ALB and congenital secretory chloride diarrhea 1: <h4>Purpose</h4>The aim of this study was to investigate the utility of segmental hepatic extracellular volume fractions (fECV) calculated using a photon-counting detector CT (PCD-CT) for predicting liver function decline, as reflected by the modified albumin-bilirubin (mALBI) grade in chronic liver disease (CLD).<h4>Materials and methods</h4>A total of 146 patients with CLD underwent PCD-CT of the liver, including 3-minute equilibrium phase imaging.