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Author Question: In review of the image, what might the technologist consider to acquire a, L5-S1 spot? center with ... (Read 17 times)

kshipps

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on: Jul 17, 2018
In review of the image, what might the technologist consider to acquire a, L5-S1 spot?
 
 center with a perpendicular beam
  provide additional support under the waist
  center with a 5-7 degree cephalic tube angle
  center with a 5-7 degree caudal tube angle

Question 2

Which projection/position of the shoulder will demonstrate the greater tubercle in profile laterally?
 
 AP internal rotation
  AP neutral rotation
  AP external rotation
  AP oblique


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underwood14

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

center with a perpendicular beam

Rationale: If the lateral lumbar spine image reveals the L5-S1 joint space to be open, then a perpendicular central ray should be directed for the spot image. This image reveals that the patient's spine is parallel to the image receptor; no tube angle is necessary.

Answer to Question 2

AP external rotation

Rationale: Nontrauma imaging of the shoulder routinely uses two AP projections, one with the arm in external rotation and one with the arm in internal rotation. This change in position of the arm shifts visibility of the greater and lesser tubercles.


kshipps

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Reply 2 on: Jul 17, 2018
Great answer, keep it coming :)

meow1234

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Reply 3 on: Yesterday
Excellent

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