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Author Question: When imaging a PA skull, which photocell(s) should be selected? all three center center and one ... (Read 14 times)

Charlie

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on: Jul 17, 2018
When imaging a PA skull, which photocell(s) should be selected?
 
 all three
  center
  center and one outer
  one outer

Question 2

Which of the following affect(s) the amount of scatter reaching the image?
 
 time
  grids
  calipers
  focal spot size


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asware1

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Reply #1 on: Jul 17, 2018
Answer to Question 1

center

Rationale: In order for AEC to work properly, the part must be properly centered and the anatomy should cover the entire photocell to ensure correct determination of exposure termination for optimal density. Improper coverage of AEC with anatomic part could result in under or overexposure.

Answer to Question 2

grids

Rationale: Grids are designed to absorb scatter to reduce the amount of scatter affecting the image.


Charlie

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Reply 2 on: Jul 17, 2018
Excellent

alvinum

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Reply 3 on: Yesterday
Great answer, keep it coming :)

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