Mr. Ricardo Betancourt-Benitez Profile

Ricardo Betancourt-Benitez

Graduate Student at Univ of Rochester Medical Ctr

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Author

Publications (11)

Proceedings Article | 23 March 2010 Paper

Development of a beam hardening filter and characterization of the spatial resolution for a cone beam CT imaging system

Ricardo Betancourt Benítez, Ruola Ning

Proceedings Volume 7622, 762237 (2010) https://doi.org/10.1117/12.844333

KEYWORDS: Image filtering, Bone, Spatial resolution, Image quality, X-rays, Zoom lenses, X-ray computed tomography, Metals, Imaging systems, Titanium

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SPIE Journal Paper | 1 November 2009

Composite modulation transfer function evaluation of a cone beam computed tomography breast imaging system

Ricardo Betancourt-Benitez, Ruola Ning, David Conover, Shaohua Liu

OE, Vol. 48, Issue 11, 117002, (November 2009) https://doi.org/10.1117/12.10.1117/1.3258348

KEYWORDS: Modulation transfer functions, Spatial resolution, Reconstruction algorithms, Composites, Imaging systems, Spatial frequencies, Scattering, Computed tomography, Breast imaging, Laser scattering

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Proceedings Article | 27 March 2009 Paper

Image quality improvement based on wavelet regularization for cone beam breast CT (CBBCT)

Dong Yang, Ruola Ning, Xiaohua Zhang, Ricardo Betancourt, Shaohua Liu

Proceedings Volume 7259, 725929 (2009) https://doi.org/10.1117/12.812919

KEYWORDS: Wavelets, Linear filtering, Image filtering, Breast, Signal to noise ratio, Modulation transfer functions, Interference (communication), X-rays, Spatial resolution, Reconstruction algorithms

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Proceedings Article | 4 March 2009 Paper

A quantitative analysis of breast densities using cone beam CT images

Ricardo Betancourt Benítez, Ruola Ning, David Conover, Shaohua Liu

Proceedings Volume 7260, 72602C (2009) https://doi.org/10.1117/12.811075

KEYWORDS: Breast, Tissues, Image segmentation, Optical spheres, Computed tomography, Imaging systems, Mammography, Breast cancer, Breast imaging, 3D image processing

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Proceedings Article | 3 April 2008 Paper

Cone beam CT tumor vasculature dynamic study (Murine model)

Dong Yang, Ruola Ning, David Conover, Betancourt Ricardo, Shaohua Liu

Proceedings Volume 6916, 691629 (2008) https://doi.org/10.1117/12.770762

KEYWORDS: Tumors, X-rays, Breast, Blood vessels, X-ray computed tomography, 3D image processing, Sensors, Image segmentation, Magnetic resonance imaging, Spatial resolution

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Proceedings Article | 19 March 2008 Paper

Development of a quality control program for a cone beam CT imaging system

Ricardo Betancourt Benítez, Ruola Ning, David Conover, Yan Zhang, Weixing Cai

Proceedings Volume 6913, 691356 (2008) https://doi.org/10.1117/12.770427

KEYWORDS: Imaging systems, Image quality, Modulation transfer functions, Computed tomography, X-ray computed tomography, Spatial resolution, Control systems, Sensors, Spatial frequencies, Image quality standards

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Proceedings Article | 22 March 2007 Paper

Complete MTF evaluation of two cone beam CT systems

Ricardo Betancourt Benítez, Ruola Ning, David Conover

Proceedings Volume 6510, 65104I (2007) https://doi.org/10.1117/12.710187

KEYWORDS: Modulation transfer functions, Imaging systems, Metals, Aluminum, Lead, Sensors, Optical filters, Copper, Computed tomography, Point spread functions

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Proceedings Article | 16 March 2007 Paper

Cone beam CT image quality measurements: PSF de-convolution

Ricardo Betancourt Benítez, Ruola Ning, David Conover

Proceedings Volume 6510, 65104Z (2007) https://doi.org/10.1117/12.710215

KEYWORDS: Modulation transfer functions, Tumors, Sensors, Aluminum, Image processing, Breast, Point spread functions, Lead, Tissues, Image quality

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Proceedings Article | 15 March 2007 Paper

A novel cone beam breast CT scanner: system evaluation

Ruola Ning, David Conover, Yong Yu, Yan Zhang, Weixing Cai, Ricardo Betancourt-Benitez, Xianghua Lu

Proceedings Volume 6510, 651030 (2007) https://doi.org/10.1117/12.710340

KEYWORDS: Breast, X-ray computed tomography, Scanners, Mammography, Imaging systems, Tumors, Spatial resolution, X-rays, Sensors, Image quality

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Proceedings Article | 2 March 2006 Paper

A novel cone beam breast CT scanner: preliminary system evaluation

Ruola Ning, David Conover, Yong Yu, Yan Zhang, Weixing Cai, Xianghua Lu, Richardo Betancourt-Benitez

Proceedings Volume 6142, 614211 (2006) https://doi.org/10.1117/12.655741

KEYWORDS: Breast, Scanners, Computed tomography, Mammography, Prototyping, Sensors, CT reconstruction, X-ray computed tomography, Tumors, Breast imaging

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Proceedings Article | 2 March 2006 Paper

Comparison measurements of DQE for two flat panel detectors: fluoroscopic detector vs. cone beam CT detector

Ricardo Betancourt Benítez, Ruola Ning, David Conover

Proceedings Volume 6142, 61422K (2006) https://doi.org/10.1117/12.655584

KEYWORDS: Sensors, Modulation transfer functions, X-ray sources, X-ray computed tomography, X-rays, Ionization, Spatial frequencies, Image quality, Diffractive optical elements, Aluminum

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Showing 5 of 11 publications

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