Dr. George Hajdok Profile

Dr. George Hajdok

Medical Physicist/Assistant Professor at London Regional Cancer Program

SPIE Involvement:

Author

Publications (6)

Proceedings Article | 4 April 2022 Presentation + Paper

Effects of feature type and multiple scanners on brain metastasis stereotactic radiosurgery outcome prediction

David DeVries, Frank Lagerwaard, Jaap Zindler, Timothy Yeung, George Rodrigues, George Hajdok, Aaron Ward

Proceedings Volume 12033, 1203313 (2022) https://doi.org/10.1117/12.2611147

KEYWORDS: Radiotherapy, Scanners, Magnetic resonance imaging, Data modeling, Cancer, Brain, Neuroimaging, Machine learning, Feature extraction, Statistical analysis

Read Abstract +

Proceedings Article | 1 April 2016 Paper

Development of 3D ultrasound needle guidance for high-dose-rate interstitial brachytherapy of gynaecological cancers

J. Rodgers, D. Tessier, D. D'Souza, E. Leung, G. Hajdok, A. Fenster

Proceedings Volume 9790, 97900I (2016) https://doi.org/10.1117/12.2216546

KEYWORDS: Ultrasonography, Cancer, Visualization, Real time imaging, Rectum, 3D image processing, Computed tomography, Transducers, 3D metrology, 3D scanning

Read Abstract +

Proceedings Article | 6 May 2004 Paper

X-ray scatter in quantitative megavoltage computed tomography: implications for adaptive radiation therapy

George Hajdok, Jerry Battista, Ian Cunningham, Tomas Kron

Proceedings Volume 5368, (2004) https://doi.org/10.1117/12.535988

KEYWORDS: X-rays, X-ray computed tomography, Radiotherapy, Monte Carlo methods, Sensors, X-ray imaging, Bone, Polymethylmethacrylate, Signal attenuation, Photons

Read Abstract +

Proceedings Article | 6 May 2004 Paper

Can a Fourier-based cascaded-systems analysis describe noise in complex shift-variant spatially sampled detectors?

Ian Cunningham, Mike Sattarivand, George Hajdok, Jingwu Yao

Proceedings Volume 5368, (2004) https://doi.org/10.1117/12.534791

KEYWORDS: Sensors, Modulation transfer functions, Monte Carlo methods, Fiber optics, Signal detection, Interference (communication), Digital imaging, Fiber optics sensors, Imaging systems, Medical imaging

Read Abstract +

Proceedings Article | 6 May 2004 Paper

Penalty on the detective quantum efficiency from off-axis incident x rays

George Hajdok, Ian Cunningham

Proceedings Volume 5368, (2004) https://doi.org/10.1117/12.535933

KEYWORDS: X-rays, Modulation transfer functions, Monte Carlo methods, Sensors, X-ray detectors, Mammography, Quantum efficiency, X-ray imaging, Selenium, Point spread functions

Read Abstract +

Proceedings Article | 5 June 2003 Paper

Fundamental limitations imposed by x-ray interactions on the modulation transfer function of existing x-ray detectors

George Hajdok, Jerry Battista, Ian Cunningham

Proceedings Volume 5030, (2003) https://doi.org/10.1117/12.480359

KEYWORDS: X-ray detectors, X-rays, Modulation transfer functions, Sensors, Monte Carlo methods, Spatial resolution, Point spread functions, Medical imaging, Diagnostics, Selenium

Read Abstract +

Showing 5 of 6 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