Abstract

To evaluate the number of dimensions of obstructing ureteral stones in the emergency department (ED) described in present-day radiology computed tomography reports and assess for measurement discrepancies between radiologist and urologist review. We conducted a single-center retrospective study of patients who presented to the ED with unilateral, solitary, obstructing ureteral stones from March 2018 to March 2021. Stone size in each reported dimension recorded by the radiologist was extracted from the chart and then compared to size independently measured by one of our urologists for all 3 stone dimensions. Our primary outcome was the number of stone dimensions included in the radiology report. In total, 181 patients were included for analysis. 82.3% of radiology reports described the stone in one dimension, 15% in two dimensions, and 2.7% in three dimensions. There was a significant difference in median maximal stone size between radiologist and urologist measurement (5.5 vs 6.5 mm, respectively, P < .001). One hundred fourteen stones (62%) had the maximal measurement recorded in the craniocaudal (CC) dimension by urologist review. Only 26% of radiology reports had the CC measurement included in the radiology report. Ureteral stone size in a present-day ED cohort is still frequently measured in only 1 or 2 dimensions. In many cases, this is associated with an absence of a reported CC measurement. Inadequate characterization of stone size may affect acute management. This study hopes to encourage reporting of all three dimensions of obstructing ureteral stones in the ED setting for improvements in patient management.

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