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METHODS OF DETERMINING THE EFFECTIVE DOSE INDENTAL RADIOLOGY
Department of Medical Physics and Biomedical Engineering, Sahlgrenska University Hospital, SE-413 45.
Östergötlands Läns Landsting, Centre of Surgery and Oncology, Department of Radiation Physics. Linköping University, Department of Medicine and Health Sciences, Radiology . Linköping University, Faculty of Health Sciences.
2010 (English)In: Radiation Protection Dosimetry, ISSN 0144-8420, E-ISSN 1742-3406, Vol. 139, no 1-3, 306-309 p.Article in journal (Refereed) Published
Abstract [en]

A wide variety of X-ray equipment is used today in dental radiology, including intra-oral, orthopantomographic, cephalometric, cone-beam computed tomography (CBCT) and computed tomography (CT). This raises the question of how the radiation risks resulting from different kinds of examinations should be compared. The risk to the patient is usually expressed in terms of the effective dose. However, it is difficult to determine its reliability, and it is difficult to make comparisons, especially when different modalities are used. The classification of the new CBCT units is also problematic as they are sometimes classified as CT units. This will lead to problems in choosing the best dosimetric method, especially when the examination geometry more resembles an ordinary orthopantomographic examination, as the axis of rotation is not at the centre of the patient, and small radiation field sizes are used. The purpose of this study was to present different methods for the estimation of the effective dose from the equipment currently used in dental radiology, and to discuss their limitations. The methods are compared based on common used measurable and computable dose quantities, and their reliability in the estimation of effective dose.

Place, publisher, year, edition, pages
Qxford: Oxford University Press , 2010. Vol. 139, no 1-3, 306-309 p.
Keyword [en]
Effective dose, dental radiology
National Category
Radiology, Nuclear Medicine and Medical Imaging
Identifiers
URN: urn:nbn:se:liu:diva-56759DOI: 10.1093/rpd/ncq081ISI: 000277738200057OAI: oai:DiVA.org:liu-56759DiVA: diva2:321901
Available from: 2010-06-02 Created: 2010-06-02 Last updated: 2010-06-04

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