Robustness of radiomics among photon-counting detector CT and dual-energy CT systems: a texture phantom study.

ABSTRACT:

Objectives

To evaluate the robustness of radiomics features among photon-counting detector CT (PCD-CT) and dual-energy CT (DECT) systems.

Methods

A texture phantom consisting of twenty-eight materials was scanned with one PCD-CT and four DECT systems (dual-source, rapid kV-switching, dual-layer, and sequential scanning) at three dose levels twice. Thirty sets of virtual monochromatic images at 70 keV were reconstructed. Regions of interest were delineated for each material with a rigid registration. Ninety-three radiomics were extracted per PyRadiomics. The test-retest repeatability between repeated scans was assessed by Bland-Altman analysis. The intra-system reproducibility between dose levels, and inter-system reproducibility within the same dose level, were evaluated by

SUBMITTER: Zhu L 

PROVIDER: S-EPMC11782343 | biostudies-literature | 2025 Feb

REPOSITORIES: biostudies-literature