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

K. Rajendran; M. F. Walsh; N. J.A. De Ruiter; A. I. Chernoglazov; R. K. Panta; A. P.H. Butler; P. H. Butler; S. T. Bell; N. G. Anderson; T. B.F. Woodfield; S. J. Tredinnick; J. L. Healy; C. J. Bateman; R. Aamir; R. M.N. Doesburg; P. F. Renaud; S. P. Gieseg; D. J. Smithies; J. L. Mohr; V. B.H. Mandalika; A. M.T. Opie; N. J. Cook; J. P. Ronaldson; S. J. Nik; A. Atharifard; M. Clyne; P. J. Bones; C. Bartneck; R. Grasset; N. Schleich; M. Billinghurst

doi:10.1088/1748-0221/9/03/P03015

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

K. Rajendran, M. F. Walsh, N. J.A. De Ruiter, A. I. Chernoglazov, R. K. Panta, A. P.H. Butler, P. H. Butler, S. T. Bell, N. G. Anderson, T. B.F. Woodfield, S. J. Tredinnick, J. L. Healy, C. J. Bateman, R. Aamir, R. M.N. Doesburg, P. F. Renaud, S. P. Gieseg, D. J. Smithies, J. L. Mohr, V. B.H. MandalikaA. M.T. Opie, N. J. Cook, J. P. Ronaldson, S. J. Nik, A. Atharifard, M. Clyne, P. J. Bones, C. Bartneck, R. Grasset, N. Schleich, M. Billinghurst

Radiology

Research output: Contribution to journal › Article › peer-review

Abstract

This 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 are 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 made available (http://hdl.handle.net/10092/8851) for testing with other software routines.

Original language	English (US)
Article number	P03015
Journal	Journal of Instrumentation
Volume	9
Issue number	3
DOIs	https://doi.org/10.1088/1748-0221/9/03/P03015
State	Published - Mar 2014

Keywords

Computerized Tomography (CT) and Computed Radiography (CR)
Medical-image reconstruction methods and algorithms, computer-aided diagnosis
X-ray detectors

ASJC Scopus subject areas

Instrumentation
Mathematical Physics

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10.1088/1748-0221/9/03/P03015

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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., ... Billinghurst, M. (2014). Reducing beam hardening effects and metal artefacts in spectral CT using Medipix3RX. Journal of Instrumentation, 9(3), Article P03015. https://doi.org/10.1088/1748-0221/9/03/P03015

Rajendran, K, Walsh, MF, De Ruiter, NJA, Chernoglazov, AI, Panta, RK, Butler, APH, Butler, PH, Bell, ST, Anderson, NG, Woodfield, TBF, Tredinnick, SJ, Healy, JL, Bateman, CJ, Aamir, R, Doesburg, RMN, Renaud, PF, Gieseg, SP, Smithies, DJ, Mohr, JL, Mandalika, VBH, Opie, AMT, Cook, NJ, Ronaldson, JP, Nik, SJ, Atharifard, A, Clyne, M, Bones, PJ, Bartneck, C, Grasset, R, Schleich, N & Billinghurst, M 2014, 'Reducing beam hardening effects and metal artefacts in spectral CT using Medipix3RX', Journal of Instrumentation, vol. 9, no. 3, P03015. https://doi.org/10.1088/1748-0221/9/03/P03015

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title = "Reducing beam hardening effects and metal artefacts in spectral CT using Medipix3RX",

abstract = "This 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 are 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 made available (http://hdl.handle.net/10092/8851) for testing with other software routines.",

keywords = "Computerized Tomography (CT) and Computed Radiography (CR), Medical-image reconstruction methods and algorithms, computer-aided diagnosis, X-ray detectors",

author = "K. Rajendran and Walsh, {M. F.} and {De Ruiter}, {N. J.A.} and Chernoglazov, {A. I.} and Panta, {R. K.} and Butler, {A. P.H.} and Butler, {P. H.} and Bell, {S. T.} and Anderson, {N. G.} and Woodfield, {T. B.F.} and Tredinnick, {S. J.} and Healy, {J. L.} and Bateman, {C. J.} and R. Aamir and Doesburg, {R. M.N.} and Renaud, {P. F.} and Gieseg, {S. P.} and Smithies, {D. J.} and Mohr, {J. L.} and Mandalika, {V. B.H.} and Opie, {A. M.T.} and Cook, {N. J.} and Ronaldson, {J. P.} and Nik, {S. J.} and A. Atharifard and M. Clyne and Bones, {P. J.} and C. Bartneck and R. Grasset and N. Schleich and M. Billinghurst",

year = "2014",

month = mar,

doi = "10.1088/1748-0221/9/03/P03015",

language = "English (US)",

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T1 - Reducing beam hardening effects and metal artefacts in spectral CT using Medipix3RX

AU - Rajendran, K.

AU - Walsh, M. F.

AU - De Ruiter, N. J.A.

AU - Chernoglazov, A. I.

AU - Panta, R. K.

AU - Butler, A. P.H.

AU - Butler, P. H.

AU - Bell, S. T.

AU - Anderson, N. G.

AU - Woodfield, T. B.F.

AU - Tredinnick, S. J.

AU - Healy, J. L.

AU - Bateman, C. J.

AU - Aamir, R.

AU - Doesburg, R. M.N.

AU - Renaud, P. F.

AU - Gieseg, S. P.

AU - Smithies, D. J.

AU - Mohr, J. L.

AU - Mandalika, V. B.H.

AU - Opie, A. M.T.

AU - Cook, N. J.

AU - Ronaldson, J. P.

AU - Nik, S. J.

AU - Atharifard, A.

AU - Clyne, M.

AU - Bones, P. J.

AU - Bartneck, C.

AU - Grasset, R.

AU - Schleich, N.

AU - Billinghurst, M.

PY - 2014/3

Y1 - 2014/3

N2 - This 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 are 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 made available (http://hdl.handle.net/10092/8851) for testing with other software routines.

AB - This 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 are 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 made available (http://hdl.handle.net/10092/8851) for testing with other software routines.

KW - Computerized Tomography (CT) and Computed Radiography (CR)

KW - Medical-image reconstruction methods and algorithms, computer-aided diagnosis

KW - X-ray detectors

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AN - SCOPUS:84898848006

SN - 1748-0221

VL - 9

JO - Journal of Instrumentation

JF - Journal of Instrumentation

IS - 3

M1 - P03015

ER -

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

Abstract

Keywords

ASJC Scopus subject areas

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