Dr. Mohammadreza Negahdar Profile

Dr. Mohammadreza Negahdar

Scientist at IBM Research - Almaden

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Publications (8)

Proceedings Article | 15 February 2021 Presentation + Paper

Automatic localization of lung opacity in chest CT images: a real-world study

Yiting Xie, Deepta Rajan, Larissa Schudlo, Yusuke Takeuchi, Benedikt Graf, Adam Coy, Mohammadreza Negahdar, Vandana Mukherjee, David Beymer, Arun Krishnan

Proceedings Volume 11597, 1159707 (2021) https://doi.org/10.1117/12.2582197

KEYWORDS: Chest, Image segmentation, Data modeling, Algorithm development, Lung cancer, Opacity, Lung, Computed tomography

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Proceedings Article | 13 March 2019 Paper

Lung tissue characterization for emphysema differential diagnosis using deep convolutional neural networks

Mohammadreza Negahdar, David Beymer

Proceedings Volume 10950, 109503R (2019) https://doi.org/10.1117/12.2513044

KEYWORDS: Lung, Emphysema, Tissues, Diagnostics, Performance modeling, Convolutional neural networks, Computed tomography, Data modeling, Chronic obstructive pulmonary disease, 3D modeling

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Proceedings Article | 27 February 2018 Presentation + Paper

Automated volumetric lung segmentation of thoracic CT images using fully convolutional neural network

Mohammadreza Negahdar, David Beymer, Tanveer Syeda-Mahmood

Proceedings Volume 10575, 105751J (2018) https://doi.org/10.1117/12.2293723

KEYWORDS: Image segmentation, Lung, Computed tomography, 3D modeling, Convolutional neural networks, Medical imaging, 3D image processing, Data modeling, Image processing

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Proceedings Article | 3 March 2017 Presentation + Paper

Automatic extraction of disease-specific features from Doppler images

Mohammadreza Negahdar, Mehdi Moradi, Nripesh Parajuli, Tanveer Syeda-Mahmood

Proceedings Volume 10134, 101340N (2017) https://doi.org/10.1117/12.2253956

KEYWORDS: Continuous wave operation, Doppler effect, Heart, Echocardiography, Feature extraction, Video, Electrocardiography, Optical character recognition, Signal detection

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Proceedings Article | 29 March 2013 Paper

Strain as a novel index of regional pulmonary function from thoracic 4D CT images: in-vivo validation with tomographic SPECT ventilation and perfusion

Mohammadreza Negahdar, Neal Dunlap, Albert Zacarias, A. Cahid Civelek, Shiao Woo, Amir Amini

Proceedings Volume 8672, 867213 (2013) https://doi.org/10.1117/12.2009734

KEYWORDS: Single photon emission computed tomography, Lung, Computed tomography, X-ray computed tomography, Lung cancer, Tomography, X-rays, Radiotherapy, In vivo imaging, Optical flow

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Proceedings Article | 16 April 2012 Paper

A 3D optical flow technique based on mass conservation for deformable motion estimation from 4-D CT images of the lung

Mohammadreza Negahdar, Amir Amini

Proceedings Volume 8317, 83171F (2012) https://doi.org/10.1117/12.912628

KEYWORDS: Optical flow, Lung, Motion estimation, X-ray computed tomography, Image registration, 3D image processing, Medical imaging, Computed tomography, 3D modeling, X-ray imaging

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Proceedings Article | 16 April 2012 Paper

An automated landmark-based elastic registration technique for large deformation recovery from 4-D CT lung images

Mohammadreza Negahdar, Albert Zacarias, Rebecca Milam, Neal Dunlap, Shiao Woo, Amir Amini

Proceedings Volume 8317, 83171G (2012) https://doi.org/10.1117/12.912754

KEYWORDS: Image registration, Lung, Computed tomography, 3D modeling, Radiotherapy, Image segmentation, Data modeling, Tumors, Algorithm development, Lung cancer

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Proceedings Article | 9 March 2010 Paper

Tracking planar lung motion in 4D CT with optical flow: validations and comparison of global, local, and local-global methods

Mohammadreza Negahdar, Amir Amini

Proceedings Volume 7626, 762623 (2010) https://doi.org/10.1117/12.846003

KEYWORDS: Lung, Optical flow, Motion estimation, Image registration, Computed tomography, Optical tracking, Tumors, 4D CT imaging, X-ray computed tomography, Medical imaging

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Showing 5 of 8 publications

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