A radiograph of an AP axial L5-S1 projection reveals that the joint space is not open.The following factors were used on this female patient: 80 kV, 40-inch (102-cm) SID, grid, 35° caudad angle, and CR centered to the ASIS.Which of the following factors needs to be modified to produce a more diagnostic image?
A) Increase the CR angulation.
B) Decrease the CR angulation.
C) Change the direction of the CR angulation.
D) Center the CR higher to place it parallel to the joint space.
Correct Answer:
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