Advanced Rad - Exam 2 Computer Science -Computer Graphics Q&A Latest Update
What is one of the two definitions for the range of exposure intensities that an image receptor can
respond to and use to acquire image data? - ANS-exposure latitude; dynamic range
By utilizing higher kVp's we are able to lower mAs, lower patient dose and still obtain quality images -
ANS-true
The larger the fill factor, the detector area (as a percentage of the whole square), the more efficient the
DEL will be. - ANS-true
What is the main disadvantage of using the 3-step system over the 2 AND what affect does it have on
image production? - ANS-extra step of x-rays converting to light can produce a loss of resolution in the
image.
What year was the first time CR and storage phosphors were developed? - ANS-1980
Instead of bar code scanning, the patient information is selected from where? - ANS-Worklist generated
by HIS/RIS
DR detectors respond in a - ANS-linear manner
A single detector is sensitive to a large range of exposures - ANS-true
What is a DEL? (give the specific definition of what the initials stand for)
What are they used for within DR? - ANS-DEL = detector elements
A systematic arrangement of DELS make up the array of a flat panel. (thousands to millions of them -
1/10 mm in size) They are fastened to a thin glass backing and contain an x-ray absorption material
which measures the response of the photoconductor or scintillator to x-ray absorption in order to
produce an image.