The reliability of virtual non-contrast reconstructions of photon-counting detector CT scans in assessing abdominal organs.

ABSTRACT:

Background

Spectral imaging of photon-counting detector CT (PCD-CT) scanners allows for generating virtual non-contrast (VNC) reconstruction. By analyzing 12 abdominal organs, we aimed to test the reliability of VNC reconstructions in preserving HU values compared to real unenhanced CT images.

Methods

Our study included 34 patients with pancreatic cystic neoplasm (PCN). The VNC reconstructions were generated from unenhanced, arterial, portal, and venous phase PCD-CT scans using the Liver-VNC algorithm. The observed 11 abdominal organs were segmented by the TotalSegmentator algorithm, the PCNs were segmented manually. Average densities were extracted from unenhanced scans (HU_unenhanced), postcontrast (HU_postcontrast) scans, and VNC reconstructions (HU

SUBMITTER: Dudas I 

PROVIDER: S-EPMC11386360 | biostudies-literature | 2024 Sep

REPOSITORIES: biostudies-literature