Accepted Answer

A)  Photodiode
B)  Phototransistor
C)  Photoconductor
D)  PhotoelectronE) A) and C)
F) A) and B)

Question 18

All of the following are components of a PACS except ______.

Accepted Answer

A)  Independent kilovoltage peak and milliampere-second stations
B)  Web access
C)  Multiple interfaces
D)  Reading stationsE) A) and B)
F) All of the above

Question 19

Which of the following best describes the sequence for image acquisition using computed radiography?

Accepted Answer

A)  Phosphor plate, focused laser light scanner, photomultiplier, digital-analog converter, review station
B)  Phosphor plate, focused laser light scanner, photodensitometer, digital-analog converter, review station
C)  Phosphor plate, focused laser light scanner, photodensitometer, analog-digital converter, review station
D)  Phosphor plate, focused laser light scanner, photomultiplier, analog-digital converter, review stationE) All of the above
F) C) and D)

Question 20

With conventional radiography, optical density is primarily controlled by ______.

Accepted Answer

A)  Kilovoltage
B)  Milliamperage
C)  Line voltage
D)  Milliampere-secondsE) A) and D)
F) C) and D)

Exam 1: Introduction to Digital Radiography and Pacs

The x-ray absorber typically used in direct capture DR is a ______.

Correct AnswerverifiedShow Answer

All of the following are components of a PACS except ______.

Correct AnswerverifiedShow Answer

With conventional radiography, optical density is primarily controlled by ______.

Correct AnswerverifiedShow Answer

Indirect capture DR converts absorbed x-ray energy into visible light.

Correct AnswerverifiedShow Answer

When switching from a conventional diagnostic radiography room to one that incorporates computed radiography, major equipment changes are to be expected.

Correct AnswerverifiedShow Answer

Early reconstruction of raw computed tomography data took a few ______ to form a recognizable image.

Correct AnswerverifiedShow Answer

Another name for exposure latitude is ______.

Correct AnswerverifiedShow Answer

Which of the following best describes the sequence for image acquisition using computed radiography?

Correct AnswerverifiedShow Answer

In which decade was MRI first introduced?

Correct AnswerverifiedShow Answer

The two elements needed to convert light signals into an electrical signal while using indirect capture DR are TFT and ______.

Correct AnswerverifiedShow Answer

Early picture archival and communication systems were first developed ______.

Correct AnswerverifiedShow Answer

The active element in a storage phosphor is ______.

Correct AnswerverifiedShow Answer

Barium fluorohalide phosphor screens have a k-edge at ______ keV.

Correct AnswerverifiedShow Answer

Which two modalities could easily be converted to digital imaging properties?

Correct AnswerverifiedShow Answer

The latest modality to incorporate digital imaging with their image acquisition is ______.

Correct AnswerverifiedShow Answer

Many PACS reading stations also have image-processing capabilities.

Correct AnswerverifiedShow Answer

A Bucky apparatus is required for digital radiography.

Correct AnswerverifiedShow Answer

Like CR, DR can use the existing diagnostic equipment found in today's imaging departments.

Correct AnswerverifiedShow Answer

The first full-scale PACS was first used in 1993 in ______.

Correct AnswerverifiedShow Answer

Who was the first to incorporate digital imaging with the CT scanner?

Correct AnswerverifiedShow Answer

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