Low-dose cone-beam CT for gastric volumetry in endoscopic sleeve gastroplasty.

ABSTRACT: The study aimed to evaluate the feasibility of using cone-beam computed tomography (CBCT) for gastric volume assessment before and after endoscopic sleeve gastroplasty (ESG), focusing on patient radiation dose. Ten patients scheduled for ESG were prospectively enrolled. Each patient underwent three CBCT scans under anesthesia: two scans following CO₂ insufflation of the gastric lumen-one pre-ESG and one post-ESG-and a third scan post-ESG after gastric distension with Gastrografin. Image quality was evaluated for its adequacy in generating three-dimensional reconstructions and calculating gastric volumes. Dose-area product was recorded for each scan and used to estimate the effective dose (ED) via Monte Carlo simulations using the PCXMC rotational model. Although image quality di

SUBMITTER: Nacci I 

PROVIDER: S-EPMC12504165 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature