A less than optimal AP oblique sacroiliac joint projection demonstrating the ilium superimposing the inferior sacral ala and lateral sacrum will
a. also demonstrate the lateral sacral ala superimposing the iliac tuberosity.
b. demonstrate an open sacroiliac joint.
c. also demonstrate the superior and inferior sacral alae without iliac superimposi-tion.
d. require decreased pelvic obliquity to obtain optimal positioning.
Question 2
An AP projection of the sacroiliac joints taken with insufficient central ray angulation will
a. demonstrate the inferior sacrum without symphysis pubis superimposition.
b. demonstrate sacral elongation.
c. demonstrate the inferior sacrum with symphysis pubis superimposition.
d. occur if a 35-degree cephalic angle is used on a female patient.
