Mr. Samuel M. Johnston Profile

KEYWORDS: X-rays, Luminescence, X-ray imaging, Preclinical imaging, X-ray optics, Imaging systems, X-ray computed tomography, Cameras, Sensors, Molecular imaging

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Proceedings Article | 16 March 2011 Paper

Dual-energy micro-CT imaging for differentiation of iodine- and gold-based nanoparticles

C. Badea, S. Johnston, Y. Qi, K. Ghaghada, G. Johnson

Proceedings Volume 7961, 79611X (2011) https://doi.org/10.1117/12.878043

KEYWORDS: Gold, Dual energy imaging, Nanoparticles, X-rays, Signal attenuation, Iodine, Tumors, Blood, In vivo imaging, Computed tomography

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Proceedings Article | 16 March 2011 Paper

Temporal and spectral reconstruction algorithms for x-ray CT

S. Johnston, C. Badea

Proceedings Volume 7961, 79611U (2011) https://doi.org/10.1117/12.878107

KEYWORDS: Reconstruction algorithms, X-rays, Signal attenuation, Sensors, Algorithm development, Photons, X-ray imaging, Iodine, Computer simulations, X-ray computed tomography

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Proceedings Article | 23 March 2010 Paper

Phase-selective image reconstruction of the lungs in small animals using micro-CT

S. Johnston, B. Perez, D. Kirsch, C. Badea

Proceedings Volume 7622, 76223G (2010) https://doi.org/10.1117/12.844359

KEYWORDS: Reconstruction algorithms, Lung, Tumors, In vivo imaging, Image restoration, Image analysis, Signal attenuation, Image quality, Lung cancer, Cardiac imaging

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Proceedings Article | 23 March 2010 Paper

GPU-based iterative reconstruction with total variation minimization for micro-CT

S. Johnston, G. Johnson, C. Badea

Proceedings Volume 7622, 762238 (2010) https://doi.org/10.1117/12.844368

KEYWORDS: Reconstruction algorithms, Sensors, In vivo imaging, Stereolithography, Denoising, X-rays, X-ray sources, Virtual reality, Computer simulations, Computer architecture

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Proceedings Article | 14 March 2009 Paper

A material decomposition method for dual energy micro-CT

S. Johnston, G. Johnson, C. Badea

Proceedings Volume 7258, 725841 (2009) https://doi.org/10.1117/12.811673

KEYWORDS: X-rays, Signal attenuation, Blood, Tissues, Reconstruction algorithms, Lung, Tumors, Sensors, Copper, In vivo imaging

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Proceedings Article | 13 March 2009 Paper

4D micro-CT-based perfusion imaging in small animals

C. Badea, S. Johnston, M. Lin, L. Hedlund, G. Johnson

Proceedings Volume 7258, 72582T (2009) https://doi.org/10.1117/12.811213

KEYWORDS: Lung, Reconstruction algorithms, Imaging systems, Preclinical imaging, Temporal resolution, X-rays, Signal attenuation, In vivo imaging, LabVIEW, Tumors

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Proceedings Article | 18 March 2008 Paper

A dual micro-CT system for small animal imaging

C. Badea, S. Johnston, B. Johnson, M. Lin, L. Hedlund, G. Allan Johnson

Proceedings Volume 6913, 691342 (2008) https://doi.org/10.1117/12.772303

KEYWORDS: Imaging systems, Sensors, Calibration, Modulation transfer functions, Iodine, X-rays, Image quality, Spatial resolution, Preclinical imaging, In vivo imaging

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Showing 5 of 12 publications

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