Rad II- COMPLETE FINAL REVIEW (All tests/quizzes) Verified Solution 2023/2024
Course
Rad II
Institution
Rad II
Rad II- COMPLETE FINAL REVIEW (All tests/quizzes) Verified Solution 2023/2024
Gadolinium Oxysulfide
A common scintillating phosphor used with Indirect DR digital imaging is
Detection Quantum Efficiency
The efficiency of a digital system in converting remnant radiation into useful image signal...
rad ii complete final review all testsquizzes verified solution 20232024 gadolinium oxysulfide a common scintillating phosphor used with indirect dr digital imaging is detection quantum efficien
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Rad II- COMPLETE FINAL REVIEW (All
tests/quizzes) Verified Solution
2023/2024
Gadolinium Oxysulfide
A common scintillating phosphor used with Indirect DR digital imaging is
Detection Quantum Efficiency
The efficiency of a digital system in converting remnant radiation into useful image
signals is known as
Detector Elements (DELS)
Individual Thin Film Transistor (TFT) elements are known as
LGM
The exposure indicator of Agfa brand CR imaging products is
DAC-Digital-to-Analog Converter
The monitor on which we view the digital image is an example of
Fading
The weakening of the stored latent image within a CR imaging plate is known as
F centers
In a CR system, stored electron energy is trapped in the
Increases
As image contrast decreases, exposure latitude
Bit depth
The number of grays that an individual pixel is capable of demonstrating is known as
Light gate
In a CR system, visible light emitted by the imaging plate is collected and channeled by
the
Direct Conversion DR
The digital imaging system that uses amorphous Selenium (a-Se) for imaging formation
is
1 mR
With CR digital imaging a "perfect" exposure indicator measures radiation to the IP at a
dose of
Signal-to-noise ratio
The relationship of useful, anatomical image information to worthless electronic
information is known as
Photostimulable Phosphor Plate
Within a CR cassette is found
Europium Barium Fluorohalide
The phosphor material found within a CR imaging plate is
Direct Conversion DR
The imaging system that does NOT use visible light for image formation
Digitizing
The process of translating an analog image to a binary code is known as
,Automatic Rescaling
The process by which a digital imaging system displays a visible image despite
technique error is known as
Indirect Conversion DR
The imaging system that uses a TFT array for image formation is
Exposure Indicator
The amount of radiation received by the IR imaging plate is measured as the
Pixel
The smallest component of a digital x-ray image is known as
Pixel depth, dynamic range, bit range
All of the following terms are synonymous with digital image contrast ability
Helium-Neon
The lazer found in a CR imaging processor is
Capacitors
Electrical components that temporarily store a charge are known as
Photostimulable phosphor layer
In a CR system, the latent image is held with in the imaging plate's
Voxels
The 3-dimensional pieces of digital information obtained by CT scan are known as
Decrease contrast
Widening the window of the digital image results in
Digital
Information expressed in variable numeric quantities is known as
1/2 pixel pitch
In a correctly sampled digital image, Nyquist frequency is equal to
Photomultiplayer tube- PMT
In a CR processor, visible light energy is converted into an equivalent value of electrical
energy by the
Pixel pitch
Measuring the distance from the center of a pixel to the center of an adjacent pixel is
known as
Pixel density
The number of pixels per given area is known as
Matrix
The crossed rows and columns of a digital image are known as the
Annotation
The adding of text information to a digital image is known as
Algorithm
The mathematical formula used to process a digital image is known as the
Fill factor
The percentage of an individual del's surface area that is capable of gathering electrons
is known as
Direct Conversion DR
The digital imaging system that does NOT use scintillating phosphors for image
formation is
"s" number
, The exposure indicator of Fuji brand CR imaging products is
2.2 LGM
The perfect exposure indicator value with Agfa CR is
DICOM
The international standard that allows digital imaging systems to "talk to each other" is
known as
CT numbers
Houndsfield Units are also commonly known as
Density/Brightness
Window level is synonymous with the image characteristic of
Accession number
The unique number assigned to an individual imaging study is known as the
Histogram
The graphic representation of digital image densities and frequency of density
occurrence is known as
Analog
Information expressed in variable physical quantity is known as
lp/mm
Spatial resolution for digital imaging is measured in
Look-up table (LUT)
With digital imaging, predetermined luminance values that are anatomy dependent are
stored within the
Windowing
Manually adjusting the shades of gray to be presented to the viewing monitor is known
as
Scintillation
A phosphor crystal emitting visible light when stimulated by x-ray is known as
Contrast Resolution
The number of grays that a pixel is capable of demonstrating is known as
Photoconductor
In digital imaging, Amorphous Selenium (a-Se) functions as a
Contrast resolution
The greatest advantage of digital imaging compared to film/screen imaging is
Exceptions handler
An improperly processed digital imaging study will wind up "lost" within the
Increase contrast
Narrowing the window of a digital image results in
Contrast
Window width is synonymous with the image characteristic of
CR
Forms a latent image
Indirect DR
Can use Amorphous Silicon as a scintillator
Direct DR
Does not use visible light as part of the image production process
Indirect DR
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