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Author Question: Sesamoid bones in the foot would be best imaged with: tangential plantodorsal axial ... (Read 83 times)

future617RT

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on: Jul 17, 2018
Sesamoid bones in the foot would be best imaged with:
 
 tangential
  plantodorsal axial
  weight-bearing AP
  AP axial

Question 2

The central ray for the lateromedial fan lateral hand is directed to:
 
 2nd proximal interphalangeal joint
  2nd metacarpophalangeal joint
  1st metacarpophalangeal joint
  3rd metacarpophalangeal joint


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IAPPLET

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

tangential

Rationale: The tangential or skimming beam will best image the sesamoids in profile and free of superimposition. The foot is dorsiflexed and a perpendicular beam is aligned to skim the posterior aspect of the metatarsophalangeal joint.

Answer to Question 2

2nd metacarpophalangeal joint

Rationale: The lateral hand will rotate the thumb side up in position creating a lateromedial projection. The metacarpals should be superimposed and are of primary interest. The fingers should be separated. The central ray is directed to the 2nd metacarpophalangeal joint (MCP) and collimation is to include the entire hand and 1 inch of the distal radius and ulna.


future617RT

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

covalentbond

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Reply 3 on: Yesterday
Excellent

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