ArticleThe international journal of cardiovascular imaging2026
Endoleak detection with photon-counting detector CT at various radiation doses after endovascular aneurysm repair: a phantom study.
Article in The international journal of cardiovascular imaging, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
After endovascular aneurysm repair, patients require lifelong CT follow-ups. Photon-counting detector CT (PCD-CT) may improve detection of tiny iodinated structures at low radiation dose. The aim of this experimental study was to find the lowest dose which still provides high detectability of small endoleaks using PCD-CT with 55 keV and 50 keV virtual monoenergetic images (VMIs). An abdominal aneurysm phantom mimicking medium and large patients was scanned at 100%, 50%, 25%, and 12.5% radiation dose using PCD-CT. Besides standard 55 keV images, 50 keV VMI were reconstructed at 25% and 12.5% dose. The ninety-six CT series containing 1728 endoleaks of 2-6 mm were read by three independent observers. Areas under the alternative free-response operational characteristic curve (A
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