Scholars@Duke

• Background
• 

  Education, Training, & Certifications

  • Ph.D., Duke University 2018
• 

  Duke Appointment History

  • Assistant Professor in Radiology, Radiology, Clinical Science Departments 2020
• Research
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  Selected Grants

  • Simulation Tools for 3D and 4D CT and Dosimetry awarded by National Institutes of Health 2007 - 2024
• Publications & Artistic Works
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  Selected Publications

  • Academic Articles

    • Abadi, Ehsan, W. Paul Segars, Hamid Chalian, and Ehsan Samei. “Virtual Imaging Trials for Coronavirus Disease (COVID-19).” Ajr Am J Roentgenol 216, no. 2 (February 2021): 362–68. https://doi.org/10.2214/AJR.20.23429.
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    • Ria, Francesco, Wanyi Fu, Hamid Chalian, Ehsan Abadi, Paul W. Segars, Rafael Fricks, Pegah Khoshpouri, and Ehsan Samei. “A comparison of COVID-19 and imaging radiation risk in clinical patient populations.” J Radiol Prot, October 7, 2020. https://doi.org/10.1088/1361-6498/abbf3b.
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    • Abadi, Ehsan, William P. Segars, Benjamin M. W. Tsui, Paul E. Kinahan, Nick Bottenus, Alejandro F. Frangi, Andrew Maidment, Joseph Lo, and Ehsan Samei. “Virtual clinical trials in medical imaging: a review.” J Med Imaging (Bellingham) 7, no. 4 (July 2020): 042805. https://doi.org/10.1117/1.JMI.7.4.042805.
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    • Abadi, Ehsan, William P. Segars, Brian Harrawood, Shobhit Sharma, Anuj Kapadia, and Ehsan Samei. “Virtual clinical trial for quantifying the effects of beam collimation and pitch on image quality in computed tomography.” J Med Imaging (Bellingham) 7, no. 4 (July 2020): 042806. https://doi.org/10.1117/1.JMI.7.4.042806.
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    • Setiawan, H., E. Abadi, F. Ria, W. Fu, T. B. Smith, and E. Samei. “Patient-informed modelling of hepatic contrast dynamics in contrast-enhanced CT imaging.” Progress in Biomedical Optics and Imaging  Proceedings of Spie 11312 (January 1, 2020). https://doi.org/10.1117/12.2548879.
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    • Sharma, Shobhit, Anuj Kapadia, Wanyi Fu, Ehsan Abadi, W Paul Segars, and Ehsan Samei. “A real-time Monte Carlo tool for individualized dose estimations in clinical CT.” Phys Med Biol 64, no. 21 (November 4, 2019): 215020. https://doi.org/10.1088/1361-6560/ab467f.
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    • Cheng, Yuan, Ehsan Abadi, Taylor Brunton Smith, Francesco Ria, Mathias Meyer, Daniele Marin, and Ehsan Samei. “Validation of algorithmic CT image quality metrics with preferences of radiologists.” Med Phys 46, no. 11 (November 2019): 4837–46. https://doi.org/10.1002/mp.13795.
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    • Cheng, Yuan, Ehsan Abadi, Taylor Brunton Smith, Francesco Ria, Mathias Meyer, Daniele Marin, and Ehsan Samei. “Validation of algorithmic CT image quality metrics with preferences of radiologists.” Medical Physics 46, no. 11 (November 1, 2019): 4837–46. https://doi.org/10.1002/mp.13795].
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    • Abadi, Ehsan, Brian Harrawood, Jayasai R. Rajagopal, Shobhit Sharma, Anuj Kapadia, William Paul Segars, Karl Stierstorfer, Martin Sedlmair, Elizabeth Jones, and Ehsan Samei. “Development of a scanner-specific simulation framework for photon-counting computed tomography.” Biomed Phys Eng Express 5, no. 5 (August 2019). https://doi.org/10.1088/2057-1976/ab37e9.
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    • Robins, Marthony, Justin Solomon, Jocelyn Hoye, Ehsan Abadi, Daniele Marin, and Ehsan Samei. “Systematic analysis of bias and variability of texture measurements in computed tomography.” J Med Imaging (Bellingham) 6, no. 3 (July 2019): 033503. https://doi.org/10.1117/1.JMI.6.3.033503.
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    • Abadi, Ehsan, Brian Harrawood, Shobhit Sharma, Anuj Kapadia, William P. Segars, and Ehsan Samei. “DukeSim: A Realistic, Rapid, and Scanner-Specific Simulation Framework in Computed Tomography.” Ieee Trans Med Imaging 38, no. 6 (June 2019): 1457–65. https://doi.org/10.1109/TMI.2018.2886530.
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    • Abadi, Ehsan, William P. Segars, Gregory M. Sturgeon, Brian Harrawood, Anuj Kapadia, and Ehsan Samei. “Modeling "Textured" Bones in Virtual Human Phantoms.” Ieee Trans Radiat Plasma Med Sci 3, no. 1 (January 2019): 47–53. https://doi.org/10.1109/TRPMS.2018.2828083.
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    • Abadi, Ehsan, William P. Segars, Gregory M. Sturgeon, Justus E. Roos, Carl E. Ravin, and Ehsan Samei. “Modeling Lung Architecture in the XCAT Series of Phantoms: Physiologically Based Airways, Arteries and Veins.” Ieee Trans Med Imaging 37, no. 3 (March 2018): 693–702. https://doi.org/10.1109/TMI.2017.2769640.
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    • Abadi, Ehsan, Pooyan Sahbaee, and Ehsan Samei. “Effect of Iodine-based Contrast Material on Radiation Dose at CT.” Radiology 285, no. 3 (December 2017): 1053–54. https://doi.org/10.1148/radiol.2017171523.
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    • Abadi, Ehsan, Jeremiah Sanders, and Ehsan Samei. “Patient-specific quantification of image quality: An automated technique for measuring the distribution of organ Hounsfield units in clinical chest CT images.” Med Phys 44, no. 9 (September 2017): 4736–46. https://doi.org/10.1002/mp.12438.
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    • Sahbaee, Pooyan, Ehsan Abadi, W Paul Segars, Daniele Marin, Rendon C. Nelson, and Ehsan Samei. “The Effect of Contrast Material on Radiation Dose at CT: Part II. A Systematic Evaluation across 58 Patient Models.” Radiology 283, no. 3 (June 2017): 749–57. https://doi.org/10.1148/radiol.2017152852.
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    • Abadi, E., J. Sanders, G. Agasthya, P. Segars, and E. Samei. “TH-AB-207A-01: Contrast-Enhanced CT: Correlation of Radiation Dose and Biological Effect.” Med Phys 43, no. 6 (June 2016): 3859. https://doi.org/10.1118/1.4958077.
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    • Sanders, J., E. Abadi, B. Meng, and E. Samei. “SU-F-I-45: An Automated Technique to Measure Image Contrast in Clinical CT Images.” Med Phys 43, no. 6 (June 2016): 3397. https://doi.org/10.1118/1.4955873.
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    • Faranoush, Mohammad, Amir Abbas Hedayati Asl, Azim Mehrvar, Narjes Mehrvar, Rokhsaneh Zangooei, Ehsan Abadi, Mardawig Alebouyeh, and Maryam Tashvighi. “Consequences of delayed diagnosis in treatment of retinoblastoma.” Iran J Pediatr 24, no. 4 (August 2014): 381–86.
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    • Setiawan, Hananiel, Francesco Ria, Ehsan Abadi, Wanyi Fu, Taylor B. Smith, and Ehsan Samei. “Modeling Patient-Informed Liver Contrast Perfusion in Contrast-enhanced Computed Tomography.” J Comput Assist Tomogr 44, no. 6 (n.d.): 882–86. https://doi.org/10.1097/RCT.0000000000001095.
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    • Sharma, Shobhit, Ehsan Abadi, Anuj J. Kapadia, Paul W. Segars, and Ehsan Samei. “A GPU-accelerated framework for rapid estimation of scanner-specific scatter in CT for virtual imaging trials.” Physics in Medicine & Biology, n.d. https://doi.org/10.1088/1361-6560/abeb32.
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  • Conference Papers

    • Abadi, Ehsan, William Segars, Shobit Sharma, Francesco Ria, Hamid Chalian, and Ehsan Samei. “Virtual Imaging Trials for Novel Coronavirus Disease (COVID-19),” 2020.
    • “THE 2020 AAPM ANNUAL MEETING PROGRAM.” In Med Phys, 47:e255-2720, 2020. https://doi.org/10.1002/mp.14316.
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    • Abadi, E., J. Rajagopal, T. Sauer, E. Jones, W. P. Segars, and E. Samei. “Optimization of energy thresholds in photon-counting CT via a virtual clinical trial.” In Progress in Biomedical Optics and Imaging  Proceedings of Spie, Vol. 11312, 2020. https://doi.org/10.1117/12.2549055.
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    • Samei, E., E. Abadi, A. Kapadia, J. Lo, M. Mazurowski, and P. Segars. “Virtual imaging trials: An emerging experimental paradigm in imaging research and practice.” In Progress in Biomedical Optics and Imaging  Proceedings of Spie, Vol. 11312, 2020. https://doi.org/10.1117/12.2549818.
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    • Smith, T. B., E. Abadi, T. J. Sauer, W. Fu, J. Solomon, and E. Samei. “In vivo noise texture estimation: Development and validation of an automated methodology.” In Progress in Biomedical Optics and Imaging  Proceedings of Spie, Vol. 11312, 2020. https://doi.org/10.1117/12.2549268.
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    • Tanaka, R., E. Samei, W. P. Segars, E. Abadi, I. Matsumoto, M. Tamura, N. Ishihara, and T. Yamashiro. “Prediction of pleural invasion of lung cancer with dynamic chest radiography: A simulation study.” In Progress in Biomedical Optics and Imaging  Proceedings of Spie, Vol. 11312, 2020. https://doi.org/10.1117/12.2547464.
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    • Abadi, E., B. Harrawood, J. Rajagopal, S. Sharma, A. Kapadia, M. Sedlmair, J. C. Ramirez, K. Stierstorfer, W. P. Segars, and E. Samei. “A framework for realistic virtual clinical trials in photon counting computed tomography.” In Progress in Biomedical Optics and Imaging  Proceedings of Spie, Vol. 10948, 2019. https://doi.org/10.1117/12.2512898.
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    • Abadi, E., W. P. Segars, B. Harrawood, S. Sharma, T. Sauer, A. Kapadia, and E. Samei. “Trade-off between spatial details and motion artifact in multi-detector CT: A virtual clinical trial with 4D textured human models.” In Progress in Biomedical Optics and Imaging  Proceedings of Spie, Vol. 10948, 2019. https://doi.org/10.1117/12.2512891.
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    • Fu, W., S. Sharma, T. Smith, R. Hou, E. Abadi, V. Selvakumaran, R. Tang, et al. “Multi-organ segmentation in clinical-computed tomography for patient-specific image quality and dose metrology.” In Progress in Biomedical Optics and Imaging  Proceedings of Spie, Vol. 10948, 2019. https://doi.org/10.1117/12.2512883.
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    • Rajagopal, J. R., P. Sahbaee, E. Abadi, A. H. Negussie, W. F. Pritchard, B. J. Wood, E. C. Jones, and E. Samei. “Impact of energy threshold on material quantification of contrast agents in photon-counting CT.” In Progress in Biomedical Optics and Imaging  Proceedings of Spie, Vol. 10948, 2019. https://doi.org/10.1117/12.2512944.
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    • Sauer, T. J., E. Abadi, P. Segars, and E. Samei. “Anatomically- and computationally-informed hepatic contrast perfusion simulations for use in virtual clinical trials.” In Progress in Biomedical Optics and Imaging  Proceedings of Spie, Vol. 10948, 2019. https://doi.org/10.1117/12.2513465.
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    • Setiawan, H., E. Abadi, W. Fu, T. B. Smith, and E. Samei. “Patient-informed and physiology-based modelling of contrast dynamics in cross-sectional imaging.” In Progress in Biomedical Optics and Imaging  Proceedings of Spie, Vol. 10948, 2019. https://doi.org/10.1117/12.2513431.
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    • Sharma, S., E. Abadi, A. Kapadia, W. P. Segars, and E. Samei. “A comprehensive GPU-based framework for scatter estimation in single source, dual source, and photon-counting CT.” In Progress in Biomedical Optics and Imaging  Proceedings of Spie, Vol. 10948, 2019. https://doi.org/10.1117/12.2513198.
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    • Tanaka, R., E. Samei, P. Segars, E. Abadi, H. Roth, H. Oda, and K. Mori. “Dynamic chest radiography for pulmonary function diagnosis: A validation study using 4D extended cardiac-torso (XCAT) phantom.” In Progress in Biomedical Optics and Imaging  Proceedings of Spie, Vol. 10948, 2019. https://doi.org/10.1117/12.2512332.
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    • Lacy, T., aiping Ding, ehsan Abadi, yakun Zhang, F. Ria, E. Samei, and D. P. Frush. “Beyond the DRL: Applying Automated Quality Metrics to Assess Pediatric CT Program Liver Lesion Detection Performance,” 2018.
    • Lacy, tyler, aiping Ding, E. Abadi, yakun Zhang, F. Ria, E. Samei, and D. P. Frush. “A Novel Methodology for Automated Image Quality Assessment of Pediatric CT,” 2018.
    • Abadi, E., P. Segars, B. Harrawood, S. Sharma, A. Kapadia, and F. Samei. “Incorporating Respiratory Motion to High-Resolution Textured Computational Phantoms to Simulate Realistic Free-Breathing CT Images.” In Medical Physics, 45:E638–E638. WILEY, 2018.
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    • Fenoli, J., S. Sharma, E. Abadi, P. Segars, E. Samei, and A. Kapadia. “Organ Dose Heterogeneity in Chest and Abdominopelvic CT Scans for a Population of Adult and Pediatric Phantoms: A Virtual Clinical Trial Study.” In Medical Physics, 45:E153–E153. WILEY, 2018.
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    • Sharma, S., E. Abadi, P. Segars, A. Kapadia, and E. Samei. “A Real-Time Monte-Carlo Simulation Technique for Dose and Scatter Estimation in Virtual Clinical Trials for CT Imaging.” In Medical Physics, 45:E689–E689. WILEY, 2018.
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    • Abadi, E., B. Harrawood, A. Kapadia, W. P. Segars, and E. Samei. “Development of a fast, voxel-based, and scanner-specific CT simulator for image-quality-based virtual clinical trials.” In Progress in Biomedical Optics and Imaging  Proceedings of Spie, Vol. 10573, 2018. https://doi.org/10.1117/12.2293123.
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    • Abadi, E., W. P. Segars, B. Harrawood, A. Kapadia, and E. Samei. “Virtual clinical trial in action: Textured XCAT phantoms and scanner-specific CT simulator to characterize noise across CT reconstruction algorithms.” In Progress in Biomedical Optics and Imaging  Proceedings of Spie, Vol. 10573, 2018. https://doi.org/10.1117/12.2294599.
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    • Fu, W., W. P. Segars, E. Abadi, S. Sharma, A. J. Kapadia, and E. Samei. “From patient-informed to patient-specific organ dose estimation in clinical computed tomography.” In Progress in Biomedical Optics and Imaging  Proceedings of Spie, Vol. 10573, 2018. https://doi.org/10.1117/12.2294954.
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    • Robins, M., J. Solomon, J. Hoye, E. Abadi, D. Marin, and E. Samei. “How reliable are texture measurements?” In Progress in Biomedical Optics and Imaging  Proceedings of Spie, Vol. 10573, 2018. https://doi.org/10.1117/12.2294591.
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    • Sauer, T. J., E. Abadi, J. Solomon, J. M. Hoye, and E. Samei. “Realistic lesion simulation: Application of hyperelastic deformation to lesion-local environment in lung CT.” In Progress in Biomedical Optics and Imaging  Proceedings of Spie, Vol. 10573, 2018. https://doi.org/10.1117/12.2294962.
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    • Sharma, S., A. Kapadia, E. Abadi, W. Fu, W. P. Segars, and E. Samei. “A rapid GPU-based Monte Carlo simulation tool for individualized dose estimations in CT.” In Progress in Biomedical Optics and Imaging  Proceedings of Spie, Vol. 10573, 2018. https://doi.org/10.1117/12.2294965.
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    • Ding, A., T. Smith, E. Abadi, F. Ria, J. Wilson, and E. Samei. “Robustness and Accuracy of An Automated Solution for Measuring Image Noise, Spatial Resolution, Contrast, and Dose in Clinical CT Images: Efforts Towards Patient-Specific Quantifications of CT Image Quality and Radiation Dose.” In Medical Physics, 6:3023–24. American Association of Physicists in Medicine, 2017.
    • Hoye, J., Y. Zhang, W. fu, E. Abadi, F. Ria, A. Kapadia, P. Segars, and E. Samei. “Organ Dose Estimation for CT Localizer Images.” In Medical Physics, 6:3301–3301. American Association of Physicists in Medicine, 2017.
    • Smith, T., E. Abadi, A. Ding, F. Ria, and E. samei. “Image Quality Monitoring: Variability in Contrast Enhancement Across a Clinical Population.” In Medical Physics, 6:3167–68. American Association of Physicists in Medicine, 2017.
    • Ding, A., T. Smith, E. Abadi, F. Ria, J. Wilson, and E. Samei. “Robustness and Accuracy of An Automated Solution for Measuring Image Noise, Spatial Resolution, Contrast, and Dose in Clinical CT Images: Efforts Towards Patient-Specific Quantifications of CT Image Quality and Radiation Dose.” In Medical Physics, 44:3023–24. WILEY, 2017.
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    • Hoye, J., Y. Zhang, W. Fu, E. Abadi, F. Ria, A. Kapadia, P. Segars, and E. Samei. “Organ Dose Estimation for CT Localizer Images.” In Medical Physics, 44:3301–3301. WILEY, 2017.
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    • Smith, T., E. Abadi, A. Ding, F. Ria, and E. Samei. “Image Quality Monitoring: Variability in Contrast Enhancement Across a Clinical Population.” In Medical Physics, 44:3167–68. WILEY, 2017.
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    • Abadi, E., G. M. Sturgeon, G. Agasthya, B. Harrawood, C. Hoeschen, A. Kapadia, W. P. Segars, and E. Samei. “Airways, vasculature, and interstitial tissue: Anatomically informed computational modeling of human lungs for virtual clinical trials.” In Progress in Biomedical Optics and Imaging  Proceedings of Spie, Vol. 10132, 2017. https://doi.org/10.1117/12.2254739.
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    • Abadi, E., H. Soltanian-Zadeh, L. Scarpace, and T. Mikkelsen. “Prediction of glioblastoma multiforme response to bevacizumab treatment using diffusion and perfusion imaging.” In 2015 22nd Iranian Conference on Biomedical Engineering, Icbme 2015, 314–18, 2016. https://doi.org/10.1109/ICBME.2015.7404162.
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    • Sahbaee, P., E. Abadi, J. Sanders, M. Becchetti, Y. Zhang, G. Agasthya, P. Segars, and E. Samei. “A technique for multi-dimensional optimization of radiation dose, contrast dose, and image quality in CT imaging.” In Progress in Biomedical Optics and Imaging  Proceedings of Spie, Vol. 9783, 2016. https://doi.org/10.1117/12.2216516.
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    • Mehrvar, A., A. A. Hedayati-Asl, M. Faranoush, E. Abadi, N. Mehrvar, and M. Tashvighi. “THERAPEUTIC MANAGEMENT OF CHILDHOOD AML AT MPCTRC: A SINGLE CENTER STUDY.” In Haematologica, 99:570–71. FERRATA STORTI FOUNDATION, 2014.
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