The correct angle of Lowe's position photography of mastoid is

The correct angle of Lowe's position photography of mastoid is 65438 05 degrees. According to relevant data, it is also called mastoid double15 angle lateral position. Objective To observe the mastoid air cavity, tympanic lid, sigmoid sinus, tympanic cavity and external auditory canal orifice. The photography position is prone, and the head turns sideways so that the median sagittal plane and the bed surface form 15. The center line inclines to the foot at an angle of15, and is injected from 5cm above the back of the opposite external ear hole.