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Conference Paper: An inconvenient truth: our routine imaging pathway for loin pain resulted in superfluous radiation exposure

TitleAn inconvenient truth: our routine imaging pathway for loin pain resulted in superfluous radiation exposure
Authors
Issue Date2014
PublisherWiley-Blackwell Publishing Ltd. The Journal's web site is located at http://www.bjui.org/
Citation
Hong Kong Urological Association Annual Scientific Meeting, Hong Kong, 10 November 2013. In BJU International, 2014, v. 113 n. Suppl. S1, p. 9-10 How to Cite?
AbstractObjective: To determine the accuracy of planar radiography of kidney, ureters and bladder (KUB) in detection of urolithiasis when employed as the first-line investigation for loin pain. To put forward recommendations which would reduce the average radiation exposure. Patients & Methods: A retrospective review was performed for patients admitted between January 2011 and February 2012 to two acute hospitals on the Hong Kong Island, who had both KUB and non-contrast computed tomography (NCCT) performed for the investigation of loin pain. The accuracy of KUB was determined using NCCT as the gold standard. Results: Urolithiasis was detected on NCCT in 458 patients out of 891 patients evaluated. The sensitivity, specificity, positive predictive value and negative predictive value of KUB were 46.9%, 95.8%, 92.3% and 63.1% respectively. In in-patient setting, if NCCT was employed as the first-line investigation, omission of KUB in patients with no urolithiasis would result in 4.4% reduction in radiation exposure. In out-patient setting, if KUB was employed as the first-line investigation, the high positive predictive value would justify non-invasive stone management without confirmation by NCCT. The omission of NCCT resulted in 23.8% reduction in radiation exposure. Conclusion: KUB had low sensitivity, but high positive predictive value for the detection of urolithiasis. Targeted and judicious employment of imaging modality reduced radiation exposure.
DescriptionModerated Poster Presentation
Persistent Identifierhttp://hdl.handle.net/10722/193965
ISSN
2015 Impact Factor: 4.387
2015 SCImago Journal Rankings: 2.009

 

DC FieldValueLanguage
dc.contributor.authorKan, RWMen_US
dc.contributor.authorLi, JCMen_US
dc.contributor.authorFu, KFKen_US
dc.contributor.authorHo, KLen_US
dc.contributor.authorYiu, MKen_US
dc.contributor.authorFan, CWen_US
dc.date.accessioned2014-01-28T06:38:22Z-
dc.date.available2014-01-28T06:38:22Z-
dc.date.issued2014en_US
dc.identifier.citationHong Kong Urological Association Annual Scientific Meeting, Hong Kong, 10 November 2013. In BJU International, 2014, v. 113 n. Suppl. S1, p. 9-10en_US
dc.identifier.issn1464-4096-
dc.identifier.urihttp://hdl.handle.net/10722/193965-
dc.descriptionModerated Poster Presentation-
dc.description.abstractObjective: To determine the accuracy of planar radiography of kidney, ureters and bladder (KUB) in detection of urolithiasis when employed as the first-line investigation for loin pain. To put forward recommendations which would reduce the average radiation exposure. Patients & Methods: A retrospective review was performed for patients admitted between January 2011 and February 2012 to two acute hospitals on the Hong Kong Island, who had both KUB and non-contrast computed tomography (NCCT) performed for the investigation of loin pain. The accuracy of KUB was determined using NCCT as the gold standard. Results: Urolithiasis was detected on NCCT in 458 patients out of 891 patients evaluated. The sensitivity, specificity, positive predictive value and negative predictive value of KUB were 46.9%, 95.8%, 92.3% and 63.1% respectively. In in-patient setting, if NCCT was employed as the first-line investigation, omission of KUB in patients with no urolithiasis would result in 4.4% reduction in radiation exposure. In out-patient setting, if KUB was employed as the first-line investigation, the high positive predictive value would justify non-invasive stone management without confirmation by NCCT. The omission of NCCT resulted in 23.8% reduction in radiation exposure. Conclusion: KUB had low sensitivity, but high positive predictive value for the detection of urolithiasis. Targeted and judicious employment of imaging modality reduced radiation exposure.-
dc.languageengen_US
dc.publisherWiley-Blackwell Publishing Ltd. The Journal's web site is located at http://www.bjui.org/-
dc.relation.ispartofBJU Internationalen_US
dc.rightsThe definitive version is available at www3.interscience.wiley.com-
dc.titleAn inconvenient truth: our routine imaging pathway for loin pain resulted in superfluous radiation exposureen_US
dc.typeConference_Paperen_US
dc.identifier.emailHo, KL: hkl218@hkucc.hku.hken_US
dc.identifier.emailYiu, MK: pmkyiu@hku.hken_US
dc.identifier.doi10.1111/bju.12606-
dc.identifier.hkuros227505en_US
dc.identifier.volume113-
dc.identifier.issueSuppl. S1-
dc.identifier.spage9-
dc.identifier.epage10-
dc.publisher.placeUnited Kingdom-

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