Heart CT radiation under the microscope: new registry tracks exposure
NCT ID NCT03253692
First seen Jun 25, 2026 · Last updated Aug 14, 2026 · Updated 3 times
Summary
This completed study looked at how much radiation people receive during heart CT scans (CCTA) in everyday hospital practice. Researchers enrolled 66 adults who needed a heart CT and recorded the radiation dose used, along with any dose-saving techniques. The goal was to understand variation across different machines and hospitals, and to identify opportunities to reduce radiation exposure without sacrificing image quality.
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 hospitals use safer radiation levels for heart CT scans, reducing long-term cancer risk for patients.
- What could go wrong
- This is an observational registry, not a treatment trial. It only measures current practices and does not test any new intervention or directly improve patient outcomes.
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.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
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National Institutes of Health Clinical Center
Bethesda, Maryland, 20892, United States
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University of Kentucky
Lexington, Kentucky, 40506, United States
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Walter Reed National Military Medical Center
Bethesda, Maryland, 20889, United States
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