CRDR PART 1 EXAM QUESTIONS & ANSWERS 2024/2025
It is any image acquisition process that produces an ELECTRONIC IMAGE that can be viewed and manipulated on a computer. - ANSWERSDigital Radiography
is more efficient in time, space, and personnel than screen-film radiography - ANSWERSDigital R...
It is any image acquisition process that produces an ELECTRONIC IMAGE that can be viewed and
manipulated on a computer. - ANSWERSDigital Radiography
is more efficient in time, space, and personnel than screen-film radiography - ANSWERSDigital
Radiography
is a MATRIX OF PICTURE elements or pixels. - ANSWERSA digital image
is a BOX OF CELLS with numeric value arranged in rows and columns. - ANSWERSA matrix
An image is formed by - ANSWERSA matrix of pixels
The size of the matrix is described by - ANSWERSthe number of pixels in the rows and columns
Image size is measured in - ANSWERSMillimeter (mm)
Matrix size is measured in - ANSWERSpixels
in the matrix is capable of representing a wide range of shades of gray from white to black -
ANSWERSEach pixel
Pixel Size = - ANSWERSPixel Size = Field of view (FOV) /matrix size
Measured in x and y direction - ANSWERSMatrix
, This value is because of the process of the Analog to Digital Converter which is called -
ANSWERSquantization
It is the distance between center of one pixel and the center of an adjacent pixel. - ANSWERSPixel Pitch
Determines the pixel density of the digital image - ANSWERSPixel Pitch
(Increase/Decrease)
______ pixel pitch would increase pixel density. - ANSWERSDecreasing
(Increase/Decrease)
_________ the pixel density and decreasing the pixel pitch increases spatial resolution. -
ANSWERSDecreasing
(Increase/Decrease)
________ pixel density and increasing pixel pitch decreases spatial resolution. - ANSWERSIncreasing
The number of bits per pixel that determines the shade of the pixel - ANSWERSBit depth
is expressed as 2 to the power of n - ANSWERSBit depth
Most digital radiography systems uses a bit depth of - ANSWERS8, 10, or 12
This is the NUMBER OF BITS that determines the amount of precision in digitizing the analog signal and
therefore the number of shades of gray that can be displayed in the image. - ANSWERSBit depth
is the smallest of measurement used to quantify computer data. - ANSWERSBit
It contains a single value of 0 or 1. - ANSWERSBit
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