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Project

Optimisation of cone beam computed tomography for dentomaxillofacial applications

This doctoral project attempts to find an optimal balance between the radiation dose and image quality for dental Cone Beam CT (CBCT). Therefore, the project consists of two parts. In a first part, a correct description and quantification of the radiation dose is investigated, using different methods: measurements on (adult and paediatric) anthropomorphic and cylindrical phantoms using thermoluminescent dosimeters (TLDs) and ion chambers, TLD skin measurements on patients, and dose-area product (DAP) measurements. Also, the correlation with dose simulations, which will be performed in a parallel running project, will aid in a correct estimation of patient dose.
In the second part of the project, the image quality of CBCT images is tested by means of a quality control phantom. This phantom will be developed during the course of project and perfected in a number of stadia.
Eventually, the two projects will be brought together, analysing the image quality as a function of the corresponding radiation dose, and the link will be made with diagnostic requirements for different groups of patients.
Date:1 Jan 2008 →  5 Jul 2012
Keywords:Cone Beam CT, Image quality, Radiation dose
Disciplines:Dentistry
Project type:PhD project