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A blood test to check the radiation dose a patient received

Original title: Cytogenetic biodosimetry for radiotherapy: anthropomorphic phantom-based dose-response calibration and in vivo evaluation.

How far along is this research?

This was done on cells in a lab, not in people. It is a very early step.

This was an early test of a measuring method in a few patients, not a treatment.

The short version

Researchers tested a blood test that may show how much radiation a patient's body got.

What was studied. Researchers put blood from one healthy donor inside a lifelike body model and gave it radiation. They then tested blood from 12 radiation patients, 5 with glioblastoma: A glioma that is given grade 4. Grade 4 is the highest grade there is. The tumor grows fast. Treatment usually starts soon after it is found. It often means surgery, and then radiation and chemotherapy. See the glossary and 7 with breast cancer.

What they found. The dose curve from the body model fit the expected pattern well. But the predicted blood changes were too low in 10 of 12 patients. The link between the predicted and the real results was weak.

What this means, and what it doesn't

What it could mean: This may one day help doctors measure the radiation a person's body actually took in. For now it is only a first test of the idea.

What it doesn't mean: This is not a treatment and not a cure. It is a very early test of an idea, tried in only 12 people. It does not change how radiation is planned or given today. The researchers say much larger studies are needed first.

Source: PubMed, October 19, 2026 · Read the original

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