Siemens Aktiengesellschaft

Jorg Haendle

Wolfgang Maass

The invention relates to an X-ray diagnostic device with an X-ray converter having a luminescent fluoroscopic screen which latently stores the respective X-ray picture and can be activated to light up for image reproduction by an additional source of rays, with a scanning device for the fluoroscopic screen, an optical system, a detector, and a video monitor, in which an image intensifier is coupled to the luminescent fluoroscopic screen to form an image intensifier unit.

X-ray diagnostic device with an X-ray converter

A stereo X-ray subtraction apparatus has a stereo X-ray system and an X-ray image intensifier television chain in which, for each channel, the video signals of successive stereo partial images are summed in a weighted fashion in a first image memory, the output of the first image memory being supplied to a first input of a first subtraction stage, with the output of the first image memory in the other channel being supplied to a second input of the first subtraction stage, the output of the first subtraction stage being supplied to a second image memory and to a first input of a second subtraction stage, and the output of the second image memory being supplied to a second input of the second subtraction stage. The outputs of the second subtraction stages for each channel are supplied to a display unit for displaying the resulting stereo image.

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Erlangen, Germany

Jorg Haendle