C3: Radiograph Processing Flashcards
Artifact
Abnormality on radiographs due to human or equipment error
Automatic Processor
Used to develop film after it is exposed
Bucky Tray
Where the cassette is placed
Caliber
- Tool used to measure thickness of what is being radiographed
- determines strength of beam and setting of machine
- 2 views=2 measurements
Collimator
- controls where x-ray beam hits
- collimate as small as possible to area of interest
Digital Radiograph
Can adjust on computer screen and store on external hard drive
Dip Tanks
Used for manually developing films by dipping them in chemicals
Dosimeter
Badge that measure the amount of radiation someone has been exposed to
Radiograph Label
Lead markers in collimated area to determine positioning
Shielding Devices
Gown, thyroid protector, gloves
How should a patient be positioned?
- area of interest is as close to x-ray as possible
- put cross-hairs directly on area of interest
3 types of radiograph labelling
- lead markers
- photo-imprinting (lead blocker that prevents exposure in corner of film)
- lead-impregnated tape (use ballpoint pen to release lead)
2 Methods of Radiograph Processing
- Traditional Dark Room: use metal frames to hold exposed film, first placed in developer then fixer chemicals
- Automatic Processor: preform process with machine, films fed in much like photocopier
3 Advantages of Digital Radiographs
- eliminates need for developing chemicals and dark room
- image is more detailed and can be enhanced
- reduces need for repeat images, can adjust electronically