Abstract
Photon-counting CT (PCCT) represents the most significant hardware transition in clinical CT in five decades, yet radiomics pipelines built on conventional-CT signal characteristics remain formally unvalidated for PCCT data. This Technical Note applies formal signal-chain analysis to the PCCT radiomics pipeline, deriving theoretical stability conditions for IBSI feature classes under PCCT acquisition parameter variation and validating these conditions against published 2023–2025 phantom-study findings.
Venues
Preprint: arXiv · eess.SP, cross-listed physics.med-ph
Journal target: European Radiology Experimental (Springer Nature, open access)
Citation
Walker A. (2026). Towards a Formal Signal Processing Specification for Photon-Counting CT Radiomics: Addressing the Feature Instability Problem through Signal Chain Characterisation. Vitacore Research Collaborative. arXiv · eess.SP, cross-listed physics.med-ph.