Radiography Pacs

30 Questions | By Justineobean | Updated: Mar 21, 2022 | Attempts: 570

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The Picture Archiving and Communication System (or PACS) is a medical imaging technology which is used for storing, retrieving, presenting and sharing images produced by X-rays, CT scans, MRIs and ultrasound machines. What do you know about it?

Questions and Answers

1.

Built the mechanical calulator:
- A.
  
  Babbage
- B.
  
  Blaise Pascal
- C.
  
  Hollerith
- D.
  
  Shockley
2.

Whos is the "Father of the Computer" and originated the concept of a programmable computer like "The Difference Engine" ?
- A.
  
  Pascal
- B.
  
  Hollerith
- C.
  
  Charles Babbage
- D.
  
  Germans
3.

Colossus was designed to crack German military codes and was the first fully operational working computer.
- A.
  
  True
- B.
  
  False
4.

Where was the first Electronic computer, ENIAC, developed? (1946)
- A.
  
  U of Penn St
- B.
  
  FHCHS
- C.
  
  Princeton
- D.
  
  Harvard
5.

Who developed the Transistor "Stored Program" ?
- A.
  
  Pascal
- B.
  
  Babbage
- C.
  
  William Shockley
- D.
  
  Hollerith
6.

What was the first universally known, commercially successful, general purpose stored-program electronic digital computer?
- A.
  
  ENIAC
- B.
  
  UNIVAC
- C.
  
  "Stored Program"
- D.
  
  Mechanical Calculator
7.

When was the first CT used?
- A.
  
  1960s
- B.
  
  1970s
- C.
  
  1980s
- D.
  
  1990s
8.

The first Digital Radiography used was in the 1980s by Fuji.
- A.
  
  True
- B.
  
  False
9.

What does Digital Imaging require?
- A.
  
  Hardware & Software applications to process images
- B.
  
  Systematic application of highly complex mathematical formulas called Algorithms
- C.
  
  Film
10.

List examples of Digital Modalities:
- A.
  
  CT
- B.
  
  Sonography
- C.
  
  Nuclear Med
- D.
  
  MRI
- E.
  
  Mammography
- F.
  
  Radiography
- G.
  
  Angiography
11.

Conventional Imaging: Cassettes which consist of (2) Intensifying Screen Speeds
- A.
  
  Detail or Extremity Cassettes (Slow Speed)
- B.
  
  Rare Earth Screen Cassettes (fast Speed)
- C.
  
  TV Monitor
12.

A Detail Intensifying screen:
- A.
  
  Extremities
- B.
  
  Slow Speed (100)
- C.
  
  Excellent Recorded Detail
- D.
  
  Patient Receives More Radiation (Not a Problem)
13.

Recorded Detail is the ability to see small areas of anatomy
- A.
  
  True
- B.
  
  False
14.

Rare Earth Intensifying Screen:
- A.
  
  Thorax, Abdomen, Pelvis, Skull, Facial Bones and Contrast Media exams
- B.
  
  Faster Speed (400)
- C.
  
  Less patient dose
- D.
  
  DECREASED Recorded Detail
15.

Two types of Digital Imaging are Computed Radiography (CR) and Direct Digital Radiography (DDR)
- A.
  
  True
- B.
  
  False
16.

What are the (3) main componenets of CR?
- A.
  
  Imaging Plates
- B.
  
  ADC Processor
- C.
  
  Technologist Workstation
17.

What are the layers of an imaging plate? SAP
- A.
  
  Supportive Layer
- B.
  
  Active Layer of Photostimuable Phosphor
- C.
  
  Protective Layer
18.

What is used after exposure of the x-rays to get the altent image?
- A.
  
  Cassette
- B.
  
  Recorded Detail
- C.
  
  Image Plate Reader
- D.
  
  ADC
19.

PMT (Photomultiplier Tube) converts light into an Electrical signal
- A.
  
  True
- B.
  
  False
20.

What produces the final signal?
- A.
  
  Image Plate Reader
- B.
  
  Amplification, Logarithmic conversion and Analog to digital conversion
- C.
  
  Electrical Signal
- D.
  
  None of the above
21.

Imaging plates are erased by a high intensity light (fluorescent)
- A.
  
  True
- B.
  
  False
22.

What are the advantages of CR?
- A.
  
  Magnify images without loss of Resolution
- B.
  
  Change contrast and brightness
- C.
  
  View images in separate locations
- D.
  
  Images retrievable to teaching areas quickly
- E.
  
  No lost images
- F.
  
  Potential increase in speed of reporting
23.

Where is CR used?
- A.
  
  ICU
- B.
  
  ED
- C.
  
  Trauma Center
- D.
  
  High Volume Clinic
- E.
  
  Portables
24.

When should you put IP's through erasure cycle if not used?
- A.
  
  As soon as exam has been completed
- B.
  
  1 week
- C.
  
  48 hours
- D.
  
  1 year
25.

When should you process IP's to avoid fading of latent image?
- A.
  
  ASAP
- B.
  
  Next day
- C.
  
  Within 1 hour of exposure
- D.
  
  When patient leaves