Flashcards in CT Quiz 2/5/15 Deck (10)
Loading flashcards...
0
The opening of gantry
Aperture
1
◾️where pt lies and is moved within the gantry
◾️aka couch
◾️must be accurate and reliable
◾️determines the extent a patient can be scanned without positioning
◾️Moves within gantry by incrementation, feed, step, or index
Table
2
Ring shaped structure containing many components
Gantry
3
◾️used to restrict the beam to a specific area of interest only
◾️effects both pt dose and image quality
Collimator Assembly
4
Responsible for computing at least thousands of equations so an image can be created
Computer
5
◾️measures the photons that pass through the patient and strike the detectors
◾️converts analog signal from the detector into a digital signal
Data Acquisition System
6
Where the technologist programs the whole exam
Operators (system) Console
7
Collects information regarding the degree to which each anatomical structure attenuated the beam
Detector
8
◾️reduce radiation dose to Pt and help minimize image artifacts
◾️improves image quality
◾️Reduces range of X-ray that reach the patient by removing the long wave length X-rays
Filters
9