ASRT Module 2 Quiz - Digital Img Production
In a flat-panel digital imaging system, electrons are converted into digital values by an ______
ADC
Which of the following is an EI used in flat-panel radiography A. EXI B. 'S' number C. DQE D. lglvl
B. 'S' number
All of the following are examples of EI's except: A. 'S' numbers B. DQE C. EXI D. REX
B.DQE
The addition of metal prothesis into the image data set affects: 1. image brightness 2. image contrast 3. the EI A. 1 & 2 B. 1 & 3 C. 2 & 3 D. 1, 2 & 3
D. 1, 2 & 3
PSP plates are erased after processing by exposing the plate to _______ - ________ _______
high-intensity light
A graphical representation of exposure values extracted from an image receptor is a _________
histogram
When using a flat-panel detector, the technologist does not touch the _______ _______
image detector
If a PSP plate is processed using the wrong anatomical menu, what could happen? The EI number may display _________
improperly
The acronym EI is a vendor - neutral term that stands for exposure ________
indicator
A type 2 histogram would be used when imaging the ____ ____ ____ _____
torso, spine, skull, pelvis
Scanning the bar code on a PSP plate is very important because it links the image data with the correct _____
patient
A DAP meter measures the patient dose as the x-rays enter the _________ ________
patient's skin
In a PSP plate reader, the light guide collects the light and directs it into a _______ _______
photomultiplier tube
What happens when a PSP plate reader is unable to identify the collimated borders of the image? The image quality is _______
poor
Neural analysis compares exposure data from the receptor with values in a _______ ______ _____
predetermined data set
Type 3 priori analysis is unique because it takes into account that patient characteristic?
prosthetic
Optimal EI ranges for each anatomical part should be set by the __________
radiologist
The ______ ______ device allows for an increased scanning precision compared with a mechanical arm
rotating mirror
A charge-coupled device and a complimentary metal oxide semiconductor need a _______ to change x-rays into light
scintillator
