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A strong MRI scan may help show a brain tumor's type before surgery

Original title: Noninvasive Profiling of the Glioma Vascular Microenvironment via 7T MRI: Decoding Angiogenic Signatures for Isocitrate Dehydrogenase and World Health Organization Grade Differentiation.

How far along is this research?

This was tested in people. That is the most reliable kind of research we share.

Researchers looked back at scans people already had, so this is not ready for everyday care.

The short version

A very strong MRI scan may give doctors clues about a brain tumor without surgery.

What was studied. Researchers looked back at scans from 218 people with glioma: A tumor that starts in the glial cells, the support cells of the brain and spinal cord. Gliomas are graded 1 to 4 by how fast they tend to grow. See the glossary brain tumors. A strong 7T MRI scan mapped the tiny blood vessels inside each tumor.

What they found. Nine blood vessel patterns stood out as steady and useful. Computer models used those patterns to sort tumors by grade and by a gene change called IDH. The models worked better when facts about the patient were added too.

What this means, and what it doesn't

What it could mean: One day a scan like this might tell doctors more about a tumor before surgery. Right now, a tissue sample is still how the tumor type gets confirmed.

What it doesn't mean: This does not mean a scan can take the place of a biopsy. The team looked back at old scans, so this does not prove the method works in real time. The 7T scanners used here are rare and are not in most hospitals. The models still got some cases wrong. This is not a treatment, and it is not a cure.

Source: PubMed, August 26, 2026 · Read the original

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