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Systems and Computer
Engineering

Most up-to-date record of publications is available at Google Scholar or Pub Med.

Peer Reviewed Articles

  1. J. Cheng, E. Ukwatta, S. Shavakh, T.W.S. Chow, G. Parraga, J.D. Spence, B. Chiu, "Sensitive three-dimensional ultrasound assessment of carotid atherosclerosis by weighted average of local vessel wall and plaque thickness change," Med. Phys., In press. 2017.
  2. E. Ukwatta, H. Arevalo, K. Li, J. Yuan, P. Malamas, W. Qiu, K. C. Wu, N. A. Trayanova, F. Vadakkumpadan, "Myocardial Infarct segmentation from magnetic resonance images for personalized modeling of cardiac electrophysiology," IEEE Transactions on Medical Imaging, 2016.
  3. E. Ukwatta, J. Yuan, W. Qiu, M. Rajchl, B. Chiu, A. Fenster, "Joint segmentation of lumen and outer wall from femoral artery MR images: Towards 3D Imaging measurements of peripheral arterial disease," Medical Image Analysis, 26(1) 120-132 2015.
  4. E. Ukwatta, H. Arevalo, M. Rajchl, J. White, F. Pashakhanloo, A. Prakosa, D. A. Herzka, E. McVeigh, A. C. Lardo, N. A. Trayanova, F. Vadakkumpadan, "Image-based reconstruction of three-dimensional myocardial infarct geometry for patient-specific modeling of cardiac electrophysiology," Medical Physics, 42(8), 4579-90 2015.
  5. W. Qiu, J. Yuan, E. Ukwatta, A. Fenster, "Rotationally resliced 3D prostate TRUS segmentation using convex optimization with shape priors," Medical Physics, 42(2), 877-891 2015.
  6. W. Qiu, J. Yuan, E. Ukwatta, Y. Sun, M. Rajchl, A. Fenster, "Dual optimization based prostate zonal segmentation in 3D MR images," Medical Image Analysis, 18(4), 660-73 2014.
  7. W. Qiu, J. Yuan, E. Ukwatta, Y. Sun, M. Rajchl, A. Fenster, "Prostate segmentation: An efficient convex optimization approach with axial symmetry using 3D TRUS and MR images," IEEE Transactions on Medical Imaging, 33(4), 947-60 2013.
  8. E. Ukwatta, J. Yuan, M. Rajchl, W. Qiu, D. Tessier, A. Fenster, "3-D Carotid multi-region MRI segmentation by globally optimal evolution of coupled surfaces," IEEE Transactions on Medical Imaging, 32(4),770-85 2013.
  9. E. Ukwatta, J. Yuan, D. Buchanan, B. Chiu, J. Awad, W. Qiu, G. Parraga, A. Fenster, "Three-dimensional segmentation of three-dimensional ultrasound carotid atherosclerosis using sparse field level sets," Medical Physics, 40(5), 2903-20, 2013.
  10. B. Chiu, E. Ukwatta, S. Shavakh, A. Fenster, "Quantitative and visualization of carotid segmentation accuracy and precision using a 2D standardized carotid map," Physics in Medicine and Biology, 58(11), 3671-703, 2013.
  11. W. Qiu, J. Yuan, E. Ukwatta, D. Tessier, A. Fenster, "3D prostate segmentation using level set with shape constraint based on rotational slices for 3D end-firing TRUS guided biopsy," Medical Physics, 40(7), 2903-15 2013.
  12. M. Rajchl, J. Yuan, J. A. White, E. Ukwatta, J. Stirrat, M. S. Nambakhsh, T. M. Peters, "Interactive hierarchical max-flow segmentation of scar tissue from late-enhancement cardiac MR images," IEEE Trans. on Medical Imaging, 33(1), 159-172 2013.
  13. E. Ukwatta, J. Awad, A. D. Ward, D. Buchanan, J. Samarabandu, G. Parraga, A. Fenster, "Three-dimensional ultrasound of carotid atherosclerosis: Semi-automated segmentation using a level set-based method," Medical Physics, 38(5), 2479-95 2011.
  14. E. Ukwatta, J. Samarabandu, Mike Hall, "Machine vision system for automated spectroscopy," Machine Vision and Applications, 22(5), 1-11 2011.

Peer Reviewed Conference Papers

  1. G. Hanna, N. Trayanova, G. Wright, E. Ukwatta, "Evaluation of a T1 Mapping Technique for Stratifying Patient Risk: A Preliminary Study using Computer Simulations of Cardiac Electrophysiology", IEEE EMBS ISC(accepted), 2016.
  2. E. Ukwatta, M. Rajchl, J. White, F. Pashakhanloo, D. A. Herzka, E. McVeigh, A. C. Lardo, N. A. Trayanova, F. Vadakkumpadan, "Image-based reconstruction of 3D myocardial infarct geometry for patient specific applications," SPIE Medical Imaging: Image Processing, 94132W-7, 2015.
  3. W. Qiu, J. Yuan, J. Kishimoto, Y. Chen, M. Rajchl, E. Ukwatta, S. Ribaupierre, A. Fenster, "Longitudinal analysis of pre-term neonatal brain ventricle in ultrasound images based on convex optimization," Medical Image Computing and Computer Aided Intervention (MICCAI), Springer Berlin Heidelberg, 476-483, 2015. (Double-blinded review, acceptance rate ~29%)
  4. W. Qiu, J. Yuan, J. Kishimoto, Y. Chen, M. Rajchl, E. Ukwatta, S. Ribaupierre, A. Fenster, "Automatic 3D US brain ventricle segmentation in pre-term neonates using multi-phase geodesic level-sets with shape prior," Medical Image Computing and Computer Aided Intervention (MICCAI), Springer Berlin Heidelberg, 89-96, 2015. (Double-blinded review, acceptance rate ~29%)
  5. E. Ukwatta, J. Yuan, W. Qiu, K. Wu, N. Trayanova, F. Vadakkumpadan, "Myocardial infarct segmentation and reconstruction from 2D late-gadolinium enhanced magnetic resonance images," Medical Image Computing and Computer Aided Intervention (MICCAI), Springer Berlin Heidelberg, 554-61, 2014. (Double-blinded review, acceptance rate ~29%)
  6. W. Qiu, M. Rajchl, F. Guo, Y. Sun, E. Ukwatta, A. Fenster, J. Yuan, "3D prostate TRUS segmentation using globally optimized volume-preserving prior," Medical Image Computing and Computer Aided Intervention (MICCAI), Springer Berlin Heidelberg, 796-803, 2014. (Double-blinded review, acceptance rate ~29%)
  7. W. Qiu, J Yuan, J. Kishimoto, S. Ribaupierre, E. Ukwatta, A. Fenster, "Semi-automatic segmentation of preterm neonate ventricle system from 3D ultrasound images," IEEE International Symposium on Biomedical Imaging, 1222-5, 2014.
  8. M. Rajchl, K. Abhari, J. Stirrat, E. Ukwatta, D. Cantor, Feng P. Li1, T. M. Peters, and J. A. White, "Distribution of guidance models for cardiac resynchronization therapy in the setting of multi-center clinical trials", SPIE Medical Imaging, 90361V-90361V-7, 2014.
  9. E. Ukwatta, J. Yuan, W. Qiu , M. Rajchl, B. Chiu, S. Shavakh, J. Xu, A. Fenster, "Joint segmentation of 3D femoral lumen outer wall surfaces from MR images," Medical Image Computing and Computer Aided Intervention (MICCAI), Springer Berlin Heidelberg, 534-41 2013. (Double-blinded review, acceptance rate ~32.8%)
  10. E. Ukwatta, J. Yuan, W. Qiu, M. Rajchl, A. Fenster, "Efficient convex optimization-based curvature dependent contour evolution approach for medical image segmentation," Proceedings of SPIE Medical Imaging: Image Processing, 866902-1-9 2013.
  11. W. Qiu, J. Yuan, M. Rajchl, J. Kishimoto, E. Ukwatta, S. Ribaupierre, A. Fenster, "Cerebral ventricle segmentation from 3D pre-term IVH neonate MR images using atlas-based convex optimization," Computer-assisted Robotic endoscopy, 45-54 2014.
  12. W. Qiu, J. Yuan, E. Ukwatta, Y. Sun, M. Rajchl, A. Fenster, "Fast globally optimal segmentation of 3D prostate MRI with axial symmetry prior," Medical Image Computing and Computer Aided Intervention (MICCAI), Springer Berlin Heidelberg, 198-205 2013. (Double blinded review, acceptance rate ~32.8%
  13. J. Yuan, E. Ukwatta, W. Qiu, Y. Sun, M. Rajchl, X-C Tai, A. Fenster, "Jointly segmenting prostate zones in 3D MRIs by globally optimized coupled level-sets," Proceedings of Energy minimization methods in Computer Vision and Pattern Recognition (EMMCVPR), Springer Berlin Heidelberg, 12-25 2013. (Double-blinded review, acceptance rate ~30%)
  14. J. Yuan, W. Qiu, M. Rajchl, E. Ukwatta , X.C. Tai, A. Fenster, "Efficient 3D endfiring TRUS prostate segmentation with globally optimized rotational symmetry," IEEE Conference on Computer Vision and Pattern Recognition (CVPR), 2211-18, 2013. (Double-blinded review, acceptance rate ~25%)
  15. W. Qiu, J. Yuan, E. Ukwatta, M. Rajchl, A. Fenster, "Efficient 3D multi-region prostate MRI segmentation using dual optimization," Information Processing in Medical Imaging (IPMI), Springer Berlin Heidelberg, 304-15 2013. (Double-blinded review, acceptance rate ~25%)
  16. W. Qiu, J. Yuan, J. Kishimoto, E. Ukwatta, A. Fenster, "Lateral ventricle segmentation of 3D pre-term neonates US using convex optimization," Medical Image Computing and Computer Aided Intervention (MICCAI), Springer Berlin Heidelberg, 559-66 2013. (Double-blinded review, acceptance rate ~32.8%)
  17. W. Qiu, J. Yuan, E. Ukwatta, D. Tessier, A. Fenster, "3D prostate segmentation in 3D TRUS using convex optimization," Proceedings of SPIE Medical Imaging: Image Processing 866943-1-7 2013. (Honorable mention in the image processing conference)
  18. E. Ukwatta, J. Yuan, M. Rajchl, A. Fenster, "Efficient global optimization based 3D carotid AB-LIB MRI segmentation by simultaneously evolving coupled surfaces," Medical Image Computing and Computer Aided Intervention (MICCAI), Springer Berlin Heidelberg, 377-84, 2012. (Double-blinded review, acceptance rate ~32%)
  19. J. Yuan, W. Qiu, E. Ukwatta, M. Rajchl, A. Fenster, "An efficient convex optimization approach to 3D prostate MRI segmentation with generic start shape prior," MICCAI Prostate Workshop, 1-12 2012.
  20. M. Rajchl, J. Yuan, J. A. White, C. M. S. Nambakhsh, E. Ukwatta, F. Li, J. Stirrat, T. M. Peters, "A fast convex optimization approach to segmenting 3D scar tissue from delayed-enhancement cardiac MR images," Medical Image Computing and Computer Aided Intervention (MICCAI), Springer Berlin Heidelberg, 659-666, 2012. (Double-blinded review, acceptance rate ~32%)
  21. W. Qiu, J. Yuan, E. Ukwatta, D. Tessier, A. Fenster, "Rotational-slice-based prostate segmentation using level set with shape constraint for 3D end-firing TRUS guided biopsy," Medical Image Computing and Computer Aided Intervention (MICCAI), Springer Berlin Heidelberg, 537-44, 2012. (Double-blinded review, acceptance rate ~32%)
  22. M. Rajchl, J. Yuan, E. Ukwatta, T. M. Peters, "Fast interactive multi-region cardiac segmentation with linearly ordered labels," IEEE International Symposium on Biomedical Imaging, 1409-12, 2012. (Double-blinded review, acceptance rate ~60%)
  23. E. Ukwatta, D. Buchanan, G. Parraga, A. Fenster, "Three-dimensional ultrasound imaging of carotid atherosclerosis," IEEE International Conference on Intelligent Computation and Bio-Medical Instrumentation, 81-84, 2011. (Double-blinded review)
  24. D. Buchanan, I. Gyacskov, E. Ukwatta, T.Lindenmaier, A. Fenster, G. Parraga, "Semi-automated segmentation of carotid artery plaque volume from three dimensional ultrasound carotid imaging," Proceedings of SPIE Medical Imaging, 83170I-83170I-7 2012.
  25. E. Ukwatta, J. Awad, D. Buchanan, G. Parraga, A. Fenster, "Three-dimensional semi-automated segmentation of carotid atherosclerosis from three-dimensional ultrasound images," Proceedings of SPIE Medical Imaging, San Diego, CA, 83150O-2 2012.
  26. E. Ukwatta, J. Awad, A. D. Ward, D. Buchanan, G. Parraga, A. Fenster, "Coupled level set segmentation approach for carotid segmentation using 3D ultrasound images," IEEE International Symposium on Biomedical Imaging, 37-40, 2011. (Double-blinded review, acceptance rate ~60%)
  27. E. Ukwatta, J. Awad, A. D. Ward, A. Krasinski, J. Samarabandu, G. Parraga, A. Fenster, "Segmentation of the lumen and media-adventitia boundaries of the common carotid artery from 3D ultrasound images," Proceedings of SPIE Medical Imaging, Orlando, FL, 7963-15 79630G, 2011.
  28. E. Ukwatta, J. Samarabandu, "Vision based metal spectral analysis using multi-label classification," Canadian Conference on Computer and Robot Vision, 132-139, 2009. (Double-blinded review)
  29. E. Ukwatta, R. Rodrigo, J. Samarabandu, M. Hall, "Vision based spectroscopy simulation," Canadian Conference on Computer and Robot Vision, 363-368, 2008. (Double-blinded review)