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Spectroscopic biomedical imaging with the Medipix2 detector

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Abstract

This study confirms that the Medipix2 x-ray detector enables spectroscopic bio-medical plain radiography. We show that the detector has the potential to provide new, useful information beyond the limited spectroscopic information of modern dual-energy computed tomography (CT) scanners. Full spectroscopic 3D-imaging is likely to be the next major technological advance in computed tomography, moving the modality towards molecular imaging applications. This paper focuses on the enabling technology which allows spectroscopic data collection and why this information is useful. In this preliminary study we acquired the first spectroscopic images of human tissue and other biological samples obtained using the Medipix2 detector. The images presented here include the clear resolution of the 1.4mm long distal phalanx of a 20-week-old miscarried foetus, showing clear energy-dependent variations. The opportunities for further research using the forthcoming Medipix3 detector are discussed and a prototype spectroscopic CT scanner (MARS, Medipix All Resolution System) is briefly described.

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Authors and Affiliations

  1. Physics and Astronomy, University of Canterbury, Christchurch, New Zealand

    T. R. Melzer, A. P. Butler, R. Watts & P. H. Butler

  2. Christchurch Medical School, University of Otago, Christchurch, New Zealand

    T. R. Melzer, A. P. Butler & N. Anderson

  3. Canterbury District Health Board, Christchurch, New Zealand

    N. J. Cook & R. Tipples

  4. Electrical and Computer Engineering, University of Canterbury, Christchurch, New Zealand

    A. P. Butler

  5. European Organisation for Nuclear Research, Geneva, Switzerland

    A. P. Butler & P. H. Butler

Authors
  1. T. R. Melzer
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  2. N. J. Cook
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  3. A. P. Butler
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  4. R. Watts
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  5. N. Anderson
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  6. R. Tipples
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  7. P. H. Butler
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Correspondence to A. P. Butler.

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Melzer, T.R., Cook, N.J., Butler, A.P. et al. Spectroscopic biomedical imaging with the Medipix2 detector. Australas. Phys. Eng. Sci. Med. 31, 300–306 (2008). https://doi.org/10.1007/BF03178599

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  • DOI: https://doi.org/10.1007/BF03178599

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