X-Ray television system with a processing circuit for eliminating interfering structures

摘要

X-Ray television system comprising an X-ray image intensifier (4), an optical coupler, a television camera tube (5), an image store for a blank picture (not containing wanted information), a processing circuit (6) for eliminating interfering structures by combining blank picture signals with signals from a picture or a patient fluoroscopy and a monitor (7). In the system, at least one light source (10) is provided at the X-ray image intensifier (4). This light source is aligned with the photocathode and fluorescent input screen and is switched on while the blank picture is being produced with uninterrupted X-rays. <IMAGE>