Reducing beam hardening effects and metal artefacts in spectral CT using Medipix3RX

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dc.contributor.authorRajendran, K
dc.contributor.authorWalsh, M. F.
dc.contributor.authorde Ruiter, N. J. A.
dc.contributor.authorChernoglazov, A. I.
dc.contributor.authorPanta, R. K.
dc.contributor.authorButler, P. H.
dc.contributor.authorBell, S. T.
dc.contributor.authorWoodfield, T. B. F.
dc.contributor.authorTredinnick, J.
dc.contributor.authorHealy, J. L.
dc.contributor.authorBateman, C. J.
dc.contributor.authorAamir, R.
dc.contributor.authorDoesburg, R. M. N.
dc.contributor.authorRenaud, P. F.
dc.contributor.authorGieseg, S. P.
dc.contributor.authorSmithies, D. J.
dc.contributor.authorMohr, J. L.
dc.contributor.authorMandalika, V. B. H.
dc.contributor.authorOpie, A. M. T.
dc.contributor.authorCook, N. J.
dc.contributor.authorRonaldson, J. P.
dc.contributor.authorNik, S. J.
dc.contributor.authorAtharifard, A.
dc.contributor.authorClyne, M.
dc.contributor.authorBones, P. J.
dc.contributor.authorBartneck, Christoph
dc.contributor.authorGrasset, R.
dc.contributor.authorSchleich, N.
dc.contributor.authorBillinghurst, Mark
dc.contributor.authorButler, A. P. H.
dc.contributor.authorAnderson, N. G.
dc.date.accessioned2013-10-30T21:23:12Zen
dc.date.accessioned2014-02-05T03:27:19Z
dc.date.available2013-10-30T21:23:12Zen
dc.date.available2014-02-05T03:27:19Z
dc.date.issued2014-02-05en
dc.descriptionDICOM Raw Data, with explanatory text files.en
dc.description.abstractThis paper discusses methods for reducing beam hardening effects and metal artefacts using spectral x-ray information in biomaterial samples. A small-animal spectral scanner was operated in the 15 to 80 keV x-ray energy range for this study. We use the photon-processing features of a CdTe-Medipix3RX ASIC in charge summing mode to reduce beam hardening and associated artefacts. We present spectral data collected for metal alloy samples, its analysis using algebraic 3D reconstruction software and volume visualisation using a custom volume rendering software. The cupping effect and streak artefacts were quantified in the spectral datasets. The results show reduction in beam hardening effects and metal artefacts in the narrow high energy range acquired using the spectroscopic detector. A post-reconstruction comparison between CdTe-Medipix3RX and Si-Medipix3.1 is discussed. The raw data and processed data are openly available for testing with other software routines.en
dc.identifier.doihttps://doi.org/10.1088/1748-0221/9/03/P03015
dc.identifier.urihttp://hdl.handle.net/10092/8851
dc.language.isoen
dc.relation.replaceshttp://hdl.handle.net/10092/8531
dc.relation.replaceshttp://hdl.handle.net/10092/8627
dc.relation.urihttp://arxiv.org/abs/1311.4528en
dc.relation.urihttp://iopscience.iop.org/1748-0221/9/03/P03015/
dc.titleReducing beam hardening effects and metal artefacts in spectral CT using Medipix3RXen
dc.typeOther
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