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dc.contributor.authorZarb, Francis
dc.contributor.authorRainford, Louise
dc.contributor.authorMcEntee, Mark F
dc.date.accessioned2011-05-13T10:47:30Z
dc.date.available2011-05-13T10:47:30Z
dc.date.issued2010
dc.identifier.citationAP diameter shows the strongest correlation with CTDI and DLP in abdominal and chest CT. 2010, 140 (3):266-73 Radiat Prot Dosimetryen
dc.identifier.issn1742-3406
dc.identifier.pmid20332128
dc.identifier.doi10.1093/rpd/ncq115
dc.identifier.urihttp://hdl.handle.net/10147/129519
dc.description.abstractThe purpose of this study is to investigate the relationships among cross-sectional diameters, weight and computed tomography (CT) dose descriptors (CTDI and DLP) to identify which is best used as a measure for the establishment of DRLs in CT. Data (gender, weight, cross-sectional diameters, dose descriptors) from 56 adult patients attending for either a CT examination of the abdomen or chest was obtained from two spiral CT units using automatic milliampere modulation. The AP diameter was demonstrated as the main contributing factor influencing the dose in CT (CTDI: r(2) = 0.269, p-value < or =0.001; DLP: r(2) = 0.260, p-value < or =0.001) since it has a greater correlation with radiation dose than body weight and can thus be its substitute in dose-reduction strategies and establishment of DRLs. The advantages of using the AP diameter are that it can easily be measured prior to scanning or retrospectively from previous CT images. However, further studies on the practicality of this approach are recommended.
dc.language.isoenen
dc.publisherOxford Journalsen
dc.subject.meshAdolescent
dc.subject.meshAdult
dc.subject.meshAged
dc.subject.meshBody Burden
dc.subject.meshComputer Simulation
dc.subject.meshFemale
dc.subject.meshHumans
dc.subject.meshMale
dc.subject.meshMiddle Aged
dc.subject.meshModels, Theoretical
dc.subject.meshRadiation Dosage
dc.subject.meshRadiography, Abdominal
dc.subject.meshRadiography, Thoracic
dc.subject.meshRadiometry
dc.subject.meshStatistics as Topic
dc.titleAP diameter shows the strongest correlation with CTDI and DLP in abdominal and chest CT.en
dc.typeArticleen
dc.contributor.departmentRadiography, Institute of Health Care, University of Malta, Malta. francis.zarb@um.edu.mten
dc.identifier.journalRadiation protection dosimetryen
html.description.abstractThe purpose of this study is to investigate the relationships among cross-sectional diameters, weight and computed tomography (CT) dose descriptors (CTDI and DLP) to identify which is best used as a measure for the establishment of DRLs in CT. Data (gender, weight, cross-sectional diameters, dose descriptors) from 56 adult patients attending for either a CT examination of the abdomen or chest was obtained from two spiral CT units using automatic milliampere modulation. The AP diameter was demonstrated as the main contributing factor influencing the dose in CT (CTDI: r(2) = 0.269, p-value < or =0.001; DLP: r(2) = 0.260, p-value < or =0.001) since it has a greater correlation with radiation dose than body weight and can thus be its substitute in dose-reduction strategies and establishment of DRLs. The advantages of using the AP diameter are that it can easily be measured prior to scanning or retrospectively from previous CT images. However, further studies on the practicality of this approach are recommended.


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