Potential of photon-counting detector CT technology for contrast medium reduction in portal venous phase thoracoabdominal CT.

ABSTRACT:

Objectives

To compare image quality and iodine attenuation intra-individually in portal venous phase photon-counting detector CT (PCD-CT) scans using protocols with different contrast medium (CM) volume.

Materials and methods

A prospectively acquired patient cohort between 04/2021 and 11/2023 was retrospectively screened if patients had the following combination of portal venous phase thoracoabdominal CT scans: (a) PCD-CT with 120 mL CM volume (PCD-CT_{120 mL}), (b) PCD-CT with 100 mL CM volume (PCD-CT_{100 mL}), and (c) prior energy-integrating detector CT (EID-CT) with 120 mL CM volume. On PCD-CT, virtual monoenergetic image (VMI) reconstructions at 70 keV were applied for both groups as well as additional VMI at 60 keV for PCD‑CT_{100 mL}. Quantita

SUBMITTER: Popp D 

PROVIDER: S-EPMC12226673 | biostudies-literature | 2025 Aug

REPOSITORIES: biostudies-literature