A Monte Carlo software bench for simulation of spectral k-edge CT imaging: Initial results

Nasirudin, Radin A.; Penchev, Petar; Mei, Kai; Rummeny, Ernst J.; Fiebich, Martin; Noël, Peter B.

doi:10.1016/j.ejmp.2015.03.003

Cited by 8 publications

(2 citation statements)

References 31 publications

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“…Another feasible method is to obtain narrow-energy-width images, which can approximate monochromatic images. It can be accomplished through multienergy imaging, which may require an X-ray photon counting detector [ 11 , 12 ]. Multienergy imaging can be seen an extension of dual-energy CT [ 7 , 13 ].…”

Section: Introductionmentioning

confidence: 99%

Narrow-Energy-Width CT Based on Multivoltage X-Ray Image Decomposition

Wei

Han

Chen

2017

International Journal of Biomedical Imaging

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A polychromatic X-ray beam causes the grey of the reconstructed image to depend on its position within a solid and the material being imaged. This factor makes quantitative measurements via computed tomography (CT) imaging very difficult. To obtain a narrow-energy-width reconstructed image, we propose a model to decompose multivoltage X-ray images into many narrow-energy-width X-ray images by utilizing the low frequency characteristics of X-ray scattering. It needs no change of hardware in the typical CT system. Solving the decomposition model, narrow-energy-width projections are obtained and it is used to reconstruct the image. A cylinder composed of aluminum and silicon is used in a verification experiment. Some of the reconstructed images could be regarded as real narrow-energy-width reconstructed images, which demonstrates the effectiveness of the proposed method.

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Section: Introductionmentioning

confidence: 99%

Narrow-Energy-Width CT Based on Multivoltage X-Ray Image Decomposition

Wei

Han

Chen

2017

International Journal of Biomedical Imaging

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“…Schwerter et al 2016 [7] have proposed an approach for performing a 3D CT data registration to a single interventional native fluoroscopic frame. Nasirudin et al 2015 [8] have presented a Monte Carlo-based simulation of a SCT which has been equipped with a PCD. Yiu et al 2015 [9] have proposed a new pixelbased, high-speed MV beamforming framework intended for performing synthetic aperture imaging for the formation of whole frames of adaptively apodized images at real-time throughputs.…”

Section: Related Workmentioning

confidence: 99%