U.S., Jan. 14 -- ClinicalTrials.gov registry received information related to the study (NCT07337954) titled '3D-CT vs Ellipsoid for JJ Stent Prediction Before ESWL' on Dec. 26, 2025.
Brief Summary: This prospective single-center study compares 3D-CT volumetry versus traditional ellipsoid formula to determine critical stone burden predicting JJ stent necessity before ESWL for 1-2 cm renal stones. Fifty-six patients with single radio-opaque renal stones will receive up to two ESWL sessions using Dornier lithotripter without initial stenting. Stone characteristics will be assessed via NCCT: linear dimensions (ellipsoid formula), 3D volume (voxel-based segmentation), Hounsfield units, and skin-to-stone distance. Patients will be stratified by ...