Dr. Ruoqiao Zhang Profile

Dr. Ruoqiao Zhang

at Canon Medical Research USA Inc

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Author

Publications (8)

Proceedings Article | 1 April 2024 Poster + Paper

Dose-efficient characterization of coronary artery plaques with a prototype CdZnTe-based photon-counting CT scanner

Thomas Wesley Holmes, Patrick Gleason, Shobhit Sharma, Kurt Schultz, Steven Ross, Shuoxing Wu, Thomas Labno, Ruoqiao Zhang, Richard Thompson, Zhou Yu, Amir Pourmorteza

Proceedings Volume 12925, 1292530 (2024) https://doi.org/10.1117/12.3008650

KEYWORDS: Photon counting, Scanners, Iodine, X-ray computed tomography, Arteries, Contrast agents

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Proceedings Article | 7 April 2023 Presentation + Paper

A study of crosstalk effect in pixelated photon counting detectors and impact to system imaging performance

Xiaohui Zhan, Shuoxing Wu, Ilmar Hein, Nikolay Markov, Ruoqiao Zhang, Brent Budden, Cameron Clarke, Yi Qiang, Zhou Yu, Richard Thompson, Hiroaki Miyazaki, Hiroaki Nakai

Proceedings Volume 12463, 124630C (2023) https://doi.org/10.1117/12.2654374

KEYWORDS: Crosstalk, Modulation transfer functions, Imaging systems, Photon counting, Spatial resolution, Design and modelling

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Proceedings Article | 7 April 2023 Presentation + Paper

Task-driven CT image quality optimization for low-contrast lesion detectability with tunable neural networks

Matthew Tivnan, Tzu-Cheng Lee, Ruoqiao Zhang, Kirsten Boedeker, Liang Cai, Jeremias Sulam, J. Webster Stayman

Proceedings Volume 12463, 124631M (2023) https://doi.org/10.1117/12.2653936

KEYWORDS: Computed tomography, Neural networks, Education and training, Image quality, Denoising, CT reconstruction, Deep learning, Performance modeling, 3D modeling, Medical image reconstruction

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Proceedings Article | 16 March 2020 Presentation + Paper

A cascaded deep-learning reconstruction method for sparse-view kV-switching dual-energy CT

Ruoqiao Zhang, Jian Zhou, Zhou Yu

Proceedings Volume 11312, 1131223 (2020) https://doi.org/10.1117/12.2549852

KEYWORDS: Dual energy imaging, Medical image reconstruction, Machine learning, Image quality, Switching, Iodine, Convolutional neural networks, Data acquisition, X-rays, Spatial resolution, X-ray computed tomography, Modulation

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Proceedings Article | 9 March 2017 Presentation + Paper

Improved attenuation correction for respiratory gated PET/CT with extended-duration cine CT: a simulation study

Ruoqiao Zhang, Adam Alessio, Larry Pierce, Darrin Byrd, Tzu-Cheng Lee, Bruno De Man, Paul Kinahan

Proceedings Volume 10132, 101321I (2017) https://doi.org/10.1117/12.2254599

KEYWORDS: Computed tomography, Positron emission tomography, Medical imaging, Algorithm development, Computer simulations, Lung, Tumors, 3D acquisition, CT reconstruction, Reconstruction algorithms

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Proceedings Article | 9 March 2017 Presentation + Paper

Statistical distributions of ultra-low dose CT sinograms and their fundamental limits

Tzu-Cheng Lee, Ruoqiao Zhang, Adam Alessio, Lin Fu, Bruno De Man, Paul Kinahan

Proceedings Volume 10132, 101320N (2017) https://doi.org/10.1117/12.2254375

KEYWORDS: Interference (communication), Aluminum, Computer simulations, Image registration, Sensors, Statistical analysis, Signal attenuation, Computed tomography, Image restoration, Data processing, Calibration, Data modeling, Environmental sensing, Diagnostics, Statistical modeling

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Proceedings Article | 7 March 2014 Paper

Statistical x-ray computed tomography imaging from photon-starved measurements

Zhiqian Chang, Ruoqiao Zhang, Jean-Baptiste Thibault, Ken Sauer, Charles Bouman

Proceedings Volume 9020, 90200G (2014) https://doi.org/10.1117/12.2048204

KEYWORDS: Bayesian inference, Photon counting, Denoising, Signal to noise ratio, Sensors, Signal attenuation, X-ray computed tomography, Reconstruction algorithms, X-rays, Image quality

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Proceedings Article | 19 February 2013 Paper

Statistical modeling challenges in model-based reconstruction for x-ray CT

Ruoqiao Zhang, Aaron Chang, Jean-Baptiste Thibault, Ken Sauer, Charles Bouman

Proceedings Volume 8657, 86570S (2013) https://doi.org/10.1117/12.2013231

KEYWORDS: Statistical analysis, X-rays, Data modeling, Photon counting, Model-based design, Statistical modeling, Data acquisition, X-ray computed tomography, X-ray imaging, Diagnostics

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Showing 5 of 8 publications

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