Radiological.ai

For teams · Radiology peer review

Radiology peer review software and AI peer learning that finds the cases worth reviewing

The short answer

Radiology peer review is the quality process in which one radiologist evaluates a colleague's earlier interpretation, usually while reading a new study that has a prior for comparison. In the United States it is close to mandatory: active participation in a peer review program is required for American College of Radiology facility accreditation in CT, MR, nuclear medicine, PET and ultrasound, and the Joint Commission expects documented ongoing professional practice evaluation. Almost all of it now runs through software, either the ACR RADPEER program or a commercial platform with a peer review module. Radiological.ai is not a peer review system of record and does not replace a RADPEER submission. It flags suspected findings on every study as decision support, which changes which cases are worth putting in front of a reviewer, and the radiologist reviews every flag and signs every report.

Nearly every radiology group in the country runs peer review, and very few of them think it is working. The mechanics are familiar: a percentage of reads gets pulled for a colleague to score, the scores go into a spreadsheet or a module, the numbers go to the quality committee, and the committee files them because an accreditation body asked for them. The Joint Commission expects documentation at roughly a five percent random sampling rate. Five percent chosen at random, on a distribution where the reads that actually matter are rare, is a sampling method almost perfectly designed to miss the interesting case.

That is the real problem with peer review, and it is why the field has been moving toward peer learning instead. A survey of ACR members found 53 percent of respondents using peer learning, against 29 percent who were not. Scoring a colleague one through four produces a defensible audit trail and almost no education. Peer learning drops the score, keeps the case, and puts it in front of the group as something to learn from. The catch is that peer learning still depends on somebody finding the case in the first place, and random sampling finds it no better than it did before.

This is where Radiological.ai fits, and it is worth being exact about the boundary. We are not a peer review platform. We do not hold your scores, we do not submit to RADPEER, and we do not produce your accreditation documentation. What we do is read every study that comes through, flag the regions that look like a suspected finding, and draft the structured report. When a flag on a study does not line up with what the signed report says, that study is a candidate worth a human look. That is case selection, not adjudication, and every judgment about whether anything was actually missed stays with the radiologists on your quality committee.

Last updated July 2026

The Reading Station

Worklist

SERIES 1 · AX
SLICE 24/64
SAMPLE STUDY
NOT FOR DIAGNOSTIC USE
W 80 · L 40
ILLUSTRATIVE SAMPLE

Structured report

Draft

Run the assistant to draft this report for review.

You review & sign

Illustrative sample · not a real patient study, not a diagnosis

Drafted in · you review & sign Worklist re-prioritized

Decision support for qualified clinicians. Radiological.ai does not provide a diagnosis and is not a substitute for professional judgment.

Run the assistant

Flag · prioritize · draft · you review and sign

X-RAY CT MRI BUILT WITH RADIOLOGISTS

Decision support not a diagnosis

You review & sign

Peer review is a reporting problem before it is a quality problem, because a discrepancy is only visible if the report is structured enough to compare against. That is the argument on our radiology reporting software page, and it is why the same assistant handles AI radiology reporting. The findings most likely to turn up as review candidates are the subtle ones, which is why the AI fracture detection and AI lung nodule detection pages cover the same ground from the clinical side.

If you are weighing this against a full quality module from a workflow vendor, the honest read on who does what is in our best AI radiology software roundup, and the questions worth asking in a demo are in the radiology AI vendor evaluation questions. Groups running distributed or overnight coverage should also read the teleradiology software page, since peer review across contractors is a harder governance problem than peer review inside one department.

Why it works

What your group gets with radiology peer review

Every study looked at, not five percent

Random sampling reviews a small slice of the work and finds what is common rather than what is significant. The assistant runs on the whole volume, so the cases it raises are the ones where something was flagged, not the ones a number generator happened to pick. Coverage is the part of peer review that sampling can never fix.

Discrepancy as a prompt, never a verdict

When a flagged region does not appear in the signed report, the study is surfaced as a candidate for review. That is all it is. The software does not decide that a finding was missed, does not score the radiologist, and does not grade anyone. A human reviewer opens the case and reaches the conclusion.

Cases your peer learning conference can use

A peer learning program lives or dies on whether the cases presented are worth the room's time. Flag-versus-report candidates tend to be genuinely instructive, because they cluster on subtle findings and satisfaction-of-search rather than on routine disagreement about wording.

What it handles

Flagged, prioritized and drafted for your review

The assistant pre-reads each study, surfaces a region of interest for review, re-prioritizes the worklist, and drafts the structured report in your template. You confirm, edit and sign.

  • Surfaces candidate cases where a flagged region is not reflected in the signed report
  • Runs across the full study volume rather than a random sample
  • Feeds a peer learning conference with cases worth discussing
  • Leaves scoring, adjudication and accreditation records with your existing system
  • Runs inside your PACS and worklist over DICOM and HL7 or FHIR
  • Radiologists review every candidate, dismiss what is wrong and keep the final say
RADIOLOGY PEER REVIEW STAT

Region of interest flagged for review

A focal region is surfaced on the sample study for the radiologist to review. The assistant does not characterize it as a diagnosis.

Draft impression

Suspected finding flagged for radiologist review. Correlate clinically and confirm. Draft for review and sign-off.

Illustrative sample · not for diagnostic use You review & sign

Why Radiological.ai

One assistant across the whole read

Not three vendors stitched together. Flag, prioritize and draft in one calm pane, on X-ray, CT and MRI, with the radiologist signing every study.

Flags suspected findings

A second set of eyes surfaces regions of interest for review on every study, so a suspected finding is less likely to slip past late in a shift.

Prioritizes the worklist

Suspected-critical studies move to the top, so urgent reads surface ahead of routine follow-ups across your sites and shifts.

Drafts the report

A structured draft arrives in your template, ready to edit and sign. The draft saves the typing and the measuring, never the judgment.

Good questions

Questions about radiology peer review

It is the process where one radiologist evaluates another radiologist's earlier interpretation of a study, most often while reading a new exam that has a prior available for comparison. The reviewer records whether they agree with the original read, and the results roll up into a quality program. Its purpose is quality assurance and professional practice evaluation, not discipline, although in practice groups differ a great deal on how it feels.
Yes. Active participation in a peer review program is a requirement for facilities applying for ACR accreditation in CT, MR, nuclear medicine, PET, ultrasound, breast ultrasound and breast MRI. You do not have to use RADPEER specifically. Facilities can be approved with an equivalent program in place, which is what lets groups run a commercial platform or an internal system instead, as long as it genuinely does the job and is documented.
RADPEER is the peer review program the American College of Radiology introduced in 2002, and it is the most widely used method in the United States, with more than 18,000 radiologists and 1,100 groups participating. Cases are selected for review and the reviewing radiologist scores the prior interpretation on a scale from 1, meaning agreement, to 4, meaning a significant discrepancy. The ABR accepted RADPEER as practice quality improvement in 2009.
The commonly cited benchmark is five percent of cases selected at random, which is the documentation rate the Joint Commission has historically expected. Some programs set counts by modality or body part instead of a flat percentage. The number is a documentation standard rather than a statistical one, and it is the reason a lot of quality leads describe peer review as an exercise in producing evidence rather than in finding problems.
Peer review scores a prior interpretation and produces a record. Peer learning removes the score, collects instructive cases including near misses and good calls, and puts them in front of the group to learn from. The criticism that drove the shift is that score-based review has not been shown to measure competence or improve performance, and that it can build resentment. Most groups now run peer learning for education and keep a lighter scored process for accreditation evidence.
It is being used for case selection rather than for judgment, and that distinction is the whole point. Because software can run over the entire volume instead of a sample, it can shortlist studies where its own flags do not match the report, and a human decides what those cases mean. Published work gives a sense of the funnel: one review of 25,104 chest radiographs surfaced discrepancies in 21.1 percent of cases, of which 0.9 percent were judged clinically relevant on external review and 0.1 percent confirmed by the institution's own radiologists. The shortlist is noisy, so it needs human triage, but it beats picking at random.
Groups typically use the ACR RADPEER program on its own, a peer review module inside a reporting or workflow platform such as PowerScribe, Intelerad, Sectra or Primordial, an internal home-grown system, or some combination. Less than two percent of peer review is still done on paper. The practical differences between them are case selection, whether it interrupts the read, and how much work it takes to produce the report your accreditation body wants.
OPPE is ongoing professional practice evaluation, the routine competency monitoring that the Joint Commission and CMS expect for credentialed physicians, and FPPE is the focused follow-up when OPPE raises a concern or when a new hire is being evaluated. Peer review data feeds OPPE, but the ACR is explicit that RADPEER is not designed to be a sole OPPE measure. Groups that treat it as one usually find out during a survey.
No, and we would rather say so plainly than lose your afternoon in a demo. We do not store scores, submit to RADPEER, or generate accreditation documentation, so whatever you use for the record keeping stays. What changes is which cases reach that system: instead of a random five percent, your reviewers get a shortlist built from studies where a flag and a signed report disagree. Keep your existing platform and use ours to feed it.
RADPEER is priced by the ACR as a program subscription scaled to group size, while peer review modules from workflow vendors are usually bundled into a larger platform contract rather than sold separately, which makes the true cost hard to isolate and easy to under-quote. Ask any vendor what the line item is on its own, and what happens to it at renewal in year three. Radiological.ai is priced per radiologist with flagging, worklist prioritization and report drafting included, and our pricing page carries the current numbers.

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Flag suspected findings, prioritize the worklist, and draft the structured report. You review and sign every study.

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Radiological.ai is a workflow and decision-support tool for qualified clinicians. It does not provide a diagnosis and is not a substitute for professional medical judgment.