Ch. 39 Flashcards
(30 cards)
_____________ is an extra oral film that is placed outside the mouth and takes a profile view of the head
Cephalometric
True or False: you can autoclave phosphor storage plates (PSP)
False
What are examples of extra oral films
Cepahlometric, panoramic, and CT
What size film or sensor is used on a 3 year old child?
Size 0
What are the beam alignment devices, used to position and hold the dental receptor in the patients mouth?
Rinn XCP-DS instruments
What type of digital imgaing uses a sensor with a cord attached to the computer
Direct Digital Radiography
What are electronics signals captured by sensors and displayed on a computer called?
Digital image
A charge coupled (CCD) device in direct digital imaging sensor is made of _________
Silicon
Which type of sensor should not be exposed to light before scanning and is made of phosphor?
PSP - phosphor storage plate
True or False: Phosphor storage plate (PSP) can be autoclaved .
False
Indirect digital imaging involves the use of an :
Phosphor storage plate
The ____________ is a direct digital imaging sensors that is made of silicon.
Charge-coupled device (CCD)
The ________ image on the phosphor storage plate should not be exposed to bright light or warmth because this will release the energy before the scanner reads it.
Latent
Positioning instruments in digital radiology :
Assist in placement and protect the patients fingers from being exposed
Digitizing film-based radiographic images will _____ duplicate in the same detail as the original film.
Not
Why do digital radiographs require less radiation than traditional film-based radiography?
Sensors are more sensitive to x-ray energy
What size of film is normally used on adults?
Size 2
___________ processing requires more equipment than automatic film processing
Manual
The PSP imaging system should not be exposed to light before scanning, the latent image can stay on the plate for hours, and they are made of ___________.
Phosphor
Exposure times for digital radiography are ________ less than those required for conventional film
70 - 80 %
3 advantages of digital radiography are:
No chemicals
No processing errors
Remote consultation capability
Digital imaging software capabilities include adjusting contrast, ____________ , and sharpness
Brightness
The primary difference of positioning instruments for digital film vs conventional film is :
Different size and shape of x-ray holder
A disadvantage of digital radiography is :
The time it takes to convert previous records to digital
