Most radiology AI detects.RAIN remembers.
RAIN is designed to connect findings across a patient's prior imaging. At the point of reading, the radiologist sees what is new, growing, treated, stable or resolved, with every statement linked back to its source report.
The history is there. The time to read it is not.
A follow-up study rarely stands alone. It comes with years of prior reports, each written by a different reader in a different style. Radiologists have to reconcile that history under time pressure, one study after another. Findings get lost between exams, interval change can be missed, and imaging can be repeated.
3. Small enhancing focus in the left frontal lobe, nonspecific. Attention on follow-up.
Previously described left frontal lesion measures 8 mm, not significantly changed.
Enhancing lesion, left frontal convexity, 12 mm. Comparison limited.
Illustrative · synthetic text · one finding, three phrasings
Too many priors
Complex patients bring more prior reports than a reading session can absorb.
Findings lost over time
A lesion described in one report may never be tracked in the next.
Missed change, repeated scans
Without the full history, interval change can be missed and imaging repeated that did not need to happen.
Four steps from the archive to the reading room.
RAIN reads a patient's imaging history and follows each finding across exams.
The full history, first
RAIN gathers the patient's prior reports and studies before the new exam is opened.
Finding to finding
Each finding is linked to the same finding in earlier exams. RAIN tracks the finding, not just the report.
A temporal state for each
Every linked finding is given a state: new, growing, treated, stable or resolved.
A summary you can use
The radiologist receives a concise longitudinal summary at the point of reading, designed to fit a busy list.
Every statement has a source.
In clinical settings, an answer only helps if it can be trusted and checked. RAIN is built to tie every clinically meaningful statement to the report it came from, so the radiologist can open the source and check it directly. This design aims to reduce hallucination risk and keep the radiologist in control.
Linked to a report
Each clinically meaningful statement links to a specific source report.
One step from the original
The original language stays one step away, ready to be checked.
Organized, not interpreted
RAIN organizes the history. The radiologist makes the interpretation.
Try the longitudinal view on a fictional case.
Open the interactive demo to see a finding timeline, the source sentences behind each finding, and a cited comparison paragraph inserted into a report draft.