Dr. John J. DeMarco Profile

Dr. John J. DeMarco

Associate Clinical Professor at Univ of California Los Angeles

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Author

Publications (13)

Proceedings Article | 13 March 2017 Presentation + Paper

The development of a decision support system with an interactive clinical user interface for estimating treatment parameters in radiation therapy in order to reduce radiation dose in head and neck patients

Sneha Verma, Joseph Liu, Ruchi Deshpande, John DeMarco, Brent Liu

Proceedings Volume 10138, 101380M (2017) https://doi.org/10.1117/12.2257029

KEYWORDS: Radiotherapy, Data processing, Technologies and applications, Medical imaging, Decision support systems, Human-machine interfaces, Head, Neck, Tissues, Tumors, Databases, Prototyping, Data modeling, Information science

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Proceedings Article | 25 March 2016 Paper

Multi-site evaluation of a clinical decision support system for radiation therapy

Ruchi Deshpande, John DeMarco, Kerstin Kessel, Brent Liu

Proceedings Volume 9789, 97890E (2016) https://doi.org/10.1117/12.2217733

KEYWORDS: Decision support systems, Imaging informatics, Radiotherapy, Databases, Head, Neck, Cancer, Tissues, Systems modeling, Process modeling, Data modeling, Computed tomography, Tumors, Feature extraction, Radiation oncology

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Proceedings Article | 17 March 2015 Paper

Design and evaluation of an imaging informatics system for analytics-based decision support in radiation therapy

Ruchi Deshpande, John DeMarco, Brent Liu

Proceedings Volume 9418, 94180Y (2015) https://doi.org/10.1117/12.2082862

KEYWORDS: Decision support systems, Radiotherapy, Databases, Cancer, Data modeling, Imaging informatics, Head, Neck, Oncology, Tumors

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Proceedings Article | 19 March 2014 Paper

A collaborative framework for contributing DICOM RT PHI (Protected Health Information) to augment data mining in clinical decision support

Ruchi Deshpande, Wanwara Thuptimdang, John DeMarco, Brent Liu

Proceedings Volume 9039, 90390K (2014) https://doi.org/10.1117/12.2044010

KEYWORDS: Data modeling, Decision support systems, Databases, Computed tomography, Radiotherapy, Data mining, Tumors, Data processing, Imaging informatics, Machine learning

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Proceedings Article | 29 March 2013 Paper

Role of an imaging informatics-based DICOM-RT cancer registry in evaluating treatment parameters of IMRT for prostate cancer

Ruchi Deshpande, Alyssa Zhou, Jeffrey Zhang, John DeMarco, Brent Liu

Proceedings Volume 8674, 86740O (2013) https://doi.org/10.1117/12.2007429

KEYWORDS: Cancer, Oncology, Bladder, Imaging systems, Databases, Radiotherapy, Tumors, Computed tomography, Data modeling, Rectum

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Proceedings Article | 22 March 2012 Paper

Diagnostic accuracy at several reduced radiation dose levels for CT imaging in the diagnosis of appendicitis

Di Zhang, Maryam Khatonabadi, Hyun Kim, Matilda Jude, Edward Zaragoza, Margaret Lee, Maitraya Patel, Cheryce Poon, Michael Douek, Denise Andrews-Tang, Laura Doepke, Shawn McNitt-Gray, Chris Cagnon, John DeMarco, Michael McNitt-Gray

Proceedings Volume 8313, 831347 (2012) https://doi.org/10.1117/12.911428

KEYWORDS: Diagnostics, Image quality, Computed tomography, Liver, Monte Carlo methods, Scanners, Data modeling, Medical imaging, Radiation effects, Inflammation

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Proceedings Article | 3 March 2012 Paper

The relationship between organ dose and patient size in tube current modulated adult thoracic CT scans

Maryam Khatonabadi, Di Zhang, Jeffrey Yang, John DeMarco, Chris Cagnon, Michael McNitt-Gray

Proceedings Volume 8313, 83131Q (2012) https://doi.org/10.1117/12.911382

KEYWORDS: Breast, Lung, Scanners, Computed tomography, Monte Carlo methods, Modulation, Tissues, Data modeling, X-ray computed tomography, Particles

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Proceedings Article | 16 February 2012 Paper

Data mining DICOM RT objects for quality control in radiation oncology

Ruchi Deshpande, John DeMarco, Daniel Low, Anh Le, Brent Liu

Proceedings Volume 8319, 83190Q (2012) https://doi.org/10.1117/12.911075

KEYWORDS: Databases, Toxicity, Data mining, Radiation oncology, Rectum, Data modeling, Knowledge discovery, Radiotherapy, Tissues, Computed tomography

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Proceedings Article | 18 March 2011 Paper

The accuracy of estimated organ doses from Monte Carlo CT simulations using cylindrical regions of interest within organs

Maryam Khatonabadi, Jesse Sandberg, Naghmehossadat Eshghi, John DeMarco, Erin Angel, Adam Turner, Di Zhang, Chris Cagnon, Michael McNitt-Gray

Proceedings Volume 7961, 79612G (2011) https://doi.org/10.1117/12.877786

KEYWORDS: Monte Carlo methods, Kidney, Liver, Spleen, Image segmentation, Modulation, X-ray computed tomography, Scanners, 3D modeling, Statistical analysis

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Proceedings Article | 15 March 2007 Paper

Radiation dose from MDCT using Monte Carlo simulations: estimating fetal dose due to pulmonary embolism scans accounting for overscan

E. Angel, C. Wellnitz, M. Goodsitt, J. DeMarco, C. Cagnon, M. Ghatali, D. Cody, D. Stevens, C. McCollough, A. Primak, M. McNitt-Gray

Proceedings Volume 6510, 65102C (2007) https://doi.org/10.1117/12.713820

KEYWORDS: Lung, Monte Carlo methods, Scanners, X-rays, Mathematical modeling, X-ray computed tomography, Data modeling, Collimation, Optical simulations, Fetus

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Proceedings Article | 20 April 2005 Paper

Estimating surface radiation dose from multidetector CT: cylindrical phantoms, anthropomorphic phantoms, and Monte Carlo simulations

J. DeMarco, C. Cagnon, D. Cody, D. Stevens, C. McCollough, J. O'Daniel, M. McNitt-Gray

Proceedings Volume 5745, (2005) https://doi.org/10.1117/12.595933

KEYWORDS: Monte Carlo methods, Field effect transistors, Scanners, X-ray computed tomography, Sensors, Head, Natural surfaces, Mathematical modeling, Computed tomography, Collimation

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Proceedings Article | 28 June 2001 Paper

Monte-Carlo-based simulation tool to model the physics and geometry of electron beam computed tomography

Chris Cagnon, Michael McNitt-Gray, John DeMarco

Proceedings Volume 4320, (2001) https://doi.org/10.1117/12.430891

KEYWORDS: Monte Carlo methods, Sensors, Photons, Scanners, X-ray computed tomography, Optical simulations, Computed tomography, Tissues, Bone, CT reconstruction

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Proceedings Article | 21 October 1996 Paper

Application of FPGA technology to performance limitations in radiation therapy

John DeMarco, J. Smathers, Tim Solberg, Steve Casselman

Proceedings Volume 2914, (1996) https://doi.org/10.1117/12.255827

KEYWORDS: Monte Carlo methods, Field programmable gate arrays, Photon transport, Radiotherapy, Computer simulations, Radiation oncology, Sun, Particles, Earth Viewing Camera, Logic

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Showing 5 of 13 publications

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