Detail And Distortion Review Game Question Preview (ID: 35943)


Review Of The Material For The Detail And Distortion Test. TEACHERS: click here for quick copy question ID numbers.

What axis represents the depth of the information in the digital image?
a) Z axis
b) X axis
c) Y axis
d) None of the answers is correct

If an object is 15 inches, what is the image size with a magnification factor of 1.5?
a) 15 inches
b) 13.5 inches
c) 30 inches
d) 22.5 inches

The photographic factors that affect the visibility of the image are:
a) Contrast and density/IR exposure
b) Detail and contrast
c) Detail and density/IR exposure
d) Detail and distortion

If the OID is increased, recorded detail:
a) Increases
b) Decreases
c) Stays the same
d) No relationship between OID and detail

The major controlling factor for detail is:
a) SID
b) OID
c) Focal spot
d) Tube angulation

Misrepresentation of a true size of an object is the definition of:
a) Recorded detail
b) Elongation
c) Distortion
d) Magnification

Which of the following will produce the least amount of size distortion?
a) 40 inch SID, 3 inch OID
b) 40 inch SID, 5 inch OID
c) 72 inch SID, 3 inch OID
d) 72 inch SID, 5 inch OID

If the SID is 40 inches, and the OID is 2 inches. What is the magnification factor?
a) 20
b) 1.05
c) 0.95
d) Unable to determine with information given

For the least amount of distortion, how should the part and IR be aligned?
a) Parallel
b) Perpendicular
c) 45 degree angle
d) None of the answers is correct

What is the unsharp borders of a structure on the radiographic image termed:
a) Umbra
b) Penumbra
c) Leakage radiation
d) Geometric sharpness

What can be done to reduce magnification when an OID is present?
a) Reduce the SID
b) Reduce the SOD
c) Increase the angle of the CR
d) Increase the SID

Which of the following has no effect on recorded detail?
a) SID
b) OID
c) Focal spot
d) Anode heel effect

Which of the following would describe when an image would show foreshortening?
a) CR angled to IR
b) IR angled to CR
c) Part angled and CR and IR perpendicular
d) None of the answers is correct

When referring to shape distortion, what does foreshortening mean?
a) An image is lengthened or extended
b) An image is shorter than it is in reality
c) An image is at least twice its normal size
d) An image can take any kind of new shape

Which of the following is a way to measure spatial resolution (detail)?
a) Line spread function
b) Modulation transfer function
c) Point spread function
d) All of the answers are ways to measure spatial resolution

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