Author Question: A means to remove low energy x-rays from the beam and harden the beam is: filtration aperture ... (Read 157 times)

jrubin · **on:** Jul 17, 2018

A means to remove low energy x-rays from the beam and harden the beam is:

filtration
aperture diaphragms
collimator
AEC

Question 2

In reference to the image, which of he following indicates that a proper image has been attained?

the talotibial joint is open and the tuberosity is sufficiently demonstrated
the talocalcaneal joint is not sufficiently penetrated
the tuberosity is seen well and in profile
the talocalcaneal joint is open and the tuberosity is sufficiently demonstrated

popopong · **Reply #1 on:** Jul 17, 2018

Answer to Question 1

filtration

Rationale: X-ray beams are polyenergetic. In efforts to remove the low energies from the beam that contribute to patient skin dose, filtration is necessary.

Answer to Question 2

the talocalcaneal joint is open and the tuberosity is sufficiently demonstrated

Rationale: The plantodorsal axial represents the talocalcaneal joint open. The entire calcaneus is demonstrated with sufficient density from the joint space to the tuberosity.