Jianan Gang

Research Associate

20092019
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Research Output 2009 2019

2019

Comparison of deep learning and human observer performance for detection and characterization of simulated lesions

De Man, R., Gang, J., Li, X. & Wang, G., Apr 1 2019, In : Journal of Medical Imaging. 6, 2, 025503.

Research output: Contribution to journalArticle

Learning
Noise
Radiology
Therapeutics

Comparison of deep learning and human observer performance for lesion detection and characterization

De Man, R., Gang, G. J., Li, X. & Wang, G., Jan 1 2019, 15th International Meeting on Fully Three-Dimensional Image Reconstruction in Radiology and Nuclear Medicine. Matej, S. & Metzler, S. D. (eds.). SPIE, 110721F. (Proceedings of SPIE - The International Society for Optical Engineering; vol. 11072).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

lesions
learning
Observer
Neural Networks
Neural networks

Dynamic fluence field modulation in computed tomography using multiple aperture devices

Gang, G. J., Mao, A., Wang, W., Siewerdsen, J. H., Mathews, A., Kawamoto, S., Levinson, R. & Stayman, J. W., May 21 2019, In : Physics in medicine and biology. 64, 10, 105024.

Research output: Contribution to journalArticle

Tomography
Equipment and Supplies
Tungsten
Artifacts
Noise

Generalized prediction framework for reconstructed image properties using neural networks

Gang, J., Cheng, K., Guo, X. & Stayman, J. W., Jan 1 2019, Medical Imaging 2019: Physics of Medical Imaging. Bosmans, H., Chen, G-H. & Schmidt, T. G. (eds.). SPIE, 109480L. (Progress in Biomedical Optics and Imaging - Proceedings of SPIE; vol. 10948).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Neural networks
Nonlinear Dynamics
predictions
Imaging techniques
Neural Networks (Computer)

Performance analysis for nonlinear tomographic data processing

Gang, G. J., Guo, X. & Stayman, J. W., Jan 1 2019, 15th International Meeting on Fully Three-Dimensional Image Reconstruction in Radiology and Nuclear Medicine. Matej, S. & Metzler, S. D. (eds.). SPIE, 110720W. (Proceedings of SPIE - The International Society for Optical Engineering; vol. 11072).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Performance Analysis
stimuli
Image quality
penalties
Perturbation

Task-driven source-detector trajectories in cone-beam computed tomography: I. Theory and methods

Stayman, J. W., Capostagno, S., Gang, J. & Siewerdsen, J., Apr 1 2019, In : Journal of Medical Imaging. 6, 2, 025002.

Research output: Contribution to journalArticle

Cone-Beam Computed Tomography
Orbit
Noise
Anatomy
X-Rays

Volume-of-interest imaging using multiple aperture devices

Wang, W., Gang, J., Siewerdsen, J. & Stayman, J. W., Jan 1 2019, Medical Imaging 2019: Physics of Medical Imaging. Bosmans, H., Chen, G-H. & Schmidt, T. G. (eds.). SPIE, 1094823. (Progress in Biomedical Optics and Imaging - Proceedings of SPIE; vol. 10948).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Tomography
Cone-Beam Computed Tomography
apertures
Imaging techniques
Equipment and Supplies

Volume-of-interest imaging with dynamic fluence modulation using multiple aperture devices

Wang, W., Gang, J., Siewerdsen, J., Levinson, R., Kawamoto, S. & Stayman, J. W., Jul 1 2019, In : Journal of Medical Imaging. 6, 3, 033504.

Research output: Contribution to journalArticle

Cone-Beam Computed Tomography
Tomography
Equipment and Supplies
Noise
X-Rays
2018

Dynamic beam filtering for miscentered patients

Mao, A., Shyr, W., Gang, J. & Stayman, J. W., Jan 1 2018, Medical Imaging 2018: Physics of Medical Imaging. SPIE, Vol. 10573. 105730U

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Modulation
dosage
modulation
scanners
Image acquisition

Dynamic fluence field modulation for miscentered patients in computed tomography

Mao, A., Gang, J., Shyr, W., Levinson, R., Siewerdsen, J., Kawamoto, S. & Stayman, J. W., Oct 1 2018, In : Journal of Medical Imaging. 5, 4, 043501.

Research output: Contribution to journalArticle

Tomography
Equipment and Supplies
Noise
X-Rays

Joint optimization of fluence field modulation and regularization for multi-task objectives

Gang, J. & Stayman, J. W., Jan 1 2018, Medical Imaging 2018: Physics of Medical Imaging. SPIE, Vol. 10573. 1057313

Research output: Chapter in Book/Report/Conference proceedingConference contribution

fluence
Modulation
modulation
optimization
Liver

Predicting image properties in penalized-likelihood reconstructions of flat-panel CBCT

Wang, W., Gang, J., Siewerdsen, J. & Stayman, J. W., Jan 1 2018, (Accepted/In press) In : Medical Physics.

Research output: Contribution to journalArticle

Noise
Cone-Beam Computed Tomography
X-Rays
Computer-Assisted Image Processing
Validation Studies

Prospective image quality analysis and control for prior-image-based reconstruction of low-dose CT

Zhang, H., Gang, J., Dang, H., Sussman, M. C., Lin, C., Siewerdsen, J. & Stayman, J. W., Jan 1 2018, Medical Imaging 2018: Physics of Medical Imaging. SPIE, Vol. 10573. 1057329

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Computer-Assisted Image Processing
Quality Control
Image quality
Image reconstruction
dosage

Regularization Analysis and Design for Prior-Image-Based X-ray CT Reconstruction

Zhang, H., Gang, J., Dang, H. & Stayman, J. W., Jun 13 2018, (Accepted/In press) In : IEEE Transactions on Medical Imaging.

Research output: Contribution to journalArticle

X Ray Computed Tomography
Computer-Assisted Image Processing
Tomography
X rays
Electric current measurement

Spatial resolution and noise prediction in flat-panel cone-beam CT penalized-likelihood reconstruction

Wang, W., Gang, J., Siewerdsen, J. & Stayman, J. W., Jan 1 2018, Medical Imaging 2018: Physics of Medical Imaging. SPIE, Vol. 10573. 1057346

Research output: Chapter in Book/Report/Conference proceedingConference contribution

noise prediction
Noise
Cones
cones
spatial resolution
2017

An investigation of low-dose 3D scout scans for computed tomography

Gomes, J., Gang, J., Mathews, A. & Stayman, J. W., 2017, Medical Imaging 2017: Physics of Medical Imaging. SPIE, Vol. 10132. 101322M

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Patient Positioning
Tomography
tomography
acquisition
dosage

Experimental evaluation of dual multiple aperture devices for fluence field modulated x-ray computed tomography

Mathews, A. J., Gang, J., Levinson, R., Zbijewski, W., Kawamoto, S., Siewerdsen, J. & Stayman, J. W., 2017, Medical Imaging 2017: Physics of Medical Imaging. SPIE, Vol. 10132. 101322O

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Tomography
fluence
tomography
apertures
Modulation

Image quality and dose for a multisource cone-beam CT extremity scanner

Gang, J., Zbijewski, W., Mahesh, M., Thawait, G., Packard, N., Yorkston, J., Demehri, S. & Siewerdsen, J., Jan 1 2017, (Accepted/In press) In : Medical Physics.

Research output: Contribution to journalArticle

Cone-Beam Computed Tomography
Artifacts
Extremities
Electrodes
Joints

Integration of prior CT into CBCT reconstruction for improved image quality via reconstruction of difference: First patient studies

Zhang, H., Gang, J., Lee, J., Wong, J. & Stayman, J. W., 2017, Medical Imaging 2017: Physics of Medical Imaging. SPIE, Vol. 10132. 1013211

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Computer-Assisted Image Processing
Image quality
Radiotherapy
Workflow
Planning

Joint optimization of fluence field modulation and regularization in task-driven computed tomography

Gang, J., Siewerdsen, J. & Stayman, J. W., 2017, Medical Imaging 2017: Physics of Medical Imaging. SPIE, Vol. 10132. 101320E

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Tomography
Anatomy
fluence
tomography
Modulation
Anisotropy
Abdomen
Noise
Task Performance and Analysis
Kidney
Abdomen
Tomography
Modulation
Weights and Measures
Imaging techniques
2016

Fluence-field modulated x-ray CT using multiple aperture devices

Stayman, J. W., Mathews, A., Zbijewski, W., Gang, J., Siewerdsen, J., Kawamoto, S., Blevis, I. & Levinson, R., 2016, Medical Imaging 2016: Physics of Medical Imaging. SPIE, Vol. 9783. 97830X

Research output: Chapter in Book/Report/Conference proceedingConference contribution

fluence
apertures
Modulation
X-Rays
X rays

Self-calibration of cone-beam CT geometry using 3D-2D image registration

Ouadah, S., Stayman, J. W., Gang, J., Ehtiati, T. & Siewerdsen, J., Mar 10 2016, In : Physics in Medicine and Biology. 61, 7, p. 2613-2632 20 p.

Research output: Contribution to journalArticle

Calibration
Orbit
Cone-Beam Computed Tomography
Robotics
Artifacts

Task-driven tube current modulation and regularization design in computed tomography with penalized-likelihood reconstruction

Gang, J., Siewerdsen, J. & Stayman, J. W., 2016, Medical Imaging 2016: Physics of Medical Imaging. SPIE, Vol. 9783. 978324

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Anatomic Models
Abdomen
Tomography
Noise
Theoretical Models
2015

Characterization of 3D joint space morphology using an electrostatic model (with application to osteoarthritis)

Cao, Q., Thawait, G., Gang, J., Zbijewski, W., Reigel, T., Brown, T., Corner, B., Demehri, S. & Siewerdsen, J., Feb 7 2015, In : Physics in Medicine and Biology. 60, 3, p. 947-960 14 p.

Research output: Contribution to journalArticle

Static Electricity
Osteoarthritis
Joints
Area Under Curve
Knee

Self-calibration of cone-beam CT geometry using 3D-2D image registration: Development and application to tasked-based imaging with a Robotic C-arm

Ouadah, S., Stayman, J. W., Gang, G., Uneri, A., Ehtiati, T. & Siewerdsen, J. H., 2015, Medical Imaging 2015: Image-Guided Procedures, Robotic Interventions, and Modeling. SPIE, Vol. 9415. 94151D

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Image registration
Robotics
robotics
Calibration
Cones

Task-driven image acquisition and reconstruction in cone-beam CT

Gang, J., Stayman, J. W., Ehtiati, T. & Siewerdsen, J., Apr 21 2015, In : Physics in Medicine and Biology. 60, 8, p. 3129-3150 22 p., 3129.

Research output: Contribution to journalArticle

Cone-Beam Computed Tomography
Computer-Assisted Image Processing
Task Performance and Analysis
Anatomic Models
Noise

Task-driven imaging in cone-beam computed tomography

Gang, J., Stayman, J. W., Ouadah, S., Ehtiati, T. & Siewerdsen, J., 2015, Medical Imaging 2015: Physics of Medical Imaging. SPIE, Vol. 9412. 941220

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Cone-Beam Computed Tomography
Tomography
Noise
Cones
cones
2014

Cascaded systems analysis of photon counting detectors

Xu, J., Zbijewski, W., Gang, J., Stayman, J. W., Taguchi, K., Lundqvist, M., Fredenberg, E., Carrino, J. A. & Siewerdsen, J., Oct 1 2014, In : Medical Physics. 41, 10, 101907.

Research output: Contribution to journalArticle

Systems Analysis
Photons
Noise
Silicon
Technology

Cascaded systems modeling of signal, noise, and DQE for x-ray photon counting detectors

Xu, J., Zbijewski, W., Gang, J., Stayman, J. W., Taguchi, K., Lundqvist, M., Fredenberg, E., Carrino, J. A. & Siewerdsen, J., 2014, Progress in Biomedical Optics and Imaging - Proceedings of SPIE. SPIE, Vol. 9033. 903320

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Quantum efficiency
Photons
Noise
quantum efficiency
counting

Dual-energy cone-beam CT with a flat-panel detector: Effect of reconstruction algorithm on material classification

Zbijewski, W., Gang, J., Xu, J., Wang, A. S., Stayman, J. W., Taguchi, K., Carrino, J. A. & Siewerdsen, J., Feb 2014, In : Medical Physics. 41, 2, 021908.

Research output: Contribution to journalArticle

Cone-Beam Computed Tomography
Iodine
Noise
Primate T-lymphotropic virus 3
Knee

Noise, sampling, and the number of projections in cone-beam CT with a flat-panel detector

Zhao, Z., Gang, J. & Siewerdsen, J., 2014, In : Medical Physics. 41, 6, 061909.

Research output: Contribution to journalArticle

Noise
Cone-Beam Computed Tomography
Intuition
Computer-Assisted Image Processing
Noise
Systems Analysis
Tomography
2013

Modeling and control of nonstationary noise characteristics in filtered-backprojection and penalized likelihood image reconstruction

Gang, J., Stayman, J. W., Zbijewski, W. & Siewerdsen, J., 2013, Progress in Biomedical Optics and Imaging - Proceedings of SPIE. Vol. 8668. 86681G

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Computer-Assisted Image Processing
image reconstruction
Image reconstruction
Noise
Imaging techniques

Noise for reduction in material decomposition low-dose dual-energy cone-beam CT

Zbijewski, W., Gang, J., Wang, A. S., Stayman, J. W., Taguchi, K., Carrino, J. A. & Siewerdsen, J., 2013, Progress in Biomedical Optics and Imaging - Proceedings of SPIE. Vol. 8668. 866819

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Cone-Beam Computed Tomography
Noise
Cones
cones
Decomposition

TH‐A‐103‐03: Cascaded Systems Analysis of a Silicon‐Strip Photon Counting CT System

xu, J., Zbijewski, W., Gang, J., Fredenberg, E., Taguchi, K., Carrino, J., Stayman, J. W. & Siewerdsen, J., 2013, In : Medical Physics. 40, 6, p. 526 1 p.

Research output: Contribution to journalArticle

Systems Analysis
Photons
Noise
National Institutes of Health (U.S.)
Theoretical Models
2012

Cascaded systems analysis of noise and detectability in dual-energy cone-beam CT

Gang, J., Zbijewski, W., Stayman, J. W. & Siewerdsen, J., Aug 2012, In : Medical Physics. 39, 8, p. 5145-5156 12 p.

Research output: Contribution to journalArticle

Cone-Beam Computed Tomography
Systems Analysis
Noise
Computer-Assisted Image Processing
Iodine

Theoretical framework for the dual-energy cone-beam CT noise-power spectrum, NEQ, and tasked-based detectability index

Gang, J., Zbijewski, W., Stayman, J. W., Carrino, J. A. & Siewerdsen, J., 2012, Progress in Biomedical Optics and Imaging - Proceedings of SPIE. Vol. 8313. 83131J

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Cone-Beam Computed Tomography
noise spectra
Power spectrum
Noise
power spectra
2011
Fourier Analysis
Noise
Cone-Beam Computed Tomography
Orbit
Systems Analysis

Task-based modeling and optimization of a cone-beam CT scanner for musculoskeletal imaging

Prakash, P., Zbijewski, W., Gang, J., Ding, Y., Stayman, J. W., Yorkston, J., Carrino, J. A. & Siewerdsen, J., Oct 2011, In : Medical Physics. 38, 10, p. 5612-5629 18 p.

Research output: Contribution to journalArticle

Cone-Beam Computed Tomography
Noise
Cadaver
Extremities
Musculoskeletal System

WE‐G‐110‐01: Task‐Based Modeling and Optimization of a Dedicated Cone‐Beam CT Scanner for Musculoskeletal Imaging

Prakash, P., Gang, J., Zbijewski, W., Yorkston, J., Machado, A., Carrino, J. & Siewerdsen, J., 2011, In : Medical Physics. 38, 6, p. 3832 1 p.

Research output: Contribution to journalArticle

Systems Analysis
Noise
Cadaver
Musculoskeletal Development
Architectural Accessibility
Iodine
Musculoskeletal Development
National Institutes of Health (U.S.)
Radiology
Noise
2010

Anatomical background and generalized detectability in tomosynthesis and cone-beam CT

Gang, J., Tward, D. J., Lee, J. & Siewerdsen, J., May 2010, In : Medical Physics. 37, 5, p. 1948-1965 18 p.

Research output: Contribution to journalArticle

Noise
Systems Analysis
Cone-Beam Computed Tomography
Breast
Calcinosis

Diagnostic Performance of a Prototype Dual-Energy Chest Imaging System. ROC Analysis

Kashani, H., Varon, C. A., Paul, N. S., Gang, J., Van Metter, R., Yorkston, J. & Siewerdsen, J., Mar 2010, In : Academic Radiology. 17, 3, p. 298-308 11 p.

Research output: Contribution to journalArticle

Radiographic Image Enhancement
ROC Curve
Thorax
Lung
Area Under Curve

The generalized NEQ and detectability index for tomosynthesis and cone-beam CT: From cascaded systems analysis to human observers

Gang, J., Lee, J., Stayman, J. W., Tward, D. J., Zbijewski, W., Prince, J. L. & Siewerdsen, J., 2010, Progress in Biomedical Optics and Imaging - Proceedings of SPIE. PART 1 ed. Vol. 7622. 76220Y

Research output: Chapter in Book/Report/Conference proceedingConference contribution

systems analysis
Systems Analysis
Noise
Cones
cones
2009

Analysis of lung nodule detectability and anatomical clutter in tomosynthesis imaging of the chest

Yoon, S., Gang, J., Tward, D. J., Siewerdsen, J. & Fahrig, R., 2009, Progress in Biomedical Optics and Imaging - Proceedings of SPIE. Vol. 7258. 72581M

Research output: Chapter in Book/Report/Conference proceedingConference contribution

chest
nodules
clutter
lungs
Thorax

Development of a High-performance Dual-energy Chest Imaging System. Initial Investigation of Diagnostic Performance

Kashani, H., Gang, J., Shkumat, N. A., Varon, C. A., Yorkston, J., Van Metter, R., Paul, N. S. & Siewerdsen, J., Apr 2009, In : Academic Radiology. 16, 4, p. 464-476 13 p.

Research output: Contribution to journalArticle

Thorax
Lung
Noise
Tomography
Biopsy