Bushong CH 20,21,22 test with 100%
complete solutions
A standard pattern made to measure the resolution of digital display systems is
called the _____. - correct answer ✔✔SMPTE pattern
A continuous quality control program for digital display devices should include
_____.
I. acceptance testing of any new devices
II. routine quality control
III. periodic review of the program by a medical physicist
IV. annual and post-repair performance evaluations - correct answer ✔✔All of
these
I,II,III,IV
Lossy compression reduces data files _____. - correct answer ✔✔100:1
Filtration is measured with _____ measurements. - correct answer ✔✔half value
layer
A graph of the frequency of occurrence versus digital value intervals is called a(n)
_____. - correct answer ✔✔Histogram
, A QC program should include _____, routine performance monitoring, and
maintenance. - correct answer ✔✔acceptance testing
Creating distinctly collimated margins on all 4 sides of a DR image is important in
preventing _____ errors. - correct answer ✔✔histogram analysis
The three classifications of digital imaging artifacts are _____. - correct answer
✔✔image receptor, software, and object
The standard for Digital Imaging and Communication was developed by a
committee of the _____. - correct answer ✔✔ACR and NEMA
The consistent appearance of DICOM images on any compatible digital display
device is achieved through _____. - correct answer ✔✔perceptual linearization
The x-ray field must center accurately to within ____% of SID. - correct answer
✔✔1
Most quality control testing on radiographic equipment is done _____. - correct
answer ✔✔annually
During preprocessing the digital output of the image receptor may need to be
manipulated to correct for _____. - correct answer ✔✔dead pixels
Each anatomical part has an image histogram with a(n) _____ shape. - correct
answer ✔✔characteristic
complete solutions
A standard pattern made to measure the resolution of digital display systems is
called the _____. - correct answer ✔✔SMPTE pattern
A continuous quality control program for digital display devices should include
_____.
I. acceptance testing of any new devices
II. routine quality control
III. periodic review of the program by a medical physicist
IV. annual and post-repair performance evaluations - correct answer ✔✔All of
these
I,II,III,IV
Lossy compression reduces data files _____. - correct answer ✔✔100:1
Filtration is measured with _____ measurements. - correct answer ✔✔half value
layer
A graph of the frequency of occurrence versus digital value intervals is called a(n)
_____. - correct answer ✔✔Histogram
, A QC program should include _____, routine performance monitoring, and
maintenance. - correct answer ✔✔acceptance testing
Creating distinctly collimated margins on all 4 sides of a DR image is important in
preventing _____ errors. - correct answer ✔✔histogram analysis
The three classifications of digital imaging artifacts are _____. - correct answer
✔✔image receptor, software, and object
The standard for Digital Imaging and Communication was developed by a
committee of the _____. - correct answer ✔✔ACR and NEMA
The consistent appearance of DICOM images on any compatible digital display
device is achieved through _____. - correct answer ✔✔perceptual linearization
The x-ray field must center accurately to within ____% of SID. - correct answer
✔✔1
Most quality control testing on radiographic equipment is done _____. - correct
answer ✔✔annually
During preprocessing the digital output of the image receptor may need to be
manipulated to correct for _____. - correct answer ✔✔dead pixels
Each anatomical part has an image histogram with a(n) _____ shape. - correct
answer ✔✔characteristic
