Abstract
A method, rotatory crossgraphy, which is capable of taking the radio-gram of the horizontal or inclined, planed or curved transection of any part in the body, is described.
A tube focus and two rotation axes of a rotation table A for a patient, and a rotation table B for a film are arranged so as to be in one vertical plane. The central X-ray is made to incline 15 degree to the surface of the rotation table B. Rotating two rotation tables with the same angular velocity from 0 degree to 180 degree, we expose. In order to remove the scattered and harmful X-ray two slits and Bucky-Potters Diaphragm are equipped at the front of the patient. Model experiments and then human body experiments were tried and the optimum technique of the rotatory crossgraphy were studied.
