Quantification of asymptomatic kidney stone burden by computed tomography for predicting future symptomatic stone events.

ABSTRACT:

Objective

To find the optimal characterization of asymptomatic radiographic stone burden on computed tomography (CT) scans.

Methods

A survey was sent to stone formers who underwent a CT scan while asymptomatic during a stone clinic evaluation. Symptomatic stone passage events after CT scan were detected by survey and medical record review. Radiographic stone burden was quantified by number of stones, largest stone diameter, automated total stone volume (TSV), and bilateral stones and then compared as predictors of stone events.

Results

There were 550 stone formers; 43% had a stone event for a median of 4.7 years after the CT scan. Stone burden by quartiles was 0-1, 2-3, 4-6, and ≥7 for number of stones; 0-2, 3-4, 5-7, and ≥8 mm for largest stone diameter; and 0-8, 9-7

SUBMITTER: Selby MG 

PROVIDER: S-EPMC4275381 | biostudies-literature | 2015 Jan

REPOSITORIES: biostudies-literature