The Study
Applying ONCO-RADS to whole-body MRI cancer screening in a retrospective cohort of asymptomatic individuals
This study looked at people who paid for a full-body MRI to check for cancer, and found that if the scan showed something suspicious, those people were more likely to actually have cancer. But it doesn’t prove the MRI caused the cancer or that everyone should get one — it just shows a pattern in this group.
Analysis score
Maximum 44 for a cross-sectional study.
Where the score came from
Doctors used a special full-body MRI scan to check healthy people for hidden cancer. They ranked what they found from safe to very suspicious, and then checked if those suspicions were real cancer.
Where does this study sit?
Reviews of RCTs (Meta-analyses)
Max 100Randomized Trials
Max 90Reviews of Cohort Studies
Max 85Cohort Studies
Max 72Reviews of Case-Control Studies
Max 63Case-Control Studies
Max 58Cross-Sectional & Case Series
Max 50Expert Opinion
Max 544 / 100
Quality score
Snapshots of a population at a single point in time, or descriptions of small groups. Can identify correlations and prevalence, but cannot determine cause and effect.
Key takeaways
Summary
Based on the study abstract and findings.
- 1Yes — finding cancer early (like stage I) means better treatment chances.
- 2But many people with suspicious scans didn’t get follow-up tests, so real cancer rates might be even higher.
- 31.2% of people had cancer.
- 4If the scan said 'very likely cancer' (ONCO-RADS 5), 75% of those people actually had cancer.
- 5If it said 'likely cancer' (ONCO-RADS 4), 43% had cancer.
- 6Two doctors agreed almost perfectly on the rankings.
Score breakdown, methodology, conflicts of interest, evidence analysis & raw study data
Publication
Journal
Cancer Imaging
Year
2024
Authors
Yong-Sin Hu, Chia-An Wu, D. Lin, Po-Wei Lin, Han-Jui Lee, Lo-Yi Lin, C. Lin
Related Content
Claims (5)
When doctors scan the whole body with an MRI on people who feel perfectly fine and have no symptoms, they find cancer in about 1 in 64 of them.
When healthy adults get a full-body MRI scan, those flagged with higher ONCO-RADS scores (4 or 5) are much more likely to actually have cancer—about 4 in 10 for score 4 and 3 in 4 for score 5.
If you're an adult with no symptoms, being older, having high blood pressure, carrying hepatitis B, or having had surgery before might mean your full-body MRI shows more suspicious findings that could need further checking.
When healthy adults without symptoms get a full-body MRI scan, about 1 in 100 are found to have early-stage cancer—like in the lungs, kidneys, or prostate—and catching it this early might help treat it better.
When doctors scan healthy people’s whole bodies with MRI, they find cancer in about 1 out of every 80 people—but almost a quarter of those with suspicious findings never get follow-up tests, so we might be missing even more cancers than we think.
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.