Prof. John W. Garrett Profile

Prof. John W. Garrett

Assistan Professor at Univ of Wisconsin School of Medicine and Public Health

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Author

Publications (23)

SPIE Journal Paper | 3 December 2024

Comparison of sequential multi-detector CT and cone-beam CT perfusion maps in 39 subjects with anterior circulation acute ischemic stroke due to a large vessel occlusion

John Garrett, Kelly Capel, Laura Eisenmenger, Azam Ahmed, David Niemann, Yinsheng Li, Ke Li, Dalton Griner, Sebastian Schafer, Charles Strother, Guang-Hong Chen, Beverly Aagaard-Kienitz

JMI, Vol. 11, Issue 06, 065502, (December 2024) https://doi.org/10.1117/12.10.1117/1.JMI.11.6.065502

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Proceedings Article | 3 April 2024 Presentation

Iodine map generation from single-kV contrast-enhanced CT using a conditional generative model

Ran Zhang, Yijing Wu, John Garrett, Ke Li, Meghan Lubner, Thomas Grist, Guang-Hong Chen

Proceedings Volume 12925, 1292509 (2024) https://doi.org/10.1117/12.3008641

KEYWORDS: Iodine, Data modeling, Computed tomography, Education and training, Scanners, Performance modeling, Diffusion, Biomedical applications, Statistical modeling, Medical imaging

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Proceedings Article | 4 April 2022 Presentation

Deep-En-Chroma: mining the spectral fingerprints in single-kV CT acquisitions using energy integration detectors

Yinsheng Li, Xin Tie, Ke Li, John Garrett, Guang-Hong Chen

Proceedings Volume PC12031, PC120310I (2022) https://doi.org/10.1117/12.2611838

KEYWORDS: X-ray computed tomography, Sensors, Mining, X-rays, Imaging systems, Data acquisition, Tissues, Medicine, Medical imaging modalities, Human subjects

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Proceedings Article | 4 April 2022 Presentation

Quantitative lung perfusion blood volume maps using effective Z images learned from single-kV pulmonary CT angiography data

Ke Li, Yinsheng Li, Zhihua Qi, John Garrett, Thomas Grist, Guang-Hong Chen

Proceedings Volume PC12031, PC120310J (2022) https://doi.org/10.1117/12.2612593

KEYWORDS: Computed tomography, Lung, Iodine, Blood, Angiography, Nuclear medicine, Neural networks, Human subjects, Hemodynamics, Functional imaging

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Proceedings Article | 15 February 2021 Presentation + Paper

COVID-19 pneumonia diagnosis using chest x-ray radiograph and deep learning

Dalton Griner, Ran Zhang, Xin Tie, Chengzhu Zhang, John Garrett, Ke Li, Guang-Hong Chen

Proceedings Volume 11597, 1159706 (2021) https://doi.org/10.1117/12.2581972

KEYWORDS: Chest imaging, Radiography, X-rays, Polymers, Machine learning, Gold, Data modeling

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Proceedings Article | 15 February 2021 Presentation + Paper

Generation of virtual non-contrast (VNC) image from dual energy CT scans using deep learning

Yinsheng Li, Ke Li, John Garrett, Guang-Hong Chen

Proceedings Volume 11595, 115951E (2021) https://doi.org/10.1117/12.2582006

KEYWORDS: Computed tomography, Dual energy imaging, Range imaging, Medical imaging applications, Machine learning

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Proceedings Article | 16 March 2020 Paper

Correction for cone beam CT image artifacts via a deep learning method

Dalton Griner, John Garrett, Yinsheng Li, Ke Li, Guang-Hong Chen

Proceedings Volume 11312, 113124H (2020) https://doi.org/10.1117/12.2549685

KEYWORDS: Computed tomography, Data acquisition, Image segmentation, Image quality, Image registration, Sensors, Image processing, Network architectures, Convolution, X-ray computed tomography

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Proceedings Article | 16 March 2020 Paper

Quantitative blood flow imaging with time-resolved C-arm cone-beam CT imaging

John Garrett, Yinsheng Li, Juan Montoya, Yijing Wu, Ke Li, Charles Strother, Guang-Hong Chen

Proceedings Volume 11312, 113123G (2020) https://doi.org/10.1117/12.2548516

KEYWORDS: Blood circulation, Data acquisition, Angiography, Computed tomography, Temporal resolution, Human subjects, Numerical simulations, Diagnostics, Imaging systems, Image enhancement

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Proceedings Article | 16 March 2020 Paper

High temporal resolution time-resolved C-arm cone-beam CT imaging using a multi-sweep data acquisition scheme

Yinsheng Li, John Garrett, Ke Li, Charles Strother, Guang-Hong Chen

Proceedings Volume 11312, 113121K (2020) https://doi.org/10.1117/12.2549602

KEYWORDS: Temporal resolution, Data acquisition, Angiography, Human subjects, Arteries, Image restoration, Numerical simulations, Tissues, In vivo imaging, Superposition

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Proceedings Article | 7 March 2019 Presentation + Paper

Human-compatible multi-contrast mammographic prototype system

Ran Zhang, Ke Li, John Garrett, Guang-Hong Chen

Proceedings Volume 10948, 109480X (2019) https://doi.org/10.1117/12.2513149

KEYWORDS: Imaging systems, Mammography, Breast imaging, Interferometers

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Proceedings Article | 9 March 2018 Presentation + Paper

Time-resolved C-arm cone beam CT angiography using SMART-RECON: quantification of temporal resolution and reconstruction accuracy

John Garrett, Yinsheng Li, Ke Li, Sebastian Schafer, Charles Strother, Guang-Hong Chen

Proceedings Volume 10573, 105731T (2018) https://doi.org/10.1117/12.2292477

KEYWORDS: Temporal resolution, Reconstruction algorithms, Angiography, Image quality, Arteries, Veins, Computed tomography, Lithium, Error analysis, Sensors

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Proceedings Article | 9 March 2018 Presentation + Paper

Design, construction, and initial results of a prototype multi-contrast x-ray breast imaging system

Ke Li, Ran Zhang, John Garrett, Yongshuai Ge, Xu Ji, Guang-Hong Chen

Proceedings Volume 10573, 105730W (2018) https://doi.org/10.1117/12.2293921

KEYWORDS: Imaging systems, X-ray imaging, Prototyping, X-rays, Breast imaging, Diffraction gratings, Interferometers

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Proceedings Article | 9 March 2018 Paper

Noise and spatial resolution characteristics of unregularized statistical iterative reconstruction: an experimental phantom study

John Hayes, Daniel Gomez-Cardona, John Garrett, Ran Zhang, Guang-Hong Chen

Proceedings Volume 10573, 1057330 (2018) https://doi.org/10.1117/12.2293974

KEYWORDS: Modulation transfer functions, Spatial resolution, Denoising, X-ray computed tomography, Image quality, Image filtering, Complex systems, Imaging systems, Fluctuations and noise

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Proceedings Article | 9 March 2017 Presentation + Paper

Pushing the boundaries of diagnostic CT systems for high spatial resolution imaging tasks

Juan P. Cruz-Bastida, Daniel Gomez-Cardona, John Garrett, Timothy Szczykutowicz, Guang-Hong Chen, Ke Li

Proceedings Volume 10132, 101320F (2017) https://doi.org/10.1117/12.2255587

KEYWORDS: Spatial resolution, Diagnostics, Computed tomography, Imaging systems, Information fusion, In vivo imaging, Image quality, Signal to noise ratio, Fluctuations and noise, CT reconstruction, Lung, Bone, X-ray computed tomography, Medicine, Sensors

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Proceedings Article | 9 March 2017 Paper

Denoised ordered subset statistically penalized algebraic reconstruction technique (DOS-SPART) in digital breast tomosynthesis

John Garrett, Yinsheng Li, Ke Li, Guang-Hong Chen

Proceedings Volume 10132, 101324F (2017) https://doi.org/10.1117/12.2255584

KEYWORDS: Digital breast tomosynthesis, Reconstruction algorithms, Breast, Optimization (mathematics), Computed tomography, Spatial resolution, Mammography, Image quality, 3D image processing, Cancer, 3D image reconstruction

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Proceedings Article | 22 March 2016 Paper

Reduction of beam hardening artifacts in cone-beam CT imaging via SMART-RECON algorithm

Yinsheng Li, John Garrett, Guang-Hong Chen

Proceedings Volume 9783, 97830W (2016) https://doi.org/10.1117/12.2216882

KEYWORDS: Cones, X-ray computed tomography, Reconstruction algorithms, Data acquisition, Algorithm development, X-rays, Automatic exposure, Automatic control, Diagnostics, Tomography, X-ray imaging, Numerical simulations, Photons, Image restoration, Bone

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Proceedings Article | 18 March 2015 Paper

Anatomical background noise power spectrum in differential phase contrast breast images

John Garrett, Yongshuai Ge, Ke Li, Guang-Hong Chen

Proceedings Volume 9412, 94121J (2015) https://doi.org/10.1117/12.2081008

KEYWORDS: Breast, Mammography, Absorption, Imaging systems, Phase contrast, X-rays, Breast imaging, X-ray imaging, Spatial frequencies, Sensors

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Proceedings Article | 18 March 2015 Paper

New signal extraction method in x-ray differential phase contrast imaging with a tilted collinear analyzer grating

Yongshuai Ge, John Garrett, Ke Li, Guang-Hong Chen

Proceedings Volume 9412, 94120H (2015) https://doi.org/10.1117/12.2081015

KEYWORDS: X-rays, Diffraction gratings, Phase contrast, Signal detection, X-ray imaging, Sensors, Absorption, Data acquisition, Diffraction, Imaging systems

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Proceedings Article | 18 March 2015 Paper

Methods to mitigate data truncation artifacts in multi-contrast tomosynthesis image reconstructions

John Garrett, Yongshuai Ge, Ke Li, Guang-Hong Chen

Proceedings Volume 9412, 941225 (2015) https://doi.org/10.1117/12.2081017

KEYWORDS: Sensors, Absorption, Phase contrast, X-rays, Data acquisition, X-ray imaging, Tomography, Breast, Image restoration, Medical imaging

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Proceedings Article | 18 March 2015 Paper

Absorption imaging performance in a future Talbot-Lau interferometer based breast imaging system

Yongshuai Ge, Wei Zhao, John Garrett, Ke Li, Guang-Hong Chen

Proceedings Volume 9412, 94123X (2015) https://doi.org/10.1117/12.2081013

KEYWORDS: Imaging systems, Breast imaging, Absorption, Photons, X-rays, Sensors, Monte Carlo methods, X-ray imaging, Optical design, Breast

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Proceedings Article | 19 March 2014 Paper

Fast data acquisition method in X-ray differential phase contrast imaging using a new grating design

Yongshuai Ge, Ke Li, John Garrett, Guang-Hong Chen

Proceedings Volume 9033, 90330B (2014) https://doi.org/10.1117/12.2043886

KEYWORDS: Data acquisition, X-rays, Optical design, X-ray imaging, Sensors, Phase contrast, X-ray detectors, Diffraction gratings, Fringe analysis, Absorption

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Proceedings Article | 19 March 2013 Paper

Radiation dose reduction in dual-energy CT using Prior Image Constrained Compressed Sensing: image quality evaluation in virtual monochromatic imaging

Stephen Brunner, John Garrett, Yinsheng Li, Jie Tang, Kari Pulfer, Jiang Hsieh, Howard Rowley, Guang-Hong Chen

Proceedings Volume 8668, 866826 (2013) https://doi.org/10.1117/12.2007606

KEYWORDS: Image quality, Computed tomography, Bone, Spatial resolution, Compressed sensing, Denoising, Imaging spectroscopy, Medical imaging, CT reconstruction, Zoom lenses

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Proceedings Article | 19 March 2013 Paper

How to determine detection performance of a DPC-CT system from a conventional cone beam CT system?

Ke Li, John Garrett, Nicholas Bevins, Joseph Zambelli, Guang-Hong Chen

Proceedings Volume 8668, 866811 (2013) https://doi.org/10.1117/12.2008087

KEYWORDS: Breast, Imaging systems, X-rays, X-ray computed tomography, Absorption, Interferometers, Sensors, X-ray imaging, X-ray detectors, Modulation transfer functions

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Showing 5 of 23 publications

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