Prof. Hassan Rivaz Profile

Prof. Hassan Rivaz

Assistant Professor at Concordia Univ

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Author

Publications (18)

Proceedings Article | 1 April 2024 Presentation + Paper

Two-dimensional displacement estimation using mixed second-order regularization in total variation-based ultrasound elastography

Md Ashikuzzaman, Hassan Rivaz, Muyinatu A. Lediju Bell

Proceedings Volume 12932, 129320A (2024) https://doi.org/10.1117/12.3005693

KEYWORDS: Ultrasonography, Elastography, Tissues, Signal to noise ratio, Detection and tracking algorithms, Deformation, Data acquisition, Computer simulations, Visualization, Sampling rates

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Proceedings Article | 10 April 2023 Poster + Paper

A deep learning approach for patchless estimation of ultrasound quantitative parametric image with uncertainty measurement

Ali K. Tehrani, Ivan Rosado-Mendez, Hayley Whitson, Hassan Rivaz

Proceedings Volume 12470, 1247010 (2023) https://doi.org/10.1117/12.2651583

KEYWORDS: Ultrasonography, Statistical analysis, Education and training, Deep learning, Data modeling, Tissues, Point spread functions, Measurement uncertainty, Backscatter, Scattering

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Proceedings Article | 10 April 2023 Poster + Paper

Deep ultrasound denoising without clean data

Sobhan Goudarzi, Hassan Rivaz

Proceedings Volume 12470, 124700Q (2023) https://doi.org/10.1117/12.2650041

KEYWORDS: Ultrasonography, Education and training, Signal to noise ratio, Denoising, Data modeling, Signal attenuation, Liver, Data analysis, Tissues, Breast

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Proceedings Article | 3 April 2023 Presentation + Paper

Uncertainty-aware transformer model for anatomical landmark detection in paraspinal muscle MRIs

Soorena Salari, Amirhossein Rasoulian, Michele Battie, Maryse Fortin, Hassan Rivaz, Yiming Xiao

Proceedings Volume 12464, 1246414 (2023) https://doi.org/10.1117/12.2653155

KEYWORDS: Magnetic resonance imaging, Anatomy, Transformers, Muscles, Object detection, Education and training, Detection and tracking algorithms, Machine learning, Image registration, Error analysis, Deep learning, Uncertainty analysis, Medical image processing

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Proceedings Article | 15 February 2021 Presentation + Paper

MPWC-Net++: evolution of optical flow pyramidal convolutional neural network for ultrasound elastography

Ali K. Tehrani, Hassan Rivaz

Proceedings Volume 11602, 1160206 (2021) https://doi.org/10.1117/12.2582316

KEYWORDS: Optical flow, Ultrasonography, Machine vision, Computer vision technology, Elastography, Feature extraction, Convolutional neural networks, Tissues, Signal analyzers

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Proceedings Article | 15 February 2021 Presentation + Paper

Deep classification of breast cancer in ultrasound images: more classes, better results with multi-task learning

Bahareh Behboodi, Hamze Rasaee, Ali K. Z. Tehrani, Hassan Rivaz

Proceedings Volume 11602, 116020S (2021) https://doi.org/10.1117/12.2581930

KEYWORDS: Ultrasonography, Image classification, Breast cancer, Breast, Mammography, Image segmentation, Feature extraction, Convolution, Transducers, Tissues

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Proceedings Article | 13 March 2017 Presentation + Paper

Ultrasound elastography: efficient estimation of tissue displacement using an affine transformation model

Hoda Sadat Hashemi, Mathieu Boily, Paul Martineau, Hassan Rivaz

Proceedings Volume 10139, 1013903 (2017) https://doi.org/10.1117/12.2254297

KEYWORDS: Elastography, Ultrasonography, Tissues, Affine motion model, Signal to noise ratio, In vivo imaging, Interference (communication), Image quality, Computer simulations, Optimization (mathematics)

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Proceedings Article | 1 April 2016 Paper

Dynamic programming on a tree for ultrasound elastography

Roozbeh Shams, Mathieu Boily, Paul Martineau, Hassan Rivaz

Proceedings Volume 9790, 97901F (2016) https://doi.org/10.1117/12.2217345

KEYWORDS: Statistical analysis, Ultrasonography, Elastography, Computer programming, Tissues, In vivo imaging, Image analysis, Real time image processing, Lithium, Data acquisition, Liver cancer

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Proceedings Article | 17 March 2015 Paper

Classification of kidney and liver tissue using ultrasound backscatter data

Fereshteh Aalamifar, Hassan Rivaz, Juan Cerrolaza, James Jago, Nabile Safdar, Emad Boctor, Marius Linguraru

Proceedings Volume 9419, 94190X (2015) https://doi.org/10.1117/12.2082300

KEYWORDS: Liver, Tissues, Kidney, Image segmentation, Feature extraction, 3D image processing, Backscatter, Speckle, Ultrasonography, Image quality

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Proceedings Article | 25 February 2012 Paper

Robust dynamic programming method for ultrasound elastography

Ioana Fleming, Hassan Rivaz, Emad Boctor, Gregory Hager

Proceedings Volume 8320, 83201K (2012) https://doi.org/10.1117/12.911879

KEYWORDS: Ultrasonography, Tissues, Elastography, Lithium, Computer programming, Amplitude modulation, Imaging technologies, In vivo imaging, Cancer, Image compression

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Proceedings Article | 26 March 2011 Paper

Ultrasound elastography using regularized phase-zero cost function initialized with dynamic programming

Shahin Sefati, Hassan Rivaz, Emad Boctor, Gregory Hager

Proceedings Volume 7968, 79681D (2011) https://doi.org/10.1117/12.878247

KEYWORDS: Computer programming, Signal to noise ratio, Tissues, Ultrasonography, Elastography, Medical imaging, Interference (communication), Image compression, Signal analyzers, Tumors

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Proceedings Article | 12 March 2010 Paper

Novel reconstruction and feature exploitation techniques for sensorless freehand 3D ultrasound

Hassan Rivaz, Hyun J. Kang, Philipp Stolka, Richard Zellars, Frank Wacker, Gregory Hager, Emad Boctor

Proceedings Volume 7629, 76291D (2010) https://doi.org/10.1117/12.846456

KEYWORDS: Ultrasonography, Calibration, Motion estimation, Tissues, Sensors, Speckle, 3D acquisition, Data acquisition, Image resolution, Error analysis

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Proceedings Article | 12 March 2010 Paper

A novel method for monitoring liver ablation using ultrasound elastography

Hassan Rivaz, Ankur Kapoor, Ioana Fleming, Gregory Hager, Emad Boctor

Proceedings Volume 7629, 762913 (2010) https://doi.org/10.1117/12.845453

KEYWORDS: Tumors, Tissues, Ultrasonography, Elastography, Image compression, Liver, Cancer, Signal processing, Visualization, Speckle

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Proceedings Article | 16 March 2009 Paper

Elasticity-based three dimensional ultrasound real-time volume rendering

Emad Boctor, Mohammad Matinfar, Omar Ahmad, Hassan Rivaz, Michael Choti, Russell Taylor

Proceedings Volume 7261, 72612V (2009) https://doi.org/10.1117/12.815166

KEYWORDS: Opacity, Ultrasonography, Volume rendering, 3D image processing, 3D acquisition, Tissues, Visualization, Data acquisition, Breast, Speckle

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Proceedings Article | 14 March 2009 Paper

Multi-modality fusion of CT, 3D ultrasound, and tracked strain images for breast irradiation planning

Pezhman Foroughi, Csaba Csoma, Hassan Rivaz, Gabor Fichtinger, Richard Zellars, Gregory Hager, Emad Boctor

Proceedings Volume 7265, 72651B (2009) https://doi.org/10.1117/12.812878

KEYWORDS: Ultrasonography, Computed tomography, Breast, Tissues, Transducers, Visualization, Breast cancer, Surgery, 3D image processing, Image fusion

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Proceedings Article | 13 March 2009 Paper

Ultrasound elastography: enabling technology for image guided laparoscopic prostatectomy

Ioana Fleming, Hassan Rivaz, Katarzyna Macura, Li-Ming Su, Ulrike Hamper, Gwen Lagoda, Arthur Burnett, Tamara Lotan, Russell Taylor, Gregory Hager, Emad Boctor

Proceedings Volume 7261, 72612I (2009) https://doi.org/10.1117/12.806507

KEYWORDS: Elastography, Prostate, Ultrasonography, Laparoscopy, Tissues, Nerve, Magnetic resonance imaging, Tumors, Cancer, Pathology

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Proceedings Article | 28 February 2009 Paper

Physical priors in virtual colonoscopy

Hassan Rivaz, Yoshihisa Shinagawa, Jianming Liang

Proceedings Volume 7260, 726019 (2009) https://doi.org/10.1117/12.813554

KEYWORDS: Colon, Liquids, Virtual colonoscopy, Solids, Signal attenuation, Computed tomography, Differential equations, Colorectal cancer, Calibration, Computer aided diagnosis and therapy

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Proceedings Article | 12 March 2007 Paper

A robust meshing and calibration approach for sensorless freehand 3D ultrasound

Hassan Rivaz, Emad Boctor, Gabor Fichtinger

Proceedings Volume 6513, 651318 (2007) https://doi.org/10.1117/12.712423

KEYWORDS: Ultrasonography, Calibration, Sensors, Motion estimation, Distance measurement, Tissues, Liver, 3D acquisition, Speckle, Image resolution

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Showing 5 of 18 publications

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