Photon counting CT improves coronary stent imaging and fat attenuation index assessment across reconstruction modes.

ABSTRACT:

Objectives

To investigate the effect of photon counting CT (PCCT) ultra-high resolution (UHR) mode on coronary stent visualization and fat attenuation index (FAI) assessment in individuals with percutaneous coronary intervention (PCI).

Methods

Patients who underwent PCI with stent placement and following coronary CT angiography (CCTA) by using a PCCT system were enrolled during January to August 2024. Simulated energy integrating detector CT (EID-CT) images (0.8 mm) were reconstructed with kernel Bv48, while UHR images (0.2 mm) were reconstructed using kernel Bv60 and Bv72. Objective and subjective image quality, stent-specific FAI and peri-stent FAI was evaluated.

Results

A total of 41 patients with 51 isolated stents (69.76 ± 8.75 years; 34 men) were included. Compa

SUBMITTER: Gao Y 

PROVIDER: S-EPMC12549922 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature