Mohammadreza Negahdar  Mohammadreza Negahdar photo       

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Research Staff Member
Almaden Research Center, San Jose, CA, USA
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2017

Dynamic CT Imaging of Volumetric Changes in Pulmonary Nodules Correlates with Physical Measurements of Stiffness
Frederick M Lartey, Marjan Rafat, Mohammadreza Negahdar, Andrey V Malkovskiy, Xinzhe Dong, Xiaoli Sun, Mei Li, Timothy Doyle, Jayakumar Rajadas, Edward E Graves, Billy W Loo, and Peter G Maxim
Radiotherapy and Oncology (Green Journal), 2017

Automatic Extraction of Disease-Specific Features from Doppler Images
Mohammadreza Negahdar, Mehdi Moradi, Nripesh Parajuli, and Tanveer Syeda-Mahmood.
SPIE Conference on Computer-Aided Diagnosis, 2017


2016

Medical Sieve: A Cognitive Assistant for Radiologists and Cardiologists
Tanveer Syeda-Mahmood, Eugene Walach, David Beymer, Flora Gilboa-Solomon, Mohammadreza Negahdar, et al.
SPIE Conference on Computer-Aided Diagnosis, 2016

CT Ventilation Functional Image-based IMRT Treatment Plans are Comparable to SPECT Ventilation Functional Image-based Plans
Satoshi Kida, Matthieu Bal, Sven Kabus, Mohammadreza Negahdar, Xin Shan, Billy W Loo, Paul J Keall, and Tokihiro Yamamoto.
Radiotherapy and Oncology (Green Journal) 118(3), 521-527, 2016

Neuron-Miner: An Advanced Tool for Morphological Search and Retrieval in Neuroscientific Image Databases
Sailesh Conjeti, Sepideh Mesbah, Mohammadreza Negahdar, Phillip L Rautenberg, Shaoting Zhang, Nassir Navab, Amin Katouzian.
Neuroinformatics 14(4), 369-385, 2016

A Cross-Modality Neural Network Transform for Semi-automatic Medical Image Annotation
Mehdi Moradi, Yufan Guo, Yaniv Gur, Mohammadreza Negahdar, Tanveer Syeda-Mahmood
Medical Image Computing and Computer-Assisted Intervention -- MICCAI 2016: 19th International Conference, Athens, Greece, October 17-21, 2016, Proceedings, Part II, pp. 300--307, Springer International Publishing

Identifying Patients at Risk for Aortic Stenosis through Multimodal Learning
Tanveer Syeda-Mahmood, Yufan Guo, Mehdi Moradi, David Beymer, Deepta Rajan, Yu Cao, Yaniv Gur, Mohammadreza Negahdar.
19th International Conference on Medical Image Computer Assisted Intervention (MICCAI), 2016


2015

Comparison of Four Dimensional Computed Tomography (4D CT) versus Breath Hold Images to Determine Pulmonary Nodule Elasticity
Mohammadreza Negahdar, Billy W Loo, and Peter G Maxim.
57th Annual Meeting of the American Association of Physicists in Medicine (AAPM), 2015

Noninvasive Pulmonary Nodule Elastometry by CT and Deformable Image Registration
Mohammadreza Negahdar, Carolina E Fasola, Amy S Yu, Rie v Eyben, Tokihiro Yamamoto, Maximilian Diehn, Dominik Fleischmann, Lu Tian, Billy W Loo, and Peter G Maxim.
Radiotherapy and Oncology (Green Journal) 115(1), 35-40, 2015


2014

Novel Lung Ventilation Imaging with Single Energy CT after Single Inhalation of Xenon: Comparison with SPECT Ventilation Images
Mohammadreza Negahdar, Tokihiro Yamamoto, David B Shultz, Laura Gable, Xin Shan, Erik Mittra, Maximilian Diehn, Billy W Loo, and Peter G Maxim.
56th Annual Meeting of the American Association of Physicists in Medicine (AAPM), 2014

Non-Invasive Pulmonary Nodule Elastometry by CT and Deformable Image Registration
Mohammadreza Negahdar, David B Shultz, Rie v Eyben, Carolina E Fasola, Amy S Yu, Lu Tian, Dominik Fleischmann, Laura Gable, Xin Shan, Maximilian Diehn, Billy W Loo, and Peter G Maxim.
56th Annual Meeting of the American Society for Radiation Oncology (ASTRO), 2014

First in Human High-Resolution Imaging of Regional Lung Function by Single Energy Xenon CT Compared to Ventilation SPECT
Mohammadreza Negahdar, Tokihiro Yamamoto, David B Shultz, Laura Gable, Xin Shan, Erik Mittra, Maximilian Diehn, Peter G Maxim, and Billy W Loo.
56th Annual Meeting of the American Society for Radiation Oncology (ASTRO), 2014

Non-Invasive Pulmonary Nodule Elastometry by CT and Deformable Image Registration
Mohammadreza Negahdar, David B Shultz, Rie v Eyben, Carolina E Fasola, Amy S Yu, Lu Tian, Dominik Fleischmann, Laura Gable, Xin Shan, Maximilian Diehn, Billy W Loo, and Peter G Maxim.
Journal of Thoracic Oncology, 2014


2013

Strain as a Novel Index of Regional Pulmonary Function from Thoracic 4-D CT: In-Vivo Validation with Tomographic SPECT Ventilation and Perfusion
Mohammadreza Negahdar, Neal Dunlap, Albert Zacarias, A Cahid Civelek, Shiao Y Woo, and Amir A Amini.
SPIE Conference on Biomedical Applications in Molecular, Structural, and Functional Imagin, 2013

Validation of Regional Lung Strain as a New Ventilation Metric with SPECT
Mohammadreza Negahdar, Neal Dunlap, Albert Zacarias, A Cahid Civelek, Shiao Y Woo, and Amir A Amini.
IEEE Int. Symposium on Biomedical Imaging (ISBI), 2013

Automated Tool for Determining Pulmonary Nodule Elasticity to Distinguish Malignant Nodules
Mohammadreza Negahdar, Billy W Loo, Maximilian Diehn, Lu Tian, Dominik Fleischmann, and Peter G Maxim.
55th Annual Meeting of the American Association of Physicists in Medicine (AAPM), 2013

Automated Pulmonary Nodule Elastometry as a Potential Diagnostic Tool
Mohammadreza Negahdar, Billy W Loo, Maximilian Diehn, Dominik Fleischmann, Lu Tian, and Peter G Maxim.
99th Annual Meeting of the Radiation Society of North America (RSNA), 2013


2012

A Novel Optical Flow Method for Myocardial Deformation Analysis from Tagged MRI
Mohammadreza Negahdar, Hui Wang, and Amir A Amini.
SCMR-ISMRM Workshop on Exploring New Dimensions of cardiovascular Flow and Motion, 2012

A 3-D Optical Flow Technique Based on Mass Conservation for Deformable Motion Estimation from 4-D CT Images of the Lung
Mohammadreza Negahdar and Amir A Amini.
SPIE Conference on Biomedical Applications in Molecular, Structural, and Functional Imaging, 2012
Chosen as a finalist in Medical Imaging Best Student Paper Award competition

An Automated Landmark-based Elastic registration Technique for large Deformation Recovery from 4-D CT Lung Images
Mohammadreza Negahdar, Albert Zacarias, Rebecca A Milam, Neal Dunlap, Shiao Y Woo, and Amir A Amini.
SPIE Conference on Biomedical Applications in Molecular, Structural, and Functional Imaging, 2012

Regional Lung Strains via a Volumetric Mass Conserving Optical Flow Model
Mohammadreza Negahdar and Amir A Amini.
IEEE Int. Symposium on Biomedical Imaging (ISBI), 2012

Strain as a Novel Index of Regional Function from Treatment Planning Thoracic 4-D CT
Mohammadreza Negahdar, Amir A Amini, Albert Zacarias, Bart L Lynch, Rebecca A Milam, Shiao Y Woo, and Neal Dunlap.
Chicago Multidisciplinary Symposium in Thoracic Oncology, 2012


2011

Planar Deformable Motion Estimation Incorporating Mass Conservation and Image Gradient Constancy
Mohammadreza Negahdar and Amir A Amini.
EEE Int. Symposium on Biomedical Imaging (ISBI), 2011
NIH travel grant award

Estimation of Affine Motion from Projection Data Using a Mass Conservation Model
Mohammadreza Negahdar and Amir A Amini.
33rd IEEE EMBS Annual Int. Conf., 2011

Multi-scale Optical Flow Including Normalized Mutual Information for Planar Deformable Lung Motion Estimation from 4-D CT
Mohammadreza Negahdar and Amir A Amini.
33rd IEEE EMBS Annual Int. Conf., 2011


2010

Tracking Planar Lung Motion in 4-D CT with Optical Flow: Validations and Comparison of Global, Local, and Local-Global Methods
Mohammadreza Negahdar and Amir A Amini
SPIE Conference on Biomedical Applications in Molecular, Structural, and Functional Imaging, 2010


2006

Automated Path Planning Algorithm for Virtual Bronchoscopy
Mohamadreza Negahdar, Alireza Ahmadian, Nassir Navab, and Kavous Firouznia.
Iranian Journal of Medical Physics (IJMP) 3(11), 51-62, 2006

Path Planning for Virtual Bronchoscopy
Mohamadreza Negahdar, Alireza Ahmadian, Nassir Navab, and Kavous Firouznia.
28th IEEE EMBS Annual Int. Conf., 2006

Stiff and Efficient Middle Axis Extraction of Airways for Virtual Bronchoscopy
Mohamadreza Negahdar, Alireza Ahmadian, and Nassir Navab.
Int. Conference of Telemedicine and e-Health, 2006




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