15 September 2008 Quality assessment of clinical computed tomography
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Three-dimensional images are vital for the diagnosis in dentistry and cranio-maxillofacial surgery. Artifacts caused by highly absorbing components such as metallic implants, however, limit the value of the tomograms. The dominant artifacts observed are blowout and streaks. Investigating the artifacts generated by metallic implants in a pig jaw, the data acquisition for the patients in dentistry should be optimized in a quantitative manner. A freshly explanted pig jaw including related soft-tissues served as a model system. Images were recorded varying the accelerating voltage and the beam current. The comparison with multi-slice and micro computed tomography (CT) helps to validate the approach with the dental CT system (3D-Accuitomo, Morita, Japan). The data are rigidly registered to comparatively quantify their quality. The micro CT data provide a reasonable standard for quantitative data assessment of clinical CT.
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Dorothea Berndt, Dorothea Berndt, Marlen Luckow, Marlen Luckow, J. Thomas Lambrecht, J. Thomas Lambrecht, Felix Beckmann, Felix Beckmann, Bert Müller, Bert Müller, } "Quality assessment of clinical computed tomography", Proc. SPIE 7078, Developments in X-Ray Tomography VI, 70780N (15 September 2008); doi: 10.1117/12.794683; https://doi.org/10.1117/12.794683


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