Author Question: A left lateral sacral projection demonstrates the greater sciatic notches without superimposition ... (Read 12 times)

folubunmi · **on:** Jul 17, 2018

A left lateral sacral projection demonstrates the greater sciatic notches without superimposition and the superiorly situated femoral head anteriorly. How should the positioning setup be adjust-ed for an optimal projection to be obtained?

a. Rotate the right side of the pelvis anteriorly.
b. Position a radiolucent sponge between the lateral body surface and the imaging table to eliminate lumbar sagging.
c. Angle the central ray caudally.
d. Rotate the right side of the pelvis posteriorly.

Question 2

An AP axial sacral projection obtained with a perpendicular central ray demonstrates

1. an elongated sacrum.
2. the sacrum and symphysis pubis without alignment.
3. a foreshortened sacrum.
4. the symphysis pubis superimposed over the lower sacral segments.
a. 1 and 4 only
b. 2 only
c. 3 only
d. 3 and 4 only