{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,18]],"date-time":"2026-09-18T03:44:39Z","timestamp":1789703079233,"version":"4.0.1"},"reference-count":17,"publisher":"Wiley","issue":"S1","license":[{"start":{"date-parts":[[2020,6,23]],"date-time":"2020-06-23T00:00:00Z","timestamp":1592870400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["bjui-journals.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["BJU International"],"published-print":{"date-parts":[[2020,9]]},"abstract":"<jats:sec>\n                    <jats:title>Objective<\/jats:title>\n                    <jats:p>To determine the diagnostic accuracy of ultra\u2010low\u2010dose computed tomography (ULDCT) compared with standard\u2010dose CT (SDCT) in the evaluation of patients with clinically suspected renal colic, in addition to secondary features (hydroureteronephrosis, perinephric stranding) and additional pathological entities (renal masses).<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Patients and methods<\/jats:title>\n                    <jats:p>A prospective, comparative cohort study was conducted amongst patients presenting to the emergency department with signs and symptoms suggestive of renal or ureteric colic. Patients underwent both SDCT and ULDCT. Single\u2010blinded review of the image sets was performed independently by three board\u2010certified radiologists.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>Among 21 patients, the effective radiation dose was lower for ULDCT [mean (SD) 1.02\u00a0(0.16)\u00a0mSv] than SDCT [mean (SD) 4.97\u00a0(2.02)\u00a0mSv]. Renal and\/or ureteric calculi were detected in 57.1% (12\/21) of patients. There were no significant differences in calculus detection and size estimation between ULDCT and SDCT. A higher concordance was observed for ureteric calculi (75%) than renal calculi (38%), mostly due to greater detection of calculi of &lt;3\u00a0mm by SDCT. Clinically significant calculi (\u22653\u00a0mm) were detected by ULDCT with high specificity (97.6%) and sensitivity (100%) compared to overall detection (specificity 91.2%, sensitivity 58.8%). ULDCT and SDCT were highly concordant for detection of secondary features, while ULDCT detected less renal cysts of &lt;2\u00a0cm. Inter\u2010observer agreement for the ureteric calculi detection was 93.9% for SDCT and 87.8% for ULDCT.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>ULDCT performed similarly to SDCT for calculus detection and size estimation with reduced radiation exposure. Based on this and other studies, ULDCT should be considered as the first\u2010line modality for evaluation of renal colic in routine practice.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1111\/bju.15116","type":"journal-article","created":{"date-parts":[[2020,6,23]],"date-time":"2020-06-23T04:44:50Z","timestamp":1592887490000},"page":"27-32","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":16,"title":["A prospective, matched comparison of ultra\u2010low and standard\u2010dose computed tomography for assessment of renal colic"],"prefix":"10.1111","volume":"126","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-0552-7402","authenticated-orcid":false,"given":"Matthew J.","family":"Roberts","sequence":"first","affiliation":[{"name":"Nepean Urology Research Group Kingswood NSW Australia"},{"name":"Discipline of Surgery Nepean Clinical School Faculty of Medicine and Health University of Sydney Sydney NSW 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