Past Seminars

"Modern Optimization Analysis, Algorithms and Clinical Applications"

 July 23, 2013

        Jing Yuan (Talk, 12:30 pm – 12:45 pm): Overview and introduction to Robarts MedIA Series’2013.

        Olga Veksler (Lecture, 12:45pm – 1:45 pm): Graph-based optimization theories and approaches, image segmentation problems with structured layout prior.

 July 30, 2013

Jing Yuan (Lecture, 12:30 pm – 1:30 pm): Introduction to modern global/convex optimization theories and algorithms, with applications to medical image analysis.

 August 6, 2013

Aaron Ward (Lecture, 12:30 pm – 1:30 pm): TBD

August 13, 2013

Eranga Ukwatta (Talk, 12:30 pm – 1:00 pm): Efficient global/convex optimization based approach to 3D Carotid Lumen-Wall segmentation in MRIs.

Martin Rajch (Talk, 1:10 pm – 1:40pm): Convex relaxed Potts model to 3D scar-tissue segmentation from Late-Enhancement cardiac MRIs

 August 20, 2013

Wu Qiu (Talk, 12:30 pm – 1:00 pm): Globally optimized 3D prostate TRUS segmentation with rotational symmetry: a numerically efficient algorithm.

Yue Sun (Talk, 1:10 pm – 1:40pm): Dual optimization method to 3D prostate MRI-TRUS deformable registration.

 August 27, 2013

Brandon Miles (Talk, 12:30 pm – 1:00pm): Efficient total-variation medical image fusion. 

Eli Gibson (Talk, 1:10 pm – 1:40pm): TBD

 September 3, 2013

Yuri Boykov (Lecture, 12:30 pm – 1:30 pm): Introduction to graph-based optimization theories and recent developments, with applications to medical image processing

 September 10, 2013

Tharindu De Silva (Talk, 12:30 pm – 1:00pm): Improving 2D-3D rigid registration using learned prostate motion data.

Eranga Ukwatta (Talk, 1:10 pm – 1:40pm): Efficient global optimization approach to 3D Femoral Lumen and Outer-Wall segmentation in MRIs.

September 17, 2013

Jing Yuan (Talk, 12:30 pm – 1:00 pm): Globally optimized coupled level-sets, with applications to 3D prostate zonal segmentation in MRIs.

Abraam Soliman (Talk, 1:10 pm – 1:40pm): Convex relaxation method to IDEAL Fat-Water separation.

Tuesday, August 20, 2013 at 12:00 AM
Fisher Conference Room, 2nd floor Robarts Research Institute
"Technical Error Analysis in Minimally Invasive Surgery "

This presentation focuses on the methodology used to design a novel approach to surgical skills analysis through the identification of technical errors. The process from design, to validation and implementation will be highlighted. Future applications in surgical training, credentialing and determining simulation metrics will be discussed. 

Thursday, August 8, 2013 at 5:00 PM
CSTAR Multi Media Theater, 7th Floor, Room B7-202, University Hospital
University of Ottawa
"Modeling of degeneration in PD"
Wednesday, August 7, 2013 at 2:00 PM
Fisher Room, Robarts Research Institute
" Neural circuits for movement: the foundation for functional recovery and repair"

Dr. Rob Brownstone is a candidate for the Rorabeck Chair at Robarts and will presenting a seminar on Tuesday, July 30th. All are encouraged to attend. 

Tuesday, July 30, 2013 at 2:00 PM
Fisher Room, Robarts Research Institute
"Simulation Support for Cardiac and Spinal Procedures"

 The VASST lab at Robarts is investigating image-guided approaches for a number of diverse procedures. Two such projects involve tools for a more precise performance of intra cardiac repairs to the beating heart, and for the delivery of anesthetic agents to the spine. In both cases, in addition to the platforms for delivering the therapy in the clinical arena, we have been developing simulation environments, both computer-based and physical, to facilitate training in the execution of these procedures.

The talk will highlight the rationale for the actual procedures, and provide an update on the simulation platforms developed to support them. 

Food will be provided.

Thursday, July 18, 2013 at 5:00 PM
CSTAR Multi Media Theatre: 7th Floor, Room B7-202, University Hospital
University of Toronto
"TNFalpha, sphingosine-1-phosphate (S1P) and the cystic fibrosis transmembrane conductance regulator (CFTR) as emerging regulators of microvascular function in health and disease"


Friday, June 28, 2013 at 1:00 PM
Fisher Room, Robarts Research Institute
National Research Council of Canada
"Molecular Mechanisms of Neurodegeneration Alzheimer’s Disease"


Thursday, June 27, 2013 at 1:00 PM
Fisher Room, Robarts Research Institute
Department of Imaging
"A forum on Morphological, Functional and Molecular Imaging"

Make sure to come out to the 2013 London Imaging Discovery!

The keynote speaker will be Dr. Amit Chakma, the 10th President & Vice-Chancellor of Western University.

Thursday, June 13, 2013 at 11:30 AM
North Campus Building, Western University
"Endothelial cell loss and repair in diabetes complications: pathophysiological and therapeutic considerations"

 Lunch provided

Wednesday, May 29, 2013 at 12:30 PM
Robarts 2nd floor conference room
"Surgical Task Decomposition for Simulator Design & Evaluation"

The Design and Evaluation of Surgical Simulator modules require that the surgical task be decomposed into set of phases. Each phase can then be examined from its information-processing requirements for the purpose of the design of the display, the interaction methods, and for the specification of objective metrics of performance. Eagleson will overview this process and focus on a specific set of Surgical Simulator modules (Endoscopic Third Ventriculostomy, Carotid Artery Stentiing, Prostate Biopsy, and Laparoscopic Cholecystectomy).

Thursday, May 23, 2013 at 5:00 PM
CSTAR Multi Media Theatre: 7th Floor, Room B7-202, University Hospital
Imaging Research Laboratories
Robarts Research Institute
Schulich School of Medicine & Dentistry
The University of Western Ontario
"Medical image computing and digital histopathology for translational cancer research"
Tuesday, December 14, 2010 at 11:00 AM
2nd Floor Fisher Conference Room, Robarts Research Institute
Imaging Research Laboratories, Robarts Research Institute
Sunnybrook Research Institute
University of Toronto
"Finding Cancer: Computer-Aided Detection, Longitudinal Analyses and Future Directions"
Thursday, December 2, 2010 at 3:00 PM
2nd Floor Fisher Conference Room, Robarts Research Institute
Imaging Research Laboratories, Robarts Research Institute
"Computer-Aided Heart Motion Analysis"

Assessment of cardiac function and early detection of abnormality play an essential role in the diagnosis, treatment, and control of several heart diseases. Visual assessment of cardiac function may result in higher inter- and intra-observer variability. Alternatively, automating abnormality scoring and producing clinically relevant quantitative measurements are desirable to facilitate the disease diagnosis. Due to the similarity between the statistical information associated with normal and abnormal heart motions, the heart motion abnormality detection is acknowledged as a difficult problem, which has recently bestirred a significant research attention. Our study investigates several fundamental problems related to cardiac images acquired in regular clinical routine. First, this study investigates automating the analysis of global cardiac function, and proposes effective measures to process the information from the data. Then, it addresses the problem of uncertainties associated with cardiac motion and proposes solutions based on a more complex motion models. Finally, a solution to the regional myocardial abnormality analysis is developed in accordance with the clinical standard issued by the American Heart Association.

Thursday, December 2, 2010 at 2:00 PM
Robarts Research Institute, 2nd floor conference room
Department of Mechanical Engineering
Director, Centre for Bioengineering University of Canterbury, Christchurch, New Zealand
"Cellular Modeling to MR Imaging: The Challenge of Multiple Scales in the Biological Sciences: Applications in Cerebro-vascular Perfusion"

There are a significant number of problems that exhibit a large range of physical scales but none so prominent in the 21st Century as that exemplified within the biological sciences. In the major arterial networks the blood flow dynamic scales are of the order of 1mm (cerebral vessels) up to 25mm (ascending aorta). Downstream of any major vessel exists a substantial network of arteries, arterioles and capillaries whose characteristic length scales reach the order of 10-20 microns. Within the walls of these cylindrical vessels lie ion channels consisting of proteins (100 nanometers and smaller) folded in such a way as to allow only certain molecules through the membrane. One can now of course ask the question as to why all these scales should be integrated into a single model.

To investigate the way in which the brain responds to variations in pressure and yet maintains a virtually constant supply of blood to the tissue numerical models need to be able to have a representation of not only the vascular tree but also a dynamic model of how the small arteries constrict and dilate. Simulating this phenomenon as a "lumped" connection of arteries is insufficient since different parts of the arterial tree respond differently. Thus we have a range of scales from the major arteries down to the arteriolar bed. The combination of a 3D model taken from MR data coupled with an autoregulation model with a fully populated arterial tree able to regulate dynamically remains a relatively unexplored field. This particular talk will outline the reasons for investigating multiple scales and their particular constraints with special reference to the autoregulation of blood in the cerebro-vasculature and outline a possible solution.

Wednesday, November 24, 2010 at 6:00 PM
Shuttleworth Auditorium (D0-104), St. Joseph's Hospital, 268 Grosvenor Street, London, Ontario
Imaging Research Laboratories, Robarts Research Institute
"Improving brain registration and segmentation using anatomical guidance and intelligent atlas selection"

Neurodegenerative diseases afflict a significant portion of the world's aging population, with Alzheimer's disease (AD) alone affecting close to 500,000 Canadians.  Non-invasive magnetic resonance imaging has shown potential to detect structural changes at an earlier stage than neuropsychological or cognitive evaluations, however, the high degree of anatomical variability among our brains has proven to be a challenge in developing general computational methods. Neuroanatomical registration and segmentation are fundamental components of many structural and functional analysis techniques, thus advances here can lead to the development of biomarkers for early disease progression.  In this presentation I will present methods for improved accuracy and robustness using context-specific anatomical guidance in registration and intelligent atlas selection in multi-atlas segmentation, then demonstrate applications of these in shape analysis of the hippocampus in AD.

Monday, October 25, 2010 at 2:00 PM
Robarts Research Institute, 2nd floor conference room
Robarts Research Institute
Schulich School of Medicine
"How Cells Sense Oxygen"
Monday, October 25, 2010 at 10:30 AM
London Health Science Centre - Unversity Hospital - Auditorium A
Schulich School of Medicine & Dentistry
Robarts Research Institute
"21st Annual R.W. Gunton Symposium on Cardiovascular Therapeutics"
Thursday, September 16, 2010 at 8:30 AM
University Hospital— Auditorium A (3rd floor)
Department of Chemistry and Biochemistry Program in Biomolecular Science and Engineering Neuroscience Research Institute University of California
"Some Biochemical Mechanisms for Transport by Vesicular Acetylcholine Transporter"
Monday, June 28, 2010 at 12:00 PM
2nd Floor Conference Room, Robarts Research Institute

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