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Film Screen Image Acquisition, Processing, and Image Analysis > Radiography > Flashcards

Radiography Flashcards

1
Q

use of ionizing radiation to produce a recorded image

A

radiography

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2
Q

radiography can be described as ___ and ___

A

art and science

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3
Q

radiography requires specific skills in performance

A

art

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4
Q

radiography requires study of natural phenomena

A

science

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5
Q

2 groups of professionals in radiology

A

radiologic technologist and radiologist

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6
Q

board physicians who practice radiology

A

radiologist

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7
Q

image produced using x-radiation and the end product of radiography

A

radiograph

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8
Q

other term of radiograph

A

roentgenogram

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9
Q

characteristics of a radiograph

A
  1. exposure factors are adequate
  2. adequate penetration of the part of interest
  3. sufficient density and contrast
  4. field size
  5. motion is eliminated
  6. anatomic part is properly positioned
  7. proper accessories
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10
Q

body habitus

A

sthenic, asthenic, hypersthenic, hyposthenic

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11
Q

areas in radiology department

A

reception area, dressing room, exposure room, dark room, reading room, sorting room

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12
Q

where patient fills their medical forms, schedule for examination, releasing of results and answering patient inquiries

A

reception or information area

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13
Q

where patient change their dress to a patient gown before examination

A

dressing room

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14
Q

where x-ray examination is being conducted

A

exposure room

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15
Q

where processing cycle of the exposed x-ray film takes place; also known as “processing room”

A

dark room

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16
Q

where diagnostic report or findings are interpreted or rule-out based on the patient request through our radiologists; also known as “interpretation room”

A

reading room

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17
Q

where the radiograph and results are being sorted and kept; also called “file room”

A

sorting room

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18
Q

radiograph is viewed by the aid of?

A

negatoscope or view box

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19
Q

it is where the radiography starts and ends

A

darkroom

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20
Q

a room devoid of white light in which the processing takes place

A

darkroom

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21
Q

meaning of OSHA

A

occupational safety and health agency

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22
Q

hypersensitivity to fumes

A

darkroom disease

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23
Q

exposed films are - time more sensitive to subsequent exposure than an unexposed film as it contains latent image

A

2-8

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24
Q

increase in sensitivity after exposure to white light or ionizing radiation

A

latensification

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25
Q

factors to consider in the darkroom

A
  1. location
  2. size
  3. protects from radiation
  4. ventilation
  5. cleanliness
  6. light-tight entrance
  7. illumination
  8. color of walls
  9. electrical wiring
  10. safelight
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26
Q

factors to consider in the darkroom

A
  1. location
  2. size
  3. protects from radiation
  4. ventilation
  5. cleanliness
  6. light-tight entrance
  7. illumination
  8. color of walls
  9. electrical wiring
  10. safelight
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27
Q

ideal size of a darkroom

A

15 ft. x 14.5 ft or greater

28
Q

wet and dry section should be how many feet away from each other

A

4 ft

29
Q

where is negatoscope located

A

wet section

30
Q

walls in the darkroom and their measurement

A
  1. concrete - greater than 6 in
  2. hollow blocks - filled with cement
  3. wood - with 1.5 mm Pb
31
Q

it is designed to eliminate heat and fumes and must be light-tight

A

ventilation

32
Q

how many times does room changes per hour

A

8-10

33
Q

air movement

A

15-25 ft/min fan

34
Q

storage room temperature

A

10-21°C or 50-70°F

35
Q

old darkroom temperature

A

20°C or 67-83°F

36
Q

new darkroom temperature

A

18-24°C or 65-85°F

37
Q

humidity for storage room

A

40-60%

38
Q

humidity for darkroom

A

30-60%

39
Q

too low humidity could cause?

A

static artifacts

40
Q

device used to measure humidity or moisture

A

psychrometer

41
Q

device used to measure environment moisture

A

hygrometer

42
Q

kinds of doors in the darkroom

A

single door, light-lock door or double door, labyrinth or maze, revolving door

43
Q

simplest type of door and a passbox is required to allow films to be transferred without entering the dark room

A

single door

44
Q

it consists of a small hall with 2 doors and is used only when there is a darkroom personnel exclusive in the darkroom

A

light-lock door or double door

45
Q

easy access; zigzag type and does not use a door but requires a large space

A

labyrinth or maze

46
Q

fast access type as RT can enter and exit at the same time but is not used anymore

A

revolving door

47
Q

this light is to perform different activities such as mixing of chemicals, cleaning tanks, and unloading of film hangers

A

white light illumination

48
Q

purpose of white light illumination

A

maintenance, emergency use, cleaning

49
Q

this is designed to give enough visibility to accomplish all necessary duties in the handling and processing of x-ray film without harmful effect to any unprocessed film

A

safelight illumination

50
Q

safelight illumination is also called

A

safelight system

51
Q

distance of safelight illumination from workbench

A

3 to 4 ft

51
Q

distance of safelight illumination from workbench

A

3 to 4 ft

52
Q

distance of safelight illumination from the feedtray of automatic processor

A

4 ft

53
Q

wattage of safelight at 3 ft distance

A

7.5 watts tungsten bulb

54
Q

wattage of safelight at 4 ft distance

A

15 watts

55
Q

filter that filters out red, orange, yellow and it appears brownish

A

amber filter

56
Q

these are blue-sensitive film

A

monochromatic film

57
Q

it filters only the intensity with less than 550 nm wavelength

A

kodak wratten 6b filter

58
Q

a multi-purpose filter with less than 600-620 nm wavelength

A

kodak gbx-2 filter

59
Q

these are green-sensitive film

A

orthochromatic film

60
Q

color of walls recommended in the darkroom

A

light color (ivory/pastel), enamel/epoxy, matte finish

61
Q

this should be properly installed

A

electrical wiring

62
Q

fixture type safelight; light is distributed directly and is most common in the hospital

A

direct safelight

63
Q

ceiling type safelight; light goes up before being reflected and uses sodium vapor bulb

A

indirect safelight

64
Q

distance of indirect safelight from the workbench should be how many ft

A

6 ft

Film Screen Image Acquisition, Processing, and Image Analysis (6 decks)

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