An Information Infrastructure (II) provides a space for information sharing and collaboration that allows the spontaneous association of people, organizations and technological components located in different geographical contexts to develop some activity. II do not originate from projects specified a priori, its formation occurs through the evolution of an installed base. The current teleradiology infrastruc-ture does not yet constitute an II for radiological practice, as the inertia present in its installed base hampers its evolution. This paper presents DicomFlow, a decentralized architectural model, built on the email and PACS-DICOM infrastructures, which uses this very inertia to promote the formation of an II for radiological practice.