| 摘要 |
PURPOSE:To collect a fluoroscopic image in synchronizing with a living body signal accurately by obtaining a trigger signal in response to the moving state of a living body from the living body signal and controlling the scanning timing of an electron beam in synchronizing with this trigger signal. CONSTITUTION:A cardiogram is detected from a body 22 to be inspected by a cardiograph 17 and when this cardiogram signal is given to a cardiograph interface 13, a trigger signal is generated in synchronizing with, e.g., an R wave. This trigger signal is given to a synchronizing signal generating circuit 10. A horizontal counter 10b and a vertical counter 10c are restored to the initial state after a prescribed time is elapsed every time the trigger signal is generated in the circuit 10, and the output is given as a horizontal and a vertical synchronizing signal of an image pickup tube 3' of an X-ray TV camera 2'. Further, the trigger signal is given also to a system controller 16, and an X-ray exposure signal is generated after a prescribed time is elapsed from the trigger signal, the exposure signal is given to an X-ray controller 18 to expose an X-ray pulse from an X-ray tube 21. |
