Letter to the Editor: Cerebral CT perfusion dose: diagnostic reference levels should stimulate, not replace, optimization
Thomas Stein, Alexander Rau, Elias Kellner · 2026
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Description
Thomas Stein and co-authors write a letter on brain scan dose reference levels in a 2026 piece. A four country survey proposed dose guideposts for many CT scan types. For brain perfusion scans, the proposed levels sat above the middle site's values. The letter argues such levels should provoke review, not serve as targets.
Most sites used fixed scan settings, so local design set the dose. Staying under harm thresholds does not prove a protocol is tuned, they note. Individual patient tuning barely featured in the survey's dose data. The writers urge sites to treat the numbers as a starting bell for tuning.
Catalog record
| CREATOR | Thomas Stein, Alexander Rau, Elias Kellner |
|---|---|
| YEAR | 2026 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 5 KB |
| VERSION | 1.0 |
| LICENSE | CC BY 4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |