Quality management| Verified Answers 100%
What are the 3 steps of the image analysis method? - ✔✔1. Classification of the
image
2. The termination of the cause of the problem
3. Recommendation of corrective action
Which step in the image analysis method starts the diagnostic problem-solving
process? - ✔✔Step 2: Determination of the cause of the problem
What are the 3 major categories of diagnostic problems? - ✔✔Technical factor
problems, procedural problems, and equipment malfunction
What are the 2 types of technical factor problems? - ✔✔Photographic and
geometric
What are photographic problems? - ✔✔Problems that concern maintaining
sufficient density and contrast to make the detail of the image visible
What are geometric problems? - ✔✔Problems with detail that are further
classified as issues with recorded detail or distortion
What do procedural factor problems involve? - ✔✔Patient positioning and patient
preparation for the x-ray exam
Problems can be kept to a minimum through an effective ______ - ✔✔Quality
control program
How is clinical knowledge gained? - ✔✔by critiquing acceptable but suboptimal
images, analyzing repeated images, and recording successful results
What are corrective action adjustments based on? - ✔✔Knowledge and clinical
experience
_____ acceptance limits may produce a high repeat rate while _____ acceptance
limits may cause radiographers to produce more images near perfect center -
✔✔Wide acceptance limits
Narrow acceptance limits
The prime exposure factors are - ✔✔kVp, mA, exposure time, and source-to-
image receptor distance (SID)
1
, What are the 4 principal types of charts based on? - ✔✔Variable kilovoltage,
fixed kilovoltage, high kilovoltage, automatic exposure
Variable kVp charts use a fixed mAs value and a KVP that varies according to
the - ✔✔Thickness of the anatomical part being examined
Which type of charts are used the most? - ✔✔Fixed kVp charts
Which type of chart does this describe?
"The kVp selected is the optimum required for penetration of the anatomical
part." - ✔✔Fixed kVp
Optical density is measured/analyzed by a - ✔✔Densitometer
Density Log Exposure Curve - ✔✔Demonstrates densities across an image by
graphing the total range of optical density and the logarithmic scale
In the D Log E Curve, why is optical density measured from 0.0 to 4.0? -
✔✔Because there is a wide range of exposures and the densities are
compressed into a logarithmic scale
What is used as the primary controller of image receptor exposure and film
density? - ✔✔mAs
Because mAs is the primary controller of x-ray quantity, the number of x-ray
photons leaving the tube
What does the reciprocity law state about optical density and mAs? - ✔✔Optical
density will be the same if the mAs value is constant
15% Rule - ✔✔A change in kVp alters the intensity of the beam when the mAs
and other factors remain the same within the straight-line portion of the density
logarithmic relative exposure range
The image receptor exposure is always greater at the cathode end according to
what? - ✔✔Anode Heel Effect
What do beam restriction, collimating, and reducing the primary beam field size
all have in common? - ✔✔Reduce the total number of photons available, thus
reducing the amount of scatter radiation, and therefore reducing the overall
image receptor and film density
As the primary beam field size is increased, what happens to scatter radiation? -
✔✔Scatter radiation also increases, which increases optical density
2
What are the 3 steps of the image analysis method? - ✔✔1. Classification of the
image
2. The termination of the cause of the problem
3. Recommendation of corrective action
Which step in the image analysis method starts the diagnostic problem-solving
process? - ✔✔Step 2: Determination of the cause of the problem
What are the 3 major categories of diagnostic problems? - ✔✔Technical factor
problems, procedural problems, and equipment malfunction
What are the 2 types of technical factor problems? - ✔✔Photographic and
geometric
What are photographic problems? - ✔✔Problems that concern maintaining
sufficient density and contrast to make the detail of the image visible
What are geometric problems? - ✔✔Problems with detail that are further
classified as issues with recorded detail or distortion
What do procedural factor problems involve? - ✔✔Patient positioning and patient
preparation for the x-ray exam
Problems can be kept to a minimum through an effective ______ - ✔✔Quality
control program
How is clinical knowledge gained? - ✔✔by critiquing acceptable but suboptimal
images, analyzing repeated images, and recording successful results
What are corrective action adjustments based on? - ✔✔Knowledge and clinical
experience
_____ acceptance limits may produce a high repeat rate while _____ acceptance
limits may cause radiographers to produce more images near perfect center -
✔✔Wide acceptance limits
Narrow acceptance limits
The prime exposure factors are - ✔✔kVp, mA, exposure time, and source-to-
image receptor distance (SID)
1
, What are the 4 principal types of charts based on? - ✔✔Variable kilovoltage,
fixed kilovoltage, high kilovoltage, automatic exposure
Variable kVp charts use a fixed mAs value and a KVP that varies according to
the - ✔✔Thickness of the anatomical part being examined
Which type of charts are used the most? - ✔✔Fixed kVp charts
Which type of chart does this describe?
"The kVp selected is the optimum required for penetration of the anatomical
part." - ✔✔Fixed kVp
Optical density is measured/analyzed by a - ✔✔Densitometer
Density Log Exposure Curve - ✔✔Demonstrates densities across an image by
graphing the total range of optical density and the logarithmic scale
In the D Log E Curve, why is optical density measured from 0.0 to 4.0? -
✔✔Because there is a wide range of exposures and the densities are
compressed into a logarithmic scale
What is used as the primary controller of image receptor exposure and film
density? - ✔✔mAs
Because mAs is the primary controller of x-ray quantity, the number of x-ray
photons leaving the tube
What does the reciprocity law state about optical density and mAs? - ✔✔Optical
density will be the same if the mAs value is constant
15% Rule - ✔✔A change in kVp alters the intensity of the beam when the mAs
and other factors remain the same within the straight-line portion of the density
logarithmic relative exposure range
The image receptor exposure is always greater at the cathode end according to
what? - ✔✔Anode Heel Effect
What do beam restriction, collimating, and reducing the primary beam field size
all have in common? - ✔✔Reduce the total number of photons available, thus
reducing the amount of scatter radiation, and therefore reducing the overall
image receptor and film density
As the primary beam field size is increased, what happens to scatter radiation? -
✔✔Scatter radiation also increases, which increases optical density
2
