Cumulative radiation exposure from diagnostic imaging in intensive care unit patients.

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dc.contributor.authorMoloney, Fiachra
dc.contributor.authorFama, Daniel
dc.contributor.authorTwomey, Maria
dc.contributor.authorO'Leary, Ruth
dc.contributor.authorHoulihane, Conor
dc.contributor.authorMurphy, Kevin P.
dc.contributor.authorO'Neill, Siobhán B.
dc.contributor.authorO'Connor, Owen J.
dc.contributor.authorBreen, Dorothy
dc.contributor.authorMaher, Michael M.
dc.date.accessioned2018-04-25T14:27:28Z
dc.date.available2018-04-25T14:27:28Z
dc.date.issued2016-04-28
dc.date.updated2018-04-23T16:26:44Z
dc.description.abstractAIM: To quantify cumulative effective dose of intensive care unit (ICU) patients attributable to diagnostic imaging. METHODS: This was a prospective, interdisciplinary study conducted in the ICU of a large tertiary referral and level 1 trauma center. Demographic and clinical data including age, gender, date of ICU admission, primary reason for ICU admission, APACHE II score, length of stay, number of days intubated, date of death or discharge, and re-admission data was collected on all patients admitted over a 1-year period. The overall radiation exposure was quantified by the cumulative effective radiation dose (CED) in millisieverts (mSv) and calculated using reference effective doses published by the United Kingdom National Radiation Protection Board. Pediatric patients were selected for subgroup-analysis. RESULTS: A total of 2737 studies were performed in 421 patients. The total CED was 1704 mSv with a median CED of 1.5 mSv (IQR 0.04-6.6 mSv). Total CED in pediatric patients was 74.6 mSv with a median CED of 0.07 mSv (IQR 0.01-4.7 mSv). Chest radiography was the most commonly performed examination accounting for 83% of all studies but only 2.7% of total CED. Computed tomography (CT) accounted for 16% of all studies performed and contributed 97% of total CED. Trauma patients received a statistically significant higher dose [median CED 7.7 mSv (IQR 3.5-13.8 mSv)] than medical [median CED 1.4 mSv (IQR 0.05-5.4 mSv)] and surgical [median CED 1.6 mSv (IQR 0.04-7.5 mSv)] patients. Length of stay in ICU [OR = 1.12 (95%CI: 1.079-1.157)] was identified as an independent predictor of receiving a CED greater than 15 mSv. CONCLUSION: Trauma patients and patients with extended ICU admission times are at increased risk of higher CEDs. CED should be minimized where feasible, especially in young patients.en
dc.description.statusPeer revieweden
dc.description.versionPublished Versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.citationMoloney, F., Fama, D., Twomey, M., O'Leary, R., Houlihan,e C., Murphy, K. P., O’Neill S. B., O’Connor, O. J., Breen, D. and Maher, M. M. (2016) 'Cumulative radiation exposure from diagnostic imaging in intensive care unit patients', World Journal of Radiology, 8(4) pp. 419-427. doi: 10.4329/wjr.v8.i4.419en
dc.identifier.doi10.4329/wjr.v8.i4.419
dc.identifier.endpage427en
dc.identifier.issn1949-8470
dc.identifier.issued8en
dc.identifier.journaltitleWorld Journal of Radiology : WJRen
dc.identifier.startpage419en
dc.identifier.urihttps://hdl.handle.net/10468/5875
dc.identifier.volume8en
dc.language.isoenen
dc.publisherBaishideng Publishing Groupen
dc.rights© The Author(s) 2016. Published by Baishideng Publishing Group Inc. All rights reserved. This article is an open-access article which was selected by an in-house editor and fully peer-reviewed by external reviewers. It is distributed in accordance with the Creative Commons Attribution Non Commercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited and the use is non-commercial. See: http://creativecommons.org/licenses/by-nc/4.0/en
dc.rights.urihttp://creativecommons.org/licenses/by-nc/4.0/en
dc.subjectCumulative effective doseen
dc.subjectPediatric patientsen
dc.subjectComputed tomographyen
dc.subjectRadiation doseen
dc.subjectIntensive care uniten
dc.titleCumulative radiation exposure from diagnostic imaging in intensive care unit patients.en
dc.typeArticle (peer-reviewed)en
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