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dc.contributor.authorGislason-Lee, Amber J.*
dc.contributor.authorElbakri, I.A.*
dc.contributor.authorReed, M.*
dc.date.accessioned2019-04-16T10:33:22Z
dc.date.available2019-04-16T10:33:22Z
dc.date.issued2009-03
dc.identifier.citationGislason-Lee, A, Elbakri IA and Reed M (2009) Dose assessment of digital tomosynthesis in pediatric imaging. In: Proceedings SPIE 7258, Medical Imaging. Physics of Medical Imaging. 13 Mar 2009, Lake Buena Vista (Orlando Area), Florida, USA. Society of Photo-Optical Instrumentation Engineers (SPIE).
dc.identifier.urihttp://hdl.handle.net/10454/16967
dc.descriptionYes
dc.description.abstractWe investigated the potential for digital tomosynthesis (DT) to reduce pediatric x-ray dose while maintaining image quality. We utilized the DT feature (VolumeRadTM) on the GE DefiniumTM 8000 flat panel system installed in the Winnipeg Children’s Hospital. Facial bones, cervical spine, thoracic spine, and knee of children aged 5, 10, and 15 years were represented by acrylic phantoms for DT dose measurements. Effective dose was estimated for DT and for corresponding digital radiography (DR) and computed tomography (CT) patient image sets. Anthropomorphic phantoms of selected body parts were imaged by DR, DT, and CT. Pediatric radiologists rated visualization of selected anatomic features in these images. Dose and image quality comparisons between DR, DT, and CT determined the usefulness of tomosynthesis for pediatric imaging. CT effective dose was highest; total DR effective dose was not always lowest – depending how many projections were in the DR image set. For the cervical spine, DT dose was close to and occasionally lower than DR dose. Expert radiologists rated visibility of the central facial complex in a skull phantom as better than DR and comparable to CT. Digital tomosynthesis has a significantly lower dose than CT. This study has demonstrated DT shows promise to replace CT for some facial bones and spinal diagnoses. Other clinical applications will be evaluated in the future.
dc.description.sponsorshipMedical Physics Division at CancerCare Manitoba and GE Healthcare (Waukesha, WI).
dc.language.isoenen
dc.rights© 2015, Society of Photo-Optical Instrumentation Engineers (SPIE). This is an author produced version of a paper published in Proceedings SPIE 7258, Medical Imaging. Physics of Medical Imaging.
dc.subjectDigital tomosynthesis
dc.subjectX-ray
dc.subjectEffective dose
dc.subjectPediatric
dc.subjectALARA
dc.subjectDigital radiography
dc.titleDose assessment of digital tomosynthesis in pediatric imaging
dc.status.refereedYes
dc.date.Accepted2009
dc.date.application2009-03
dc.typeConference paper
dc.type.versionAccepted manuscript
dc.identifier.doihttps://doi.org/10.1117/12.813717
refterms.dateFOA2019-04-16T10:33:22Z


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