What is a RIS/PACS, and why does your imaging center need one?

If you work at an imaging center, you have almost certainly come across the terms RIS and PACS. But what exactly does each one do, and why are they nearly always mentioned together?

RIS: the radiology information system

The RIS (Radiology Information System) manages everything that is not the image itself: patient scheduling, physician orders, the status of each study and the generation of the final report. It is, in essence, the system that coordinates the administrative and clinical workflow of an imaging service.

PACS: the image archive and viewer

The PACS (Picture Archiving and Communication System) is responsible for storing, transmitting and displaying medical images in DICOM format. It lets a radiologist open a CT or MRI study from any authorized station, without depending on physical film or discs.

Why they work better integrated

When the RIS and the PACS run as separate systems, it is common to lose time reconciling information between them: a study shows up in the PACS but is not updated in the RIS, or a report ends up out of sync with its corresponding study.

An integrated RIS/PACS, like the one NOVA Imaging offers, removes that friction: the order, the study and the report live in the same workflow, visible from a single worklist.

What this means in practice

For a technologist, it means knowing exactly which study comes next and at what priority. For a radiologist, it means opening the viewer and finding the right study without hunting for it. For the administrative team, it means productivity reports and turnaround times without cross-referencing data from two different systems.

If your center still runs on disconnected systems, it is worth evaluating how much time — and how many errors — that manual reconciliation is costing you.

To go deeper, see the NOVA Imaging RIS/PACS as an integrated platform.