What is the proper CR angle and direction for the axial projection of the calcaneus when the ankle is dorsiflexed so that the plantar surface of the foot is perpendicular to the IR?

Question

Quizplus · Accepted Answer

For the axial projection of the calcaneus with the ankle dorsiflexed and the plantar surface of the foot perpendicular to the image receptor (IR), a 40 degrees cephalad central ray (CR) angle is required to properly align the CR with the long axis of the calcaneus. This ensures that the calcaneus is accurately represented on the radiographic image.

What Is the Proper CR Angle and Direction for the Axial