Reducing beam hardening effects and metal artefacts using Medipix3RX: With applications from biomaterial science

Type of content
Journal Article
Thesis discipline
Degree name
Publisher
University of Canterbury. Biological Sciences
University of Canterbury. Computer Science and Software Engineering
University of Canterbury. Electrical and Computer Engineering
University of Canterbury. Human Interface Technology Laboratory
University of Canterbury. Mathematics and Statistics
University of Canterbury. Mechanical Engineering
University of Canterbury. Physics and Astronomy
University of Canterbury. Biomolecular Interaction Centre
Journal Title
Journal ISSN
Volume Title
Language
Date
2014
Authors
Rajendran, K.
Walsh, M.F.
de Ruiter, N.J.A.
Chernoglazov, A.I.
Panta, R.K.
Butler, A.P.H.
Butler, P.H.
Bell, S.T.
Anderson, N.G.
Woodfield, T.B.F.
Abstract

This paper discusses methods for reducing beam hardening effects using spectral data for biomaterial applications. A small-animal spectral scanner operating in the diagnostic energy range was used. We investigate the use of photon-processing features of the Medipix3RX ASIC in reducing beam hardening and associated artefacts. A fully operational charge summing mode was used during the imaging routine. 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. Narrow high energy acquisition using the photon-processing detector revealed substantial reduction in beam hardening effects and metal artefacts.

Description
Citation
Rajendran, K., Walsh, M.F., de Ruiter, N.J.A., Chernoglazov, A.I., Panta, R.K., Butler, A.P.H., Butler, P.H., Bell, S.T., Anderson, N.G., Woodfield, T.B.F., Tredinnick, S.J., Healy, J.L., Bateman, C.J., Aamir, R., Doesburg, R.M.N., Renaud, P.F., Gieseg, S.P., Smithies, D.J., Mohr, J.L., Mandalika, V.B.H., Opie, A.M.T., Cook, N.J., Ronaldson, J.P., Nik, S.J., Atharifard, A., Clyne, M., Bones, P.J., Bartneck, C., Grasset, R., Schleich, N., Billinghurst, M. (2014) Reducing beam hardening effects and metal artefacts using Medipix3RX: With applications from biomaterial science. Journal of Instrumentation, 9, pp. 1-11.
Keywords
X-ray detectors, Computerized tomography, Image reconstruction
Ngā upoko tukutuku/Māori subject headings
ANZSRC fields of research
Field of Research::11 - Medical and Health Sciences::1103 - Clinical Sciences::110320 - Radiology and Organ Imaging
Fields of Research::32 - Biomedical and clinical sciences::3206 - Medical biotechnology::320602 - Medical biotechnology diagnostics (incl. biosensors)
Fields of Research::40 - Engineering::4003 - Biomedical engineering::400302 - Biomaterials
Fields of Research::40 - Engineering::4003 - Biomedical engineering::400305 - Biomedical instrumentation
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