Characterization of size-specific effects during dual-energy CT material decomposition of non-iodine materials.

ABSTRACT:

Purpose

The dual-energy CT (DECT) LiverVNC application class in the Siemens Syngo.via software has been used to perform non-iodine material decompositions. However, the LiverVNC application is designed with an optional size-specific calibration based on iodine measurements. This work investigates the effects of this iodine-based size-specific calibration on non-iodine material decomposition and benchmarks alternative methods for size-specific calibrations.

Methods

Calcium quantification was performed with split-filter and sequential-scanning DECT techniques on the Siemens SOMATOM Definition Edge CT scanner. Images were acquired of the Gammex MECT abdomen and head phantom containing calcium inserts with concentrations ranging from 50-300 mgCa/ml. Several workflows were explor

SUBMITTER: Miller J 

PROVIDER: S-EPMC8664138 | biostudies-literature | 2021 Dec

REPOSITORIES: biostudies-literature