To provide a system of which an operator can easily and accurately control injection and imaging operations when a fluoroscopic image is picked up by a fluoroscopic apparatus from a subject to whom a medicinal liquid is injected by a medicinal liquid injector.

Because a fluoroscopic apparatus 200 and a medicinal liquid injector 100 communicate data each other to interlock various operations, the operator, even by himself, can make the fluoroscopic apparatus 200 and the medicinal liquid injector 100 operate easily, surely, and appropriately. This makes it possible, for example, to automatically start picking up a fluoroscopic image when a certain period of time passes after a contrast medium, which is a medicinal liquid, is injected and to automatically stop either one of the fluoroscopic apparatus 200 and the medicinal liquid injector 100 at the same time when the other stops automatically due to completion of operation or malfunction.

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