Test Bank For Quality Management in the Imaging Sciences
5th Edition By Jeffrey Papp 9780323261999 Chapter 1-15
Complete Guide .
art of image critique - ANSWER: the application of scientific knowledge to an analysis of the image
List the 3 steps to the image analysis method. - ANSWER: 1.) Classification of the image
2.) Determination of the cause of the problem
3.) Recommendation of corrective action
List the 3 types of problems that determine the cause of an unacceptable image. - ANSWER: 1.)
Technical factor problems
2.) Procedural problems
3.) Equipment malfunction
What do photographic problems concern? What do geometric problems concern? - ANSWER:
photographic: density and contrast
geometric: recorded detail or distortion
Clinical knowledge is gained by critiquing acceptable but suboptimal images, analyzing repeated
images, and recording successful results. (True/False) - ANSWER: true
Acceptable limits are usually defined as preferences and demands at each ____. - ANSWER: unit
What are the 4 primary exposure factors? - ANSWER: kVp, milliamperage, time, and SID
The four principal types of charts are based on what? - ANSWER: variable kilovoltage, fixed
kilovoltage, high kilovoltage, and automatic exposure
Digital images are controlled by manipulating window ____. - ANSWER: level
What is the number range for the numerical readout on densitometers? - ANSWER: 0.0-4.0
The range of ___-___ OD is considered useful, visible, and of diagnostic value. - ANSWER: 0.25-2.5
When using a logarithmic scale with a base of 10, an increment of ___ represents a doubling of
exposure. - ANSWER: 0.3
____ is used as the primary controller of image receptor exposure and film density. - ANSWER: mAs
reciprocity law - ANSWER: the OD will be the same if the mAs value is constant
15% rule - ANSWER: a 15% increase in kVp causes a doubling of exposure to the IR; a 15% decrease in
kVp causes a halving of exposure to the IR
Beam ____, collimating, or ____ the primary beam field size reduces the total number of photons
available thus reducing the amount of scatter radiation and therefor reducing the overall image
receptor and film density. - ANSWER: restriction; reducing
direct square law - ANSWER: mAs(1)/mAs(2) = SID(1) ^2/SID(2) ^2
The ___ ___ technique is an alternative to the use of a grid. - ANSWER: air gap
The condition of the ____ ____ solutions can dramatically alter film density. - ANSWER: film
processing
5th Edition By Jeffrey Papp 9780323261999 Chapter 1-15
Complete Guide .
art of image critique - ANSWER: the application of scientific knowledge to an analysis of the image
List the 3 steps to the image analysis method. - ANSWER: 1.) Classification of the image
2.) Determination of the cause of the problem
3.) Recommendation of corrective action
List the 3 types of problems that determine the cause of an unacceptable image. - ANSWER: 1.)
Technical factor problems
2.) Procedural problems
3.) Equipment malfunction
What do photographic problems concern? What do geometric problems concern? - ANSWER:
photographic: density and contrast
geometric: recorded detail or distortion
Clinical knowledge is gained by critiquing acceptable but suboptimal images, analyzing repeated
images, and recording successful results. (True/False) - ANSWER: true
Acceptable limits are usually defined as preferences and demands at each ____. - ANSWER: unit
What are the 4 primary exposure factors? - ANSWER: kVp, milliamperage, time, and SID
The four principal types of charts are based on what? - ANSWER: variable kilovoltage, fixed
kilovoltage, high kilovoltage, and automatic exposure
Digital images are controlled by manipulating window ____. - ANSWER: level
What is the number range for the numerical readout on densitometers? - ANSWER: 0.0-4.0
The range of ___-___ OD is considered useful, visible, and of diagnostic value. - ANSWER: 0.25-2.5
When using a logarithmic scale with a base of 10, an increment of ___ represents a doubling of
exposure. - ANSWER: 0.3
____ is used as the primary controller of image receptor exposure and film density. - ANSWER: mAs
reciprocity law - ANSWER: the OD will be the same if the mAs value is constant
15% rule - ANSWER: a 15% increase in kVp causes a doubling of exposure to the IR; a 15% decrease in
kVp causes a halving of exposure to the IR
Beam ____, collimating, or ____ the primary beam field size reduces the total number of photons
available thus reducing the amount of scatter radiation and therefor reducing the overall image
receptor and film density. - ANSWER: restriction; reducing
direct square law - ANSWER: mAs(1)/mAs(2) = SID(1) ^2/SID(2) ^2
The ___ ___ technique is an alternative to the use of a grid. - ANSWER: air gap
The condition of the ____ ____ solutions can dramatically alter film density. - ANSWER: film
processing
