Related Experiment Video
Updated: Aug 17, 2026

Point-of-Care Kidney and Genitourinary Ultrasound in Adults: Image Acquisition
Published on: June 21, 2024
Urinary calculi: improved detection and characterization with thin-slice multidetector CT
Etienne Ketelslegers1, Bernard E Van Beers
1Diagnostic Radiology Unit, Cliniques Universitaires St-Luc, Université Catholique de Louvain, Avenue Hippocrate 10, 1200, Brussels, Belgium. vanbeers@rdgn.ucl.ac.be
Abstract:
The aim of this study was to assess the effect of reconstructed slice thickness on the detection and characterization of human urinary calculi on a multidetector helical CT scanner. Nineteen human urinary calculi of various chemical composition measuring 1.0-3.7 mm were embedded into agar in a chamber of a nylon body phantom. The phantom was imaged with a four detector-row CT scanner. The number of detected calculi increased as the reconstructed slice thickness decreased. Measured diameters and density of the visible calculi decreased as the slice thickness increased. The results of the present study support the use of thin reconstructed slices to detect and characterize urinary calculi.
More Related Videos
Related Concept Videos
Urinary Tract Calculi III: Medical Management
Imaging Studies III: Computed Tomography
Imaging Studies V: Intravenous Urography and Retrograde Pyelography
Urinary Tract Calculi I: Introduction
Urinary Tract Calculi V: Nursing Management
Urinary Tract Calculi II: Pathophysiology and Clinical Manifestations
