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RAD107 EXAM1

QuestionAnswer
One advantage of DR over scanned projection radiography is Shorter exposure times
In digital radiography, the brightness of the image is determined by Pixel Values
Scanned projection radiography was developed as a complement to computed tomography
The ability of the CCD to detect and respond to very low levels of visible light is known as sensitivity
The ability of the CCD to respond to a wide range of light intensity, from very dim to very bright is known as dynamic range
Digital radiography images should be repeated if there is a problem with positioning
DQE is Detective quantum efficiency
With digital imaging, patient dose can be reduced by using higher ______ technique KVP
________ is the number of gray shades that an imaging system can reproduce. Dynamic range
Digital radiography is best described by which three elements? collection, capture, coupling
What are the principal advantages of a charge-coupled device? Sensitivity, response time, dynamic range
Conventional x-ray tubes and image receptors are used with ________ radiography systems. Computed Radiography
In digital radiography, spatial resolution is improved with increased _____________. Matrix size
In CR, the capture element is the _____________. PSP
PSP is ... Photo Stimulable phospor
TRUE/FALSE The CCD has high sensitivity to x-ray exposure and a very narrow dynamic range. False
Created by: rbats
 

 



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