Mr. Kevin L. Royalty Profile

Kevin L. Royalty

Director of Research Collaborations at Siemens Healthineers

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Author

Publications (10)

Proceedings Article | 22 March 2016 Paper

C-arm cone beam CT perfusion imaging using the SMART-RECON algorithm to improve temporal sampling density and temporal resolution

Yinsheng Li, Kai Niu, Ke Li, Sebastian Schafer, Kevin Royalty, Charles Strother, Guang-Hong Chen

Proceedings Volume 9783, 97830U (2016) https://doi.org/10.1117/12.2216838

KEYWORDS: Reconstruction algorithms, Temporal resolution, Algorithm development, Computer simulations, In vivo imaging, Computed tomography, Tomography, Image restoration, Denoising, Imaging systems, Tissues, X-ray computed tomography, Blood, Brain mapping, Brain

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SPIE Journal Paper | 25 January 2016 Open Access

Volumetric limiting spatial resolution analysis of four-dimensional digital subtraction angiography

Brian Davis, Erick Oberstar, Kevin Royalty, Sebastian Schafer, Charles Mistretta

JMI, Vol. 3, Issue 01, 013503, (January 2016) https://doi.org/10.1117/12.10.1117/1.JMI.3.1.013503

KEYWORDS: Spatial resolution, 3D image processing, Modulation transfer functions, Angiography, Spatial frequencies, Temporal resolution, 3D image reconstruction, Point spread functions, 3D acquisition, Medical imaging

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Proceedings Article | 20 March 2015 Paper

Directional denoising and line enhancement for device segmentation in real time fluoroscopic imaging

Martin Wagner, Kevin Royalty, Erick Oberstar, Charles Strother, Charles Mistretta

Proceedings Volume 9413, 94132C (2015) https://doi.org/10.1117/12.2081545

KEYWORDS: Image segmentation, Denoising, Reconstruction algorithms, Wavelets, Real time imaging, Binary data, Angiography, Image quality, Quality measurement, Image processing

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Proceedings Article | 18 March 2015 Paper

Ultra low radiation dose digital subtraction angiography (DSA) imaging using low rank constraint

Kai Niu, Yinsheng Li, Sebastian Schafer, Kevin Royalty, Yijing Wu, Charles Strother, Guang-Hong Chen

Proceedings Volume 9412, 94121O (2015) https://doi.org/10.1117/12.2082070

KEYWORDS: Image processing, Denoising, Data acquisition, Angiography, Medical imaging, Arteries, Algorithm development, In vivo imaging, Optimization (mathematics), Image quality

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Proceedings Article | 18 March 2015 Paper

Volumetric limiting spatial resolution analysis of four dimensional digital subtraction angiography (4D-DSA)

Brian Davis, Erick Oberstar, Kevin Royalty, Sebastian Schafer, Charles Strother, Charles Mistretta

Proceedings Volume 9412, 94121B (2015) https://doi.org/10.1117/12.2081624

KEYWORDS: Spatial resolution, Spatial frequencies, Modulation transfer functions, Point spread functions, Computed tomography, 3D image reconstruction, 3D image processing, Temporal resolution, Image resolution, Convolution

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Proceedings Article | 19 March 2014 Paper

A patient-specific scatter artifacts correction method

Wei Zhao, Stephen Brunner, Kai Niu, Sebastian Schafer, Kevin Royalty, Guang-Hong Chen

Proceedings Volume 9033, 903310 (2014) https://doi.org/10.1117/12.2043923

KEYWORDS: Monte Carlo methods, Calibration, Data modeling, X-ray computed tomography, X-ray sources, Convolution, X-rays, Image segmentation, Numerical simulations, Computed tomography

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Proceedings Article | 19 March 2013 Paper

Radiation dose reduction and CNR enhancement in C-arm cone beam CT

Kai Niu, Jie Tang, Kevin Royalty, Orhan Ozkan, Charles Strother, Beverly Aagaard-Kienitz, Kari Pulfer, Guang-Hong Chen

Proceedings Volume 8668, 86682S (2013) https://doi.org/10.1117/12.2007736

KEYWORDS: Image quality, Spatial resolution, Image compression, Reconstruction algorithms, Image quality standards, Denoising, Computed tomography, Image enhancement, Image processing, Medical imaging

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Proceedings Article | 19 March 2013 Paper

Technical feasibility of CT perfusion using a C-Arm CBCT system

Min Xu, Jie Tang, Kevin Royalty, Guang-Hong Chen

Proceedings Volume 8668, 86681R (2013) https://doi.org/10.1117/12.2007623

KEYWORDS: X-ray computed tomography, Tissues, Brain, Temporal resolution, Data acquisition, X-rays, Brain mapping, Diagnostics, Neuroimaging, Imaging systems

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Proceedings Article | 19 March 2013 Paper

A novel temporal recovery technique to enable cone beam CT perfusion imaging using an interventional C-arm system

Jie Tang, Min Xu, Kai Niu, Kevin Royalty, Kari Pulfer, Charles Strother, Guang-Hong Chen

Proceedings Volume 8668, 86681A (2013) https://doi.org/10.1117/12.2007620

KEYWORDS: Computed tomography, Diagnostics, Data acquisition, Imaging systems, Temporal resolution, In vivo imaging, Cerebral blood flow, Numerical simulations, Deconvolution, Ischemic stroke

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Proceedings Article | 27 February 2009 Paper

Measurement of cerebral blood volume using angiographic C-arm systems

Michael Zellerhoff, Yu Deuerling-Zheng, Charles Strother, Azam Ahmed, Kari Pulfer, Thomas Redel, Kevin Royalty, Julie Grinde, Dan Consigny

Proceedings Volume 7262, 72620H (2009) https://doi.org/10.1117/12.812097

KEYWORDS: Angiography, Tissues, 3D acquisition, Blood, Brain, Veins, Reconstruction algorithms, Imaging systems, Magnetic resonance imaging, 3D image processing

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Showing 5 of 10 publications

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