crdr 2

Question 1

Any imaging acquisition process that produces an electronic image that can be
viewed and manipulated on a computer.

Answer 1

digital imaging

Question 2

one of the first use of digital imaging was the introduction of?

Answer 2

CT scanner

Question 3

CT scanner was first introduced by?

Answer 3

Godfrey Hounsfield (1970)

Question 4

second major milestone in medical imaging

Answer 4

CT scan

Question 5

earliest unit took several hours to acquire a single slice of information and few days to reconstruct raw data into recognizable image

Answer 5

CT scan

Question 6

several companies began pioneering efforts in the mid – to late 1970s after the publication of an
article by Paul Lauterbur in 1973

Answer 6

MRI

Question 7

introduced commercially for health care use in the early 1980s

Answer 7

MRI

Question 8

ADC

Answer 8

Analog to Digital Converter

Question 9

ADCs made it possible to capture the image digitally

Answer 9

Fluoroscopy

Question 10

allowed for the display of the dynamic image on TV

Answer 10

Plumbicon or Vidicon TV tubes

Question 11

easy converts to the digital world because the images created were simply frame-
grabbed

Answer 11

Ultrasound and Nuclear Medicine

Question 12

he introduced the concept of moving images digitally during his
experimentation with teleradiology in the 1950s.

Answer 12

Albert Judas (Canada)

Question 13

Early PACSs were developed by the ______ in an effort to move images
among Veterans Administration (VA) hospitals and to send battlefield images to
established hospitals.

Answer 13

US military

Question 14

PSP

Answer 14

Photostimulable Phosphor

Question 15

PSP is previously known as

Answer 15

computed radiography

Question 16

digital acquisition modality
that uses storage phosphor plates to produce projection images.

Answer 16

PSP

Question 17

PSP imaging was first introduced commercially in the US in 1983 by?

Answer 17

Fuji Medical Systems of Japan

Question 18

FPD

Answer 18

flat panel detector

Question 19

use an x-ray absorber material coupled to a thin-film transistor
(TFT), complementary metal oxide semiconductor (CMOS), or charge-coupled device
(CCD) to form an image.

Answer 19

FPD

Question 20

2 categories of FPD

Answer 20

indirect capture
direct capture

Question 21

several early digital pioneers developed the first clinical
application for digital images (DSA) at the?

Answer 21

University of Arizona in Tucson

Question 22

They developed the precursor to the current full-field CCD units.

Answer 22

1. Dr. M. Paul Capp
2. Dr. Sol Nudelman
3. Hans Roehrig
4. Dan Fisher
5. Meryll Frost

Question 23

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Answer 23

BASAHIN MO SA MODULE LINTIK KA

Question 24

A networked group of computers, servers, and archives that can be used to manage digital images.

Answer 24

PACS (PICTURE ARCHIVING AND COMMUNICATION SYSTEMS)

Question 25

Serves as the file room, reading room, duplicator, and courier.

Answer 25

PACS

Question 26

image format in PACS

Answer 26

DICOM

Question 27

first full-scale PACS was installed in 1993

Answer 27

VA Medical Center (Baltimore, US)

Question 28

Parts of PACS

Answer 28

a. Reading stations b. Physician review stations c. Web access d. Technologist quality control stations e. Administrative stations f. Archive systems g. Other interfaces to various hospital & radiology systems

Question 29

medium that captures, displays, and archives the image

Answer 29

film

Question 30

Phosphor crystals embedded in the IS

Answer 30

film/screen imaging

Question 30

Images are recorded in a logarithmic fashion

Answer 30

Film/Screen system (technical choice)

Question 31

Images are recorded in linear fashion

Answer 31

Digital system (technical choice)

Question 32

used to increase the effect of x-ray photons (film/screen system)

Answer 32

IS

Question 33

slow screens (film/screen system)

Answer 33

able to resolve more detail

Question 34

faster screens (film/screen system)

Answer 34

require less exposure technique, thereby reducing patient dose

Question 35

All PSP and FPD systems can function well with higher kVp values; therefore a lower mAs can be used to produce an adequate image.

Answer 35

digital system

Question 35

Many of the first PSP systems had a relative speed of 200.

Answer 35

digital system

Question 36

Identification of patient consisted of recording information on a card and then exposing an area of film after exposure or using lead letters & numbers and placing them on the film for imaging during exposure.

Answer 36

film/screen systems (patient demographics)

Question 37

Patient identification is manually entered or linked via barcode label scans before the start of the examination and before the processing phase.

Answer 37

digital system (patient demographics)

Question 38

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Answer 38

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