Flashcards in Exam 1.2: Digital X Rays Deck (14)
What are some advantages of Digital X Rays
Less exposure: Endo
Speed of image acquisition
Ease of viewing
What are some disadvantages of Digital X-rays
Sensor dimension and cords
Lack of standardization
What are the two main digital systems?
Direct (Electronic Sensors)
Semi-Direct (Photostimulable Phosphor Plates)
How do direct sensors capture the image?
Sensor captures radiation and transfers signal directly to computer
How does the Semi direct PSP capture the image
Plates are irradiated producing a latent image in phosphor crystals
Laser scan then transfers image to CPU
What is a drawback when using direct sensors on premolar BWs and PAs
Can't capture D of canine and M of 1st PM
What are the advantages of Direct Sensors over PSPs
Instant image on screen
If sensor is still in place, you can adjust and retake image
What are advantages of PSPs
More sizes available
Lower replacement costs
What is the range of available films
What is the resolution limit for the human eye
What do you sacrifice when you increase resolution?
What is the goal of DICOM
Try to get universal file formats that allow different software to recognize and transfer digital images seamlessly
What does PACS stand for?
Picture Archiving & Communications System