Author Question: In order to achieve uniform density for parts with great thickness differences, the technologist ... (Read 28 times)

EY67 · **on:** Jul 17, 2018

In order to achieve uniform density for parts with great thickness differences, the technologist should consider:

effective focal spot
small focal spot
actual focal spot
anode heel effect

Question 2

Which of the following projections will best demonstrate the patella?

PA
AP oblique
AP
PA oblique

Ddddd · **Reply #1 on:** Jul 17, 2018

Answer to Question 1

anode heel effect

Rationale: The angle of the anode influences the heel effect. With the anode heel effect, greater intensity of the beam will be emitted from the cathode end of the beam; therefore the patient's thicker end of the part should be positioned accordingly.

Answer to Question 2

PA

Rationale: The patella will be best imaged when positioned as close to the image receptor as possible. This will reduce magnification and improve detail of the part. Patella protocol entails: PA, mediolateral projection, and a tangential if there is no evidence of fracture.