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Author Question: Which of the following describes the proper selection of AEC cells? All 3 ionization chambers ... (Read 23 times)

craiczarry

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on: Jul 17, 2018
Which of the following describes the proper selection of AEC cells?
 
 All 3 ionization chambers should be selected for every exam
  Only the center ionization chamber is selected for every exam
  AEC could be used for every part
  The ionization chamber(s) are only selected if covered entirely by the patient's part

Question 2

Which of the following describes why a phantom image may appear on a CR image?
 
 CR cassette and plate is faulty
  CR plate was incorrectly fed into the reader
  CR system has aged and the laser is unable to extract the latent image entirely
  CR plate was not fed into the reader for processing


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TINA

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

The ionization chamber(s) are only selected if covered entirely by the patient's part

Rationale: AEC can only be utilized when imaging the patient with image receptors positioned in the Bucky. Selection of which ionization chamber depends on the size of the part and how well it covers the cell. Different combinations of the ionization chambers can be selected.

Answer to Question 2

CR system has aged and the laser is unable to extract the latent image entirely

Rationale: A phantom image can occur with CR imaging if the laser in the processor is not strong enough to erase the latent image from a previous exam. This is a sign of CR system aging.


craiczarry

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Reply 2 on: Jul 17, 2018
Thanks for the timely response, appreciate it

Missbam101

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Reply 3 on: Yesterday
Wow, this really help

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