Constrained one-step material decomposition reconstruction of head CT data from a silicon photon-counting prototype.

ABSTRACT:

Background

Spectral CT material decomposition provides quantitative information but is challenged by the instability of the inversion into basis materials. We have previously proposed the constrained One-Step Spectral CT Image Reconstruction (cOSSCIR) algorithm to stabilize the material decomposition inversion by directly estimating basis material images from spectral CT data. cOSSCIR was previously investigated on phantom data.

Purpose

This study investigates the performance of cOSSCIR using head CT datasets acquired on a clinical photon-counting CT (PCCT) prototype. This is the first investigation of cOSSCIR for large-scale, anatomically complex, clinical PCCT data. The cOSSCIR decomposition is preceded by a spectrum estimation and nonlinear counts correction calibration s

SUBMITTER: Schmidt TG 

PROVIDER: S-EPMC11073613 | biostudies-literature | 2023 Oct

REPOSITORIES: biostudies-literature