Conor Kennedy

University College Cork

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Niamh Moore

University College Cork

Richard G. Kavanagh

Cork University Hospital

Brian W. Carey

Cork University Hospital

Ernest Ekpo

University of Sydney

Owen J. O’ Connor

University College Cork

Michael Maher

Mater Misericordiae University Hospital

B. Normoyle

Cork University Hospital

Owen J. O’Connor

University College Cork

Mark F. McEntee

University College Cork

Tyler M. Grey

University of Toronto

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Cork University Hospital

Mercy University Hospital

APC Microbiome Institute

Mater Misericordiae University Hospital

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Massachusetts General Hospital

Harvard University

University of Sydney

Creative Research Enterprises (United States)

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Body mass index- based estimation of individualized patient radiation doses during abdominal CT

Brian W. Carey Conor Kennedy Richard G. Kavanagh Niamh Moore Michael Maher

Poster: EuroSafe Imaging 2019 / ESI-0022 / Body mass index- based estimation of individualized patient radiation doses during abdominal CT by: B. Carey1, C. Kennedy1, R. Kavanagh2, N. Moore2, M. A. Maher1, O. O’Connor1, S. O'Neill3; 1 Cork/IE, 2Cork University Hospital Cork/IE, 3University College Cork Cork/IE

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Radiation dose tracking in computed tomography: Red alerts and feedback. Implementing a radiation dose alert system in CT

Radiography (2020)

Claire Crowley Ernest Ekpo Brian W. Carey Stella Joyce Conor Kennedy

IntroductionThis study investigates instances of elevated radiation dose on a radiation tracking system to determine their aetiologies. It aimed to investigate the impact of radiographer feedback on these alerts.MethodsOver two six-month periods 11,298 CT examinations were assessed using DoseWatch. Red alerts (dose length products twice the median) were identified and two independent reviewers established whether alerts were true (unjustifiable) or false (justifiable). During the second time period radiographers used a feedback tool to state the cause of the alert. A Chi–Square test was used to assess whether red alert incidence decreased following the implementation of radiographer feedback.ResultsThere were 206 and 357 alerts during the first and second time periods, respectively. These occurred commonly with CT pulmonary angiography, brain, and body examinations. Procedural documentation errors and patient size accounted for 57% and 43% of false alerts, respectively. Radiographer feedback was provided for 17% of studies; this was not associated with a significant change in the number of alerts, but the number of true alerts declined (from 7 to 3) (χ2 = 4.14; p = 0.04).ConclusionProcedural documentation errors as well as patient-related factors are associated with false alerts in DoseWatch. Implementation of a radiographer feedback tool reduced true alerts.Implications for practiceThe implementation of a radiographer feedback tool reduced the rate of true dose alerts. Low uptake with dose alert systems is an issue; the workflow needs to be considered to address this.

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10.1016/j.radi.2020.06.004

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