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Innovative method for objective evaluations of the quality of CT systems.

In: Proceedings (World Congress on Medical Physics and Biomedical Engineering, September 7 - 12, 2009, Munich, Germany). Berlin: Springer, 2009. 421-424 (IFMBE Proceedings ; 25/II)
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An innovative method is presented that allows an objective and quantitative determination of quality parameters in computed tomography (CT). In contrast to projection radiography, the image quality parameters of a CT system is not only affected by the performance of the detector alone but additionally by the geometrical alignment of source-object-detector and the combination of numerous single raw exposure frames to one image using a specific reconstruction algorithm. Our scientific objective is to separate the effects of detector and image reconstruction algorithm on the performance of a CT. We focus here on the determination of the Modulation Transfer Function (MTF) and Noise Power Spectrum (NPS) of raw data and CT image.
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Publikationstyp Artikel: Konferenzbeitrag
Schlagwörter computed tomography (CT); quality assurance; MTF; NPS; image reconstruction
ISBN 978-3-642-03878-5
Konferenztitel World Congress on Medical Physics and Biomedical Engineering, September 7 - 12, 2009, Munich, Germany
Konferenzband Proceedings
Quellenangaben Band: 25/II, Heft: , Seiten: 421-424 Artikelnummer: , Supplement: ,
Reihe IFMBE Proceedings
Verlag Springer
Verlagsort Berlin