CRDR Final Exam Questions & Answers 2024/2025
D. digital - ANSWERSMultiple numeric values divided into an array of small elements capable of being processed is the definition of _____ images.
A. analog
B. medical
C. radiographic
D. digital
C. analog - ANSWERSThe continuous and varying l...
D. digital - ANSWERSMultiple numeric values divided into an array of small elements capable of being
processed is the definition of _____ images.
A. analog
B. medical
C. radiographic
D. digital
C. analog - ANSWERSThe continuous and varying levels of brightness and colors describe _____ images.
A. radiographic
B. medical
C. analog
D. digital
A. sample resolution. - ANSWERSCritical characteristics of a digital image include all of the following
except
A. sample resolution.
B. dose efficiency of the receptor.
C. contrast resolution.
D. noise efficiency.
B. Changing the matrix and the FOV will not change the size of the pixel. - ANSWERSWhich of the
following statements is not true?
A. Matrix size can change without affecting the FOV.
B. Changing the matrix and the FOV will not change the size of the pixel.
C. Changing the matrix or the FOV will change the size of the pixel.
,D. FOV can change without affecting the matrix.
C. picture element. - ANSWERSEach square in a matrix is called a
A. bit.
B. byte.
C. picture element.
D. matrix element.
C. depth. - ANSWERSThe number of bits per pixel is known as bit
A. height.
B. width.
C. depth.
D. pitch.
A. 512. - ANSWERSIf a pixel has a bit depth of 2 to the 9th power, the number of gray tones that pixel can
produce is
A. 512.
B. 256.
C. 1024.
D. 2500.
D. matrix. - ANSWERSThe size of the pixel is determined by the
A. bit depth.
B. bit.
C. byte.
D. matrix.
A. Exposure index refers to the amount of exposure to the patient. - ANSWERSWhich of the following
statements is not true?
,A. Exposure index refers to the amount of exposure to the patient.
B. Exposure index refers to the amount of exposure to the image receptor.
C. Exposure is not uniformly represented across manufacturers.
D. Exposure index standardization is beneficial to the technologist.
A. KIND. - ANSWERSThe measurement for radiation that was incident on the image receptor for a
particular exposure is known as
A. KIND.
B. KTGT.
C. Gy.
D. KSTD.
B. actual exposure (KIND); target exposure (KTGT) - ANSWERSDeviation index is the difference between
_____ and _____ expressed in logarithmic fashion.
A. standard exposure (KSTD); actual exposure (KIND)
B. actual exposure (KIND); target exposure (KTGT)
C. standard exposure (KSTD); target exposure (KTGT)
B. failure of the system to recognize the exposure indicator. - ANSWERSFactors that can adversely affect
the pixel values expressed in the deviation index include all of the following except
A. a prosthesis within the image.
B. failure of the system to recognize the exposure indicator.
C. failure of the system to recognize the collimated border.
D. gonadal shielding within the image.
D. brightness. - ANSWERSHow dark or light a digital image appears on a display monitor is known as
A. density.
B. spatial resolution.
C. contrast resolution.
D. brightness.
, A. contrast resolution. - ANSWERSThe ability of a digital system to display subtle changes in shades of
gray is called
A. contrast resolution.
B. image quality.
C. spatial resolution.
D. dynamic range.
A. spatial resolution. - ANSWERSThe ability of an imaging system to demonstrate small details of an
object is known as
A. spatial resolution.
B. contrast resolution.
C. image quality.
D. dynamic range.
C. dynamic range. - ANSWERSA system's ability to respond to varying levels of exposure, resulting in
more detail, is referred to as
A. spatial resolution.
B. contrast resolution.
C. dynamic range.
D. dynamic resolution.
A. modulation transfer function (MTF). - ANSWERS"The sum of the components in a recording system
cannot be greater than the system as a whole" is a definition of
A. modulation transfer function (MTF).
B. enhanced visualization image processing.
C. digital image contrast and density latitude.
D. principles of contrast enhancement.
B. 100%. - ANSWERSA perfect image processing system would have an MTF of
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