When people got a full-body MRI scan and then had a biopsy done just to check if something was wrong, more than half of them turned out to have cancer — so the biopsy seems to be a good way to find real cancer cases in this group.

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Evidence from Studies

Supporting (1)

39

Community contributions welcome

39

Abstract 7406: Noncontrast screening whole body MRI with diffusion-weighted imaging for multi cancer detection: a retrospective case series study

Cross-Sectional Study

Human

The study found that when doctors used a special MRI scan and then took a tissue sample only when something looked suspicious, more than half of those samples turned out to be cancer — which is exactly what the claim says.

Contradicting (0)

0

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No contradicting evidence found

Gold Standard Evidence Needed

According to GRADE and EBM methodology, here is what ideal scientific evidence would look like to definitively prove or disprove this specific claim, ordered from strongest to weakest evidence.

Source Study

Abstract 7406: Noncontrast screening whole body MRI with diffusion-weighted imaging for multi cancer detection: a retrospective case series study

Score: 39

DOI: 10.1158/1538-7445.am2025-7406

Similar Assertions

When doctors use whole-body MRI scans on people who feel fine and aren’t sick, they find cancer in only about 1.57 out of every 100 people — so it’s not very good at catching cancer early in healthy folks.

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85%

When doctors use full-body MRI scans on people who feel fine, about two out of three cancers they find are in body parts that don’t usually get checked during routine screenings—so this scan might catch cancers other tests miss.

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82%

When doctors didn’t have a regular test to check for cancer, a special full-body MRI scan found cancer in nearly 7 out of 10 people—so it might help catch cancers that other tests miss.

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82%

When doctors scan the whole body with an MRI in people who feel fine and have no reason to think they have cancer, they find cancer in about 1.57 out of every 100 people.

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81%

If you get a full-body MRI scan and have no symptoms or known cancer risks, about 1 in 60 people might be found to have cancer they didn’t know about — so it’s kind of helpful, but not super reliable, for finding hidden cancers in healthy people.

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81%