Publications

• Mohamed S. Hefny, Jacob J. Peoples, Michelle Zec, David R. Pichora, and Randy E. Ellis. "Atlas-Based Scaphoid Fixation Planning," In Proceedings of the Computer Assisted Orthopaedic Surgery (CAOS) 2016.

• Mohamed S. Hefny, Jacob J. Peoples, Michelle Zec, David R. Pichora, and Randy E. Ellis. "Topologically Consistent Triangulation for Computer Assisted Surgery Planning," International Journal of Computer Assisted Radiology and Surgery, Vol. 11, No. SUPP 1, 2016, pp. S109–S111.

• Mohamed S. Hefny, Toshiyuki Okada, Masatoshi Hori, Yoshinobu Sato and Randy E. Ellis. "A Liver Atlas Using the Special Euclidean Group," A. Frangi et al. (Eds.): MICCAI 2015, Part II, LNCS 9350, pp. 238–245, 2015.

• Mohamed S. Hefny, John F. Rudan, and Randy E. Ellis. "Lie Group Shape Models: A Core Technology for a Computer-Assisted Suregry Open Framework," In Proceedings of the Computer Assisted Orthopaedic Surgery (CAOS) 2015.

• Mohamed S. Hefny, John F. Rudan, and Randy E. Ellis. "Computer Assisted Hip Resurfacing Planning Using Lie Group Shape Models," International Journal of Computer Assisted Radiology and Surgery, Vol. 10, No. 6, 2015, 707–715.

• Mohamed S. Hefny, John F. Rudan, and Randy E. Ellis "A Matrix Lie Group Approach to Statistical Shape Analysis of Bones," Studies in Health Technology and Informatics, Vol. 196, 2014, 163–169.

• Mohamed S. Hefny, David R. Pichora, John F. Rudan, and Randy E. Ellis. "Manifold Statistical Shape Analysis of the Distal Radius," International Journal of Computer Assisted Radiology and Surgery, Vol. 9, No. SUPP 1, 2014, S35–S42.

• Mohamed S. Hefny and Randy E. Ellis "A Statistical Shape Model of Femoral Head-Neck Cross Sections Using Principal Tangent Components," The IEEE International Symposium on Biomedical Imaging, 2013, 89–92.

• Mohamed S. Hefny, John F. Rudan, and Randy E. Ellis "Next Generation Bone Morphology Analysis: a Principal Tangent Component Framework," Bone and Joint Journal, Vol. 95-B, No. SUPP 28, 2013, 122.

• Mohamed S. Hefny, Andrew W.L. Dickenson, Andrew E. Giles, Gavin C.A. Wood and Randy E. Ellis "The Aspherical Human Hip: Implication for Early Osteoarthritis," Studies in Health Technology and Informatics, Vol. 184, 2013, 195–201.

• Sharyle Fowler, Mohamed S. Hefny, Elvis C.S. Chen, Randy E. Ellis, Dale Mercer, Diederick Jalink, Andrew Samis, and Lawrence C. Hookey "A Prospective, Randomized Assessment of a Spatial Orientation Device in Natural Orifice Transluminal Endoscopic Surgery," Gastrointestinal Endoscopy Journal, Vol. 37, Issue 1, 2011, 123–127. 

• Mohamed S. Hefny and Randy E. Ellis "Wavelet-Based Variational Deformable Registration for Ultrasound," The IEEE International Symposium on Biomedical Imaging (ISBI) 2010, 1017–1020.

• Mohamed S. Hefny and Randy E. Ellis "A Swarm Intelligence Approach To Ultrasound Segmentation of Bone Surfaces," In Proceedings of the Computer Assisted Orthopaedic Surgery (CAOS) 2009.

• Mohamed S. Hefny, Purang Abolmaesumi, Zahra Karimaghaloo, David G. Gobbi, Randy E. Ellis, and Gabor Fichtinger "Quantification of Edematic Effects in Prostate Brachytherapy Interventions", D. Metaxas et al. (Eds.): MICCAI 2008, Part II, LNCS 5242, pp. 493–500, 2008.

• Ashraf M. Abdelbar and Mohamed S. Hefny "An Efficient LP-Based Admissible Heuristic for Cost-Based Abduction," Journal of Experimental and Theoretical Artificial Intelligence, Vol. 17, 2005, 297–303.

• Mohamed S. Hefny and Hassanein H. Amer "Design of an Improved Watchdog Circuit for Micro-controller-Based Systems." The 11th International Conference on Microelectronics (ICM'99), Kuwait, November 1999.

Theses

• Mohamed S. Hefny. "Analysis of Discrete Shapes Using Lie Groups." PhD Dissertation, School of Computing, Queen's University, 2014.

• Mohamed S. Hefny. "A New Linear-Programming Based Admissible Heuristic for Cost-Based Abduction." Master's Thesis, The American University in Cairo, 2001.