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Author Question: How will application of a larger focal spot size affect a radiographic image? alters contrast ... (Read 50 times)

washai

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on: Jul 17, 2018
How will application of a larger focal spot size affect a radiographic image?
 
 alters contrast
  decreases recorded detail
  increases recorded detail
  alters density

Question 2

The disadvantage of a stationary grid is:
 
 image quality
  grid lines
  inability to focus
  patient dose


sierramartinez

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

decreases recorded detail

Rationale: There are two focal spot sizes to choose from. Small focal spots are most ideal and result in sharper recorded detail, but with increased mAs values, increase heat production will result, therefore a larger focal spot should be selected.

Answer to Question 2

grid lines

Rationale: Stationary grids are lower ratio grids, which affect their efficiency, but grid lines are the biggest drawback. The beam must be adequately aligned to the grid to eliminate the appearance of grid lines on the image.


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washai

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Reply #2 on: Jul 17, 2018
TY


sierramartinez

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Reply #3 on: Jul 17, 2018
Happy to Help


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