X-RAY IMAGE DIAGNOSTIC DEVICE

PROBLEM TO BE SOLVED: To provide an X-ray image diagnostic device capable of observing an operating condition of an X-ray tube for offering operation data and predicting a replacement timing by a predetermined operation condition. SOLUTION: Data about a lifetime of the X-ray tube 12 are obtained from a tube usage quantity control part 17 by an X-ray control part 14 carrying out operation control of the X-ray tube 12. These data are compared with previously stored tube lifetime data 16, and a lifetime of the X-ray tube 12 is obtained according to predetermined computing. In expiry of the lifetime or before it, an alarm is indicated in a display part 21. The lifetime can be informed to an information management system 31 on the outside via a data transmission part 18.