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Which scanner spots the smallest tumors? new study puts two to the test

NCT ID NCT03956459

Completed Knowledge-focused Sponsor: Institut Claudius Regaud Source: ClinicalTrials.gov ↗

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study tested two different PET-CT scanners to see which one is better at finding very small cancer spots (less than 1 cm) in patients. Twenty-four people with cancer each had two scans, one on each machine. The researchers then added virtual lesions to the images to compare how well each scanner detected them. The goal is to improve imaging for early cancer detection.

What this could mean

Our plain-language read of the trial. This is informational only — not medical advice or a prediction.

What this could lead to
If successful, this could help doctors choose better scanners to find very small tumors, potentially improving early detection.
What could go wrong
This is a small, completed study with only 24 participants and uses artificial lesions, so results may not apply to real-world detection.

This is an AI summary of the original study and may miss details. Read our disclaimer.

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Conditions

The condition(s) this trial relates to.

cancer neoplasm

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

CANCER

Contacts and locations

Locations

  • Institut Universitaire du Cancer Toulouse - Oncopole

    Toulouse, France

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