Author Question: Which line and tube angle combination is required for the PA axial Caldwell? IOML and perpendicular ... (Read 68 times)

ahriuashd · **on:** Jul 17, 2018

Which line and tube angle combination is required for the PA axial Caldwell?

IOML and perpendicular CR
OML and perpendicular IR
OML and 15 degrees caudal
IOML and 15 degrees caudal

Question 2

Which position is demonstrated on the radiograph?

flexion lateral
true lateral
extension lateral
bending lateral

cloud · **Reply #1 on:** Jul 17, 2018

Answer to Question 1

OML and 15 degrees caudal

Rationale: The PA axial Caldwell requires OML to be aligned perpendicular. With a 15 degree caudal angle, this will push the petrous pyramids into the lower one-third of the orbits.

Answer to Question 2

extension lateral

Rationale: Extension lateral will require the patient to slowly raise the chin, extending the chin until maximum tolerable position is attained. The spinous processes will come closer together. Flexion and extension laterals will evaluate the mobility of the neck.