Does volume matter? Incorporating estimated stone volume in a nomogram to predict ureteral stone passage

Recent studies have shown that software-generated 3D stone volume calculations are better predictors of stone burden than measured maximal axial stone diameter. However, no studies have assessed the role of formula estimated stone volume, a more practical and less expensive alternative to software calculations, to predict spontaneous stone passage (SSP).We retrospectively included patients discharged from our emergency department on conservative...