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Author Question: Grids will affect radiographic contrast in which way? diminish contrast produce higher contrast ... (Read 119 times)

aabwk4

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on: Jul 17, 2018
Grids will affect radiographic contrast in which way?
 
 diminish contrast
  produce higher contrast
  no change in contrast
  produce lower contrast

Question 2

What positioning line is adjusted perpendicular on the PA skull?
 
 IPL
  OML
  MCP
  IOML


diana chang

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

produce higher contrast

Rationale: As grid ratio increases, less scatter radiation reaches the image receptor which improves contrast resolution of structures.

Answer to Question 2

OML

Rationale: The chin should be tucked until the OML is perpendicular to the IR. The MSP is also aligned perpendicular to the IR.


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