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Experimental Measurement of Modulation Transfer Function (MTF) in Five Commercial CT Scanners

  • Conference paper
XII Mediterranean Conference on Medical and Biological Engineering and Computing 2010

Part of the book series: IFMBE Proceedings ((IFMBE,volume 29))

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Abstract

The modulation transfer function (MTF) is the technical description of spatial resolution for most imaging systems. the MTF describes how well an imaging system processes signal [1,4]. There are several methods for calculation of MTF that can be categorized in theoretical and experimental methods. In this study, in order to compare the performance of five different commercial CT scanner, an experimental method was used to calculate MTF in all scanners. The MTF curves were calculated for both axial and helical scanning mode and also for different slice thickness. The method for experimental measurement of MTF which called SD method is based on calculation of the standard deviation (SD) of CT numbers in different regions of scanned phantom and determination of coefficient modulation. The results calculated in this study using simple experimental measurements were in good agreement with published technical specification by manufacturers [5].

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Authors and Affiliations

  1. Faculty of Medical Radiation Engineering, Shahid Beheshti University, Tehran, Iran

    S. M. Akbari & A. R. Kamali asl

  2. Research Center for Science and Technology in Medicine, Tehran University of Medical Sciences, Tehran, Iran

    S. M. Akbari, M. R. Ay & H. Ghadiri

  3. Department of Medical Physics and Biomedical Engineering, Tehran University of Medical Sciences, Tehran, Iran

    M. R. Ay

  4. Research Institute for Nuclear Medicine, Tehran University of Medical Sciences, Tehran, Iran

    M. R. Ay

  5. Department of Medical Physics, Iran University of Medical Sciences, Tehran, Iran

    H. Ghadiri

  6. Division of Nuclear Medicine, Geneva University Hospital, Geneva, Switzerland

    H. Zaidi

  7. Geneva Neuroscience Center, Geneva University, Geneva, Switzerland

    H. Zaidi

Authors
  1. S. M. Akbari
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  2. M. R. Ay
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  3. A. R. Kamali asl
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  4. H. Ghadiri
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  5. H. Zaidi
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Editor information

Editors and Affiliations

  1. Lab of Medical Informatics, Medical Scho, Aristotle University of Thessaloniki, 541 24, Thessaloniki, Greece

    Panagiotis D. Bamidis

  2. Biomedical Technology Unit, University of Patras, 265 04, Rio Patras, Greece

    Nicolas Pallikarakis

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© 2010 International Federation for Medical and Biological Engineering

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Akbari, S.M., Ay, M.R., asl, A.R.K., Ghadiri, H., Zaidi, H. (2010). Experimental Measurement of Modulation Transfer Function (MTF) in Five Commercial CT Scanners. In: Bamidis, P.D., Pallikarakis, N. (eds) XII Mediterranean Conference on Medical and Biological Engineering and Computing 2010. IFMBE Proceedings, vol 29. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-13039-7_88

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  • DOI: https://doi.org/10.1007/978-3-642-13039-7_88

  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-642-13038-0

  • Online ISBN: 978-3-642-13039-7

  • eBook Packages: EngineeringEngineering (R0)

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