Dr. Xiang Li Profile

Dr. Xiang Li

Medical Physicist/Co-Director

SPIE Involvement:

Author

Publications (16)

SPIE Journal Paper | 21 August 2017

Size-based quality-informed framework for quantitative optimization of pediatric CT

Ehsan Samei, Xiang Li, Donald Frush

JMI, Vol. 4, Issue 03, 031209, (August 2017) https://doi.org/10.1117/12.10.1117/1.JMI.4.3.031209

KEYWORDS: Computed tomography, Chest, Image quality, Diagnostics, Lung, Lithium, Reconstruction algorithms, Imaging systems, Safety, Collimation

Read Abstract +

SPIE Journal Paper | 5 July 2017

Extending the concept of weighted CT dose index to elliptical phantoms of various aspect ratios

Andrey Markovich, Ashraf Morgan, Frank Dong, Andrew Primak, Xiang Li

JMI, Vol. 4, Issue 03, 031205, (July 2017) https://doi.org/10.1117/12.10.1117/1.JMI.4.3.031205

KEYWORDS: Monte Carlo methods, Computed tomography, Abdomen, Polymethylmethacrylate, Chest, X-ray computed tomography, Lithium, Modulation, Medical imaging, Medical physics

Read Abstract +

Proceedings Article | 18 March 2015 Paper

Analysis of uncertainties in Monte Carlo simulated organ dose for chest CT

John Muryn, Ashraf Morgan, W. Segars, Chris Liptak, Frank Dong, Andrew Primak, Xiang Li

Proceedings Volume 9412, 941232 (2015) https://doi.org/10.1117/12.2076067

KEYWORDS: Monte Carlo methods, Chest, Computed tomography, X-rays, X-ray computed tomography, Manufacturing, Aluminum, Error analysis, Liver, Scanners

Read Abstract +

Proceedings Article | 18 March 2015 Paper

Anatomy-based transmission factors for technique optimization in portable chest x-ray

Christopher Liptak, Deborah Tovey, William Segars, Frank Dong, Xiang Li

Proceedings Volume 9412, 941247 (2015) https://doi.org/10.1117/12.2082056

KEYWORDS: X-rays, Sensors, Monte Carlo methods, Chest imaging, Lung, Collimation, Chromium, X-ray imaging, Tissues, Signal attenuation

Read Abstract +

Proceedings Article | 19 March 2014 Paper

Prospective optimization of CT under tube current modulation: I. organ dose

Xiaoyu Tian, Xiang Li, W. Paul Segars, Donald Frush, Ehsan Samei

Proceedings Volume 9033, 90331Q (2014) https://doi.org/10.1117/12.2043858

KEYWORDS: Modulation, Computed tomography, Monte Carlo methods, Radiation effects, Scanners, 3D modeling, Diagnostics, Physics, Signal attenuation, Radiology

Read Abstract +

Proceedings Article | 21 March 2013 Paper

Organ dose in chest CT: effect of modulation scheme on estimation accuracy

Xiang Li, William Segars, Ehsan Samei

Proceedings Volume 8668, 86682A (2013) https://doi.org/10.1117/12.2008505

KEYWORDS: Modulation, Chest, Computed tomography, X-ray computed tomography, Monte Carlo methods, Signal attenuation, Lung, X-rays, Kidney, Breast

Read Abstract +

Proceedings Article | 19 March 2013 Paper

Comparative dosimetry of radiography, tomosynthesis, and CT for chest imaging across 59 adult patients

Yakun Zhang, Xiang Li, W. Segars, Ehsan Samei

Proceedings Volume 8668, 866844 (2013) https://doi.org/10.1117/12.2008544

KEYWORDS: Chest, Radiography, X-ray computed tomography, Monte Carlo methods, Chest imaging, Medicine, X-ray imaging, X-rays, Physics, Image resolution

Read Abstract +

Proceedings Article | 9 March 2012 Paper

Patient- and cohort-specific dose and risk estimation for abdominopelvic CT: a study based on 100 patients

Xiaoyu Tian, Xiang Li, W. Paul Segars, Donald Frush, Ehsan Samei

Proceedings Volume 8313, 83131R (2012) https://doi.org/10.1117/12.913341

KEYWORDS: Computed tomography, Scanners, Monte Carlo methods, Cancer, Medicine, Digital Light Processing, X-ray computed tomography, Tissues, 3D modeling, Physics

Read Abstract +

Proceedings Article | 17 March 2011 Paper

Predictive models for observer performance in CT: applications in protocol optimization

S. Richard, X. Li, G. Yadava, E. Samei

Proceedings Volume 7961, 79610H (2011) https://doi.org/10.1117/12.877069

KEYWORDS: Modulation transfer functions, Performance modeling, Eye models, Reconstruction algorithms, Computed tomography, Optimization (mathematics), Eye, X-ray computed tomography, Imaging systems, Image filtering

Read Abstract +

Proceedings Article | 17 March 2011 Paper

The feasibility of universal DLP-to-risk conversion coefficients for body CT protocols

Xiang Li, Ehsan Samei, W. Paul Segars, Erik Paulson, Donald Frush

Proceedings Volume 7961, 79612A (2011) https://doi.org/10.1117/12.878616

KEYWORDS: Liver, Computed tomography, Monte Carlo methods, Cancer, Chest, Abdomen, Digital Light Processing, Kidney, Lung, Head

Read Abstract +

Proceedings Article | 22 March 2010 Paper

Patient-specific radiation dose and cancer risk estimation in pediatric chest CT: a study in 30 patients

Xiang Li, Ehsan Samei, W. Paul Segars, Gregory Sturgeon, James Colsher, Donald Frush

Proceedings Volume 7622, 76221J (2010) https://doi.org/10.1117/12.845491

KEYWORDS: Chest, Cancer, Lung cancer, Lung, Tissues, Bladder cancer, Liver cancer, Computed tomography, Bone, Colorectal cancer

Read Abstract +

Proceedings Article | 19 March 2010 Paper

The myth of mean dose as a surrogate for radiation risk?

Ehsan Samei, Xiang Li, Baiyu Chen, Robert Reiman

Proceedings Volume 7622, 76220T (2010) https://doi.org/10.1117/12.845940

KEYWORDS: Cancer, Tissues, Tumor growth modeling, Breast, Computer simulations, Chest, Mammography, Radiography, Monte Carlo methods, Medical imaging

Read Abstract +

Proceedings Article | 27 February 2009 Paper

Patient-specific dose estimation for pediatric abdomen-pelvis CT

Xiang Li, Ehsan Samei, W. Paul Segars, Gregory Sturgeon, James Colsher, Donald Frush

Proceedings Volume 7258, 725804 (2009) https://doi.org/10.1117/12.813531

KEYWORDS: Data modeling, Intestine, Computed tomography, Computer simulations, Tissues, Kidney, Monte Carlo methods, Image segmentation, 3D modeling, Chest

Read Abstract +

Proceedings Article | 27 February 2009 Paper

Patient specific computerized phantoms to estimate dose in pediatric CT

W. Segars, G. Sturgeon, X. Li, L. Cheng, C. Ceritoglu, J. Ratnanather, M. Miller, B. M. Tsui, D. Frush, E. Samei

Proceedings Volume 7258, 72580H (2009) https://doi.org/10.1117/12.813517

KEYWORDS: Computed tomography, 3D modeling, Bone, Image segmentation, Data modeling, Mathematical modeling, Natural surfaces, Medical imaging, Chest, Algorithm development

Read Abstract +

Proceedings Article | 25 March 2008 Paper

Toward assessing the diagnostic influence of dose reduction in pediatric CT: a study based on simulated lung nodules

Xiang Li, Ehsan Samei, David DeLong, Robert Jones, James Colsher, Donald Frush

Proceedings Volume 6913, 69131L (2008) https://doi.org/10.1117/12.772089

KEYWORDS: Lung, Diagnostics, Chest, Computed tomography, Medicine, Calibration, X-ray computed tomography, Scanners, Computer simulations, 3D image processing

Read Abstract +

Proceedings Article | 28 March 2007 Paper

Experimental benchmarking of a Monte Carlo dose simulation code for pediatric CT

Xiang Li, Ehsan Samei, Terry Yoshizumi, James Colsher, Robert Jones, Donald Frush

Proceedings Volume 6510, 65102A (2007) https://doi.org/10.1117/12.713728

KEYWORDS: Monte Carlo methods, Optical filters, Ions, Scanners, Polymethylmethacrylate, Computed tomography, Particles, Optical simulations, Computer simulations, X-ray computed tomography

Read Abstract +

Showing 5 of 16 publications

View contact details

UPDATE YOUR PROFILE

Is this your profile? Update it now.

Sign into your SPIE.org account

Don’t have a profile and want one?

Create an account on SPIE.org

Keywords/Phrases

Search In:

Publication Years