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chapter 25 RHS

QuestionAnswer
With digital imaging, the term is used to describe the pictures that are produced. image
taking digital images require exposure than the films she previously had taken. Exposure times are than that required for conventional radiography. 50% to 90% less
In order to be used for digital imaging, the x-ray unit timer must be adapted to allow exposures in a time frame of of a second. 1/100
Digital sensors contain distinct units of programmable gray values that are sensitive to x-rays called pixels.
How many shades of gray can the human eye distinguish? 32
When you are preparing the sensor to use on your patient, it would be best to cover the sensor with a finger cot and then put on the barrier sleeve. (t or f) t
When you are placing the digital sensor in your patient′s mouth, you would use a different placement technique than you would normally use when placing a film.(t or f) f
The images are cleared from the storage phosphor imaging plates by a clearing step within the scanner.
A primary advantage to digital imaging is the superior gray-scale resolution that results (t or f) t
Digital imaging uses up to 32 shades of gray. (t or f) f
Conventional dental x-ray film has a resolution of lp/mm. 12 to 20
Sensors that cannot be sterilized require complete coverage with disposable plastic sleeves for each patient.
It is questionable whether digital images can be used as evidence in lawsuits, because the original digital image can be enhanced.
Advantages of the use of digital imaging are There is an opportunity for an increase in interactive dialogue between the patient and the radiographer.
A sensor with a fiber optic cable linked to the computer is placed into the mouth of the patient and exposed to x-radiation. This is an example of direct digital imaging.
Created by: user-1899964
 

 



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