An Approach to Biplane Cineangiocardiography

Abstract

In an effort to attain the objectives previously outlined for satisfactory cineangiocardiographic studies (1), an installation was planned which depended primarily upon two ll-inch intensifiers. A number of other essential components were included in the installation, and these were arranged in a fashion which has proved functional and quite satisfactory. The Components 1. The Eleven-Inch Image Intensifier (Figs. 1 and 2): The ll-inch diameter image intensifier manufactured by Philips of North America is a bulky unit, some 56 inches in length, weighing about 350 pounds. In principle, it is no different from the 5-inch intensifiers of the simple electron-optical type, consisting of an evacuated glass envelope with a fluorescent screen at one end and an aluminum-backed phosphor layer at the other. X-rays, having passed through the patient, produce an image on the fluorescent screen, and a photoelectric layer in back of the screen emits electrons whose point intensity is proportional to the local brightness...