Robust automated method of spatial resolution measurement in radiotherapy CT simulation images.

ABSTRACT:

Background

Variation in imaging protocol, patient positioning, and the presence of artifacts can vary image quality in CT images used for radiotherapy planning. Automated methods for spatial resolution (SR) estimation exist but require further investigation and validation for wider adoption.

Purpose

To validated previously existing algorithm for SR estimation and introduce improvements that make it robust to patient positioning, CT protocol, site, and artifacts.

Method

A reference algorithm based on the previous gold standard was recreated and modified to improve robustness. The algorithms were tested on three different datasets: (1) a cylindrical ACR CT QC phantom scanned using a Siemens SOMATOM Definition Edge scanner and reconstructed using 61 different kernels, (2

SUBMITTER: Govyadinov P 

PROVIDER: S-EPMC11905253 | biostudies-literature | 2025 Mar

REPOSITORIES: biostudies-literature