Advanced Rad - Exam 2 Computer Science -Computer Graphics 2024 Q&A
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.
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.
