AI tool spots hidden regrowth in acoustic neuromas after radiosurgery
Original title: Volumetric Assessment of Vestibular Schwannomas Exhibiting Internal Growth After Stereotactic Radiosurgery: Application of Artificial Intelligence.
How far along is this research?
- Lab cells
- Animals
- Review
- Tested in people
This was tested in people. That is the most reliable kind of research we share.
The tool was tested on old scans from real patients, but it is not yet used in regular care.
The short version
A computer tool matched expert doctors at finding tumor regrowth that is easy to miss on scans.
What was studied. Researchers looked back at 170 MRI scans from 85 patients with a vestibular schwannoma, a tumor on the hearing and balance nerve. All had been treated with stereotactic radiosurgery, a focused form of radiation. Scans were outlined two ways, by hand by experts and by a computer program.
What they found. Some tumors regrow inside themselves, in soft or fluid-filled parts. This pattern showed up in 4.7% of cases. But it made up 27% of the tumors judged to be growing again on scans. In those cases, the computer's readings closely matched the experts' readings, including whether the tumor had grown by 20% or more.
What this means, and what it doesn't
What it could mean: Regrowth inside a tumor is hard to see with the usual way of measuring. A tool like this might help doctors catch that change sooner during follow-up scans. That could mean a clearer picture of whether treatment is still holding.
What it doesn't mean: This does not mean a new treatment. It is a tool for reading scans, not something that shrinks a tumor. The study looked back at old scans at one center, and the authors call it preliminary. It has not been tested going forward in the clinic, and it is not in everyday use. It is not a promise of a cure.
Source: PubMed, August 12, 2026 · Read the original
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