Publications

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2019
Mahmoud, M. N., M. A. Rushdi, I. Ewais, E. Hosny, H. Gewefel, and A. M. Mahmoud, "Computationally-efficient wavelet-based characterization of breast tumors using conventional B-mode ultrasound images", Medical Imaging 2019: Computer-Aided Diagnosis, vol. 10950: International Society for Optics and Photonics, pp. 109502G, 2019. Abstract
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Amin, M. N., M. A. Rushdi, R. N. Marzaban, A. Yosry, K. Kim, and A. M. Mahmoud, "Wavelet-based computationally-efficient computer-aided characterization of liver steatosis using conventional B-mode ultrasound images", Biomedical Signal Processing and Control, vol. 52: Elsevier, pp. 84-96, 2019. Abstract
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2018
Mora, P., K. Faulkner, A. M. Mahmoud, V. Gershan, A. Kausik, U. Zdesar, M. - E. Brandan, S. Kurt, J. Davidović, D. H. Salama, et al., "Improvement of early detection of breast cancer through collaborative multi-country efforts: Medical physics component.", Physica medica : PM : an international journal devoted to the applications of physics to medicine and biology : official journal of the Italian Association of Biomedical Physics (AIFB), vol. 48, pp. 127-134, 2018 Apr. Abstract

PURPOSE: The International Atomic Energy Agency (IAEA) through a Coordinated Research Project on "Enhancing Capacity for Early Detection and Diagnosis of Breast Cancer through Imaging", brought together a group of mammography radiologists, medical physicists and radiographers; to investigate current practices and improve procedures for the early detection of breast cancer by strengthening both the clinical and medical physics components. This paper addresses the medical physics component.

METHODS: The countries that participated in the CRP were Bosnia and Herzegovina, Costa Rica, Egypt, India, Kenya, the Frmr. Yug. Rep. of Macedonia, Mexico, Nigeria, Pakistan, Philippines, Slovenia, Turkey, Uganda, United Kingdom and Zambia. Ten institutions participated using IAEA quality control protocols in 9 digital and 3 analogue mammography equipment. A spreadsheet for data collection was generated and distributed. Evaluation of image quality was done using TOR MAX and DMAM2 Gold phantoms.

RESULTS: QC results for analogue equipment showed satisfactory results. QC tests performed on digital systems showed that improvements needed to be implemented, especially in thickness accuracy, signal difference to noise ratio (SDNR) values for achievable levels, uniformity and modulation transfer function (MTF). Mean glandular dose (MGD) was below international recommended levels for patient radiation protection. Evaluation of image quality by phantoms also indicated the need for improvement.

CONCLUSIONS: Common activities facilitated improvement in mammography practice, including training of medical physicists in QC programs and infrastructure was improved and strengthened; networking among medical physicists and radiologists took place and was maintained over time. IAEA QC protocols provided a uniformed approach to QC measurements.

Mahmoud, A. E. M., and M. T. M. Ali, Method and apparatus to measure tissue displacement and strain, : Google Patents, 2018. Abstract
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2016
Reynolds, J. S., T. W. Goldsmith, J. B. Day, A. A. Abaza, A. M. Mahmoud, A. A. Afshari, J. B. Barkley, L. E. Petsonk, M. L. Kashon, and D. G. Frazer, "Classification of voluntary cough airflow patterns for prediction of abnormal spirometry", JOURNAL OF BIOMEDICAL AND HEALTH INFORMATICS , vol. 20, issue 3, pp. 963-969, 2016.
2015
Ding, X., D. Dutta, A. M. Mahmoud, B. Tillman, S. Leers, and K. Kim, "An adaptive displacement estimation algorithm for improved reconstruction of thermal strain", IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, vol. 62, issue 1, pp. 138 - 151, 2015.
Ali, M. T., and A. M. Mahmoud, "Elastography Reconstruction from Ultrasound Brightness Mode Imaging Using Hierarchy Recursive Tracking", Annual Meeting Biomedical Engineering Society, Tampa, FL, USA, 2015.
Salah, M., M. Tarek, A. Sayed, and A. M. Mahmoud, "A Manufacturer Independent Ultrasound Elastography Add-On Module", International Tissue Elasticity Conference, Bardolino, Italy, 2015.
Kim, K., A. M. Mahmoud, and D. Dutta, Method and apparatus to detect lipid contents in tissues using ultrasound, : US Patent App. 14/409,378, 2015. Abstract
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2014
Mahmoud, A. M., X. Ding, D. Dutta, V. P. Singh, and K. Kim, "Detecting hepatic steatosis using ultrasound-induced thermal strain imaging: an ex vivo animal study", Physics in medicine and biology, vol. 59, no. 4: IOP Publishing, pp. 881, 2014. Abstract
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2013
Stephens, D. N., A. M. Mahmoud, X. Ding, S. Lucero, D. Dutta, F. T. H. Yu, X. Chen, and K. Kim, "Flexible integration of high-imaging-resolution and high-power arrays for ultrasound-induced thermal strain imaging (US-TSI)", Ultrasonics, Ferroelectrics and Frequency Control, IEEE Transactions on, vol. 60, issue 12: IEEE, pp. 2645-2656, 2013. Abstract
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Dutta, D., A. M. Mahmoud, S. A. Leers, and K. Kim, "Motion artifact reduction in ultrasound based thermal strain imaging of atherosclerotic plaques using time-series analysis", Ultrasonics, Ferroelectrics and Frequency Control, IEEE Transactions on, vol. 60, issue 8: IEEE, 2013. Abstract
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Mukdadi, O. M., A. M. Mahmoud, E. S. Chaves, and R. Crout, Non-Invasive Ultrasonic Gingival Tissue Diagnosis, : US Patent 20,130,029,293, 2013. Abstract
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Mahmoud, A. M., D. Dutta, L. Lavery, D. N. Stephens, F. S. Villanueva, and K. Kim, "Noninvasive Detection of Lipids in Atherosclerotic Plaque Using Ultrasound Thermal Strain ImagingInĀ Vivo Animal Study", Journal of the American College of Cardiology, vol. 62, issue 19: Journal of the American College of Cardiology, pp. 1804-1809, 2013. Abstract
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2012
Sayed, A., A. Mahmoud, E. Chaves, R. Crout, K. Sivaneri, and O. Mukdadi, "Assessment of Gingival Inflammation Using Ultrasound Imaging", ASME 2012 International Mechanical Engineering Congress and Exposition: American Society of Mechanical Engineers, pp. 953-960, 2012. Abstract
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Stephens, D. N., A. M. Mahmoud, D. Dutta, S. Lucero, and K. Kim, "Flexible integration of both high imaging resolution and high power arrays for Thermal Strain Imaging (TSI)", Ultrasonics Symposium (IUS), 2012 IEEE International: IEEE, pp. 941-944, 2012. Abstract
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Mahmoud, A. M., C. Sandoval, B. Teng, J. B. Schnermann, K. H. Martin, S. Jamal Mustafa, and O. M. Mukdadi, "High-resolution vascular tissue characterization in mice using 55 MHz ultrasound hybrid imaging", Ultrasonics: Elsevier, 2012. Abstract
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Dutta, D., A. M. Mahmoud, and K. Kim, "A time series analysis technique for effective thermal strain imaging in atherosclerotic plaques by reducing large cardiac motion induced artifacts", Ultrasonics Symposium (IUS), 2012 IEEE International: IEEE, pp. 1189-1192, 2012. Abstract
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2011
Dutta, D., A. M. Mahmoud, and K. Kim, Feasibility of Elastic and Compositional Characterization of an Arterial Plaque by Dual Mechanical Strain and Thermal Strain Imaging Using a Single Ultrasound Probe, , 2011. Abstract

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Mahmoud, A. M., O. M. Mukdadi, P. Ngan, and R. Crout, "High-resolution ultrasound imaging for jawbone surface", Biomedical Engineering (MECBME), 2011 1st Middle East Conference on: IEEE, pp. 252-255, 2011. Abstract
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Mahmoud, A. M., H. H. Ammar, O. M. Mukdadi, I. Ray, F. Imani, A. Chen, and J. F. Davalos, "Ultrasonic Evaluation of CFRP-Concrete Interface for Specimens under Temperature and Water-Immersion Aging Effects", Advances in FRP Composites in Civil Engineering: Springer Berlin Heidelberg, pp. 562-566, 2011. Abstract
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2010
Goldsmith, W. T., A. M. Mahmoud, J. S. Reynolds, W. G. McKinney, A. A. Afshari, A. A. Abaza, and D. G. Frazer, "A system for recording high fidelity cough sound and airflow characteristics", Annals of biomedical engineering, vol. 38, no. 2: Springer US, pp. 469–477, 2010. Abstract

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Mahmoud, A. M., P. Ngan, R. Crout, and O. M. Mukdadi, "High-resolution 3D ultrasound jawbone surface imaging for diagnosis of periodontal bony defects: an in vitro study", Annals of biomedical engineering, vol. 38, no. 11: Springer US, pp. 3409–3422, 2010. Abstract
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Frazer, D. G., A. M. Mahmoud, A. A. Abaza, W. T. Goldsmith, J. B. Day, J. S. Reynolds, J. B. Barkley, and E. L. Petsonk, "Identification of Subjects with Abnormal Lung Function Using Partial Flow-Volume Curves Generated During a Voluntary Cough", AMERICAN JOURNAL OF RESPIRATORY AND CRITICAL CARE MEDICINE, vol. 181: AMER THORACIC SOC 61 BROADWAY, FL 4, NEW YORK, NY 10006 USA, 2010. Abstract
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Mahmoud, A. M., H. H. Ammar, O. M. Mukdadi, I. Ray, F. S. Imani, A. Chen, and J. F. Davalos, "Non-destructive ultrasonic evaluation of CFRP–concrete specimens subjected to accelerated aging conditions", NDT & E International, vol. 43, no. 7: Elsevier, pp. 635–641, 2010. Abstract
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