Abstract: Various embodiments are described herein for a system and a method for treatment planning for providing ablative therapy to a patient. The treatment planning may involve segmenting images of the patient to define areas to receive treatment, defining trial parameters, simulating treatment of ablative therapy to the patient according to the trial parameters; analyzing a thermal dose distribution resulting from the simulated treatment to determine treatment effectiveness; determining when the treatment effectiveness meets a treatment effectiveness criteria; and providing an indication of the trial parameters when the treatment effectiveness meets the treatment effectiveness criteria.
Type:
Application
Filed:
May 13, 2016
Publication date:
November 17, 2016
Applicant:
University Health Network
Inventors:
Sean Davidson, Michael D. Sherar, Kieran Murphy, Claire McCann, Robert Weersink
Abstract: The present invention provides methods and compositions for modulating Toso activity and treating diseases and disorders in which Toso is implicated. Such methods and compositions include the use of one or more antibodies that bind to a Toso protein or to a ligand of a Toso protein.
Type:
Grant
Filed:
July 2, 2014
Date of Patent:
November 15, 2016
Assignee:
University Health Network
Inventors:
Tak W. Mak, Xiuqiu Lai, Michael W. Tusche
Abstract: Embodiments disclose a method performed by at least one processor for processing a plurality of x-ray projection images of a subject, the method comprising a plurality of operations including reconstructing the projection images to yield a volume reconstruction; segmenting the reconstructed volume by assigning a material type to each voxel; estimating a first set of scatter images corresponding to a subset of the projection images by calculating probabilistic predictions of interactions of x-rays with the subject and applying a low pass spatial filter to the scatter images; estimating a second set of scatter images corresponding to projection images not included in the subset, based on the first set of scatter images; and subtracting, for each projection image, the corresponding scatter image to yield a corrected projection image.
Type:
Application
Filed:
December 18, 2014
Publication date:
October 27, 2016
Applicants:
Elekta AB (publ), University Health Network
Inventors:
Marcus HENNIX, Hakan NORDSTROM, Markus Eriksson, Jonas ADLER, David JAFFRAY, Gregory BOOTSMA, Frank VERHAEGEN, Bjorn NUTTI
Abstract: A functional electrical stimulation (FES) device and system. In one embodiment, sequential bipolar pulse stimulation may be provided to an area of a living body via one or more electrode leads applied to the area via a FES device comprising a current pulse generating circuit comprising output nodes for operative coupling to the one or more electrode leads, and configured for operative coupling to a voltage supply. The current pulse generating circuit generally comprises positive and negative stimulation paths drawing from the voltage supply to respectively apply positive and negative currents through the area via the one or more electrode leads. In one example, the stimulation paths comprise respective capacitive elements, a capacitance ratio of which dictating, at least in part, an amplitude ratio of the positive and negative currents, wherein periodic alternative activation of the stimulation paths provides the sequential bipolar pulse stimulation.
Type:
Grant
Filed:
September 29, 2014
Date of Patent:
September 13, 2016
Assignee:
University Health Network
Inventors:
Milos R. Popovic, Massimo Tarulli, Aleksandar Prodic, Peter Lehn
Abstract: The invention is related to a method of treating a subject with pancreatic cancer with administration of a compound represented by Structural Formula (I): or a pharmaceutically acceptable salt thereof.
Type:
Application
Filed:
October 3, 2014
Publication date:
September 1, 2016
Applicant:
University Health Network
Inventors:
David W. Hedley, Ines Lohse, Jacqueline M. Mason, Mark R. Bray
Abstract: Provided herein are methods and compositions for treating a patient with cancer wherein the cancer is characterized by a PTEN gene mutation and/or a PI3K gene mutation. In particular embodiments, the methods comprise administering to the patient a composition comprising a therapeutically effective amount of a PLK4 antagonist.
Type:
Grant
Filed:
January 9, 2015
Date of Patent:
August 2, 2016
Assignee:
University Health Network
Inventors:
Guohua Pan, Jacqueline M. Mason, Xin Wei, Miklos Feher
Abstract: The invention relates to the use of novel biomarkers and biomarker combinations having utility in the early determination of an individual's critical and/or life threatening response to illness and/or in predicting outcome of said illness. The measurement of expression levels of the products of the biomarkers and combinations of biomarkers of the invention have utility in making the determination of an individual's critical and/or life threatening response to illness. In some embodiments, the biomarker and biomarker combinations are agnostic and are independent of the pre-identification and/or determination of the cause or nature of the illness. In some embodiments, the biomarkers and biomarker combinations can be utilized to select treatment and/or monitor the effectiveness of treatment interventions for an individual who has a critical illness.
Type:
Application
Filed:
September 5, 2014
Publication date:
July 28, 2016
Applicant:
University Health Network
Inventors:
Kevin Kain, W. Conrad Liles, Laura Erdman, Andrea Conroy
Abstract: There is provided signal modifying compositions for medical imaging comprising a carrier and signal modifying agents specific for two or more imaging modalities. The compositions are characterized by retention efficiency, with respect of the signal modifying agents that enables prolonged contrast imaging without significant depletion of the signal modifying agent from the carrier. The carriers of the present invention are lipid based or polymer based the physico-chemical properties of which can be modified to entrap or chelate different signal modifying agents and mixtures thereof and to target specific organs or tumors or tissues within a mammal.
Type:
Grant
Filed:
March 12, 2014
Date of Patent:
July 19, 2016
Assignee:
University Health Network
Inventors:
David Jaffray, Christine Allen, Jinzi Zheng, Raymond Matthew Reilly, Gregory Jason Perkins
Abstract: Methods and systems for evaluating a proposed treatment plan for radiation therapy, for evaluating one or more delineated regions of interest for radiation therapy, and/or for generating a proposed treatment plan for radiation therapy. Machine learning based on historical data may be used.
Type:
Application
Filed:
June 12, 2014
Publication date:
May 19, 2016
Applicant:
University Health Network
Inventors:
Thomas G. Purdie, Christopher James McIntosh, Igor Svistoun
Abstract: A system for rehabilitating patients affected by balance disorders with or without vestibular hypofunction and/or malfunction with or without an associated hearing loss, which includes sensors of sound and head movement, processing circuitry, a power source coupled to head phones, an air conduction hearing aid, bone conduction hearing aid, middle ear implant or an electrical stimulator implanted into the cochlea capable of stimulating areas within the cochlea with the potential for current spread to surrounding non-auditory areas including the vestibular system.
Type:
Grant
Filed:
March 12, 2013
Date of Patent:
May 17, 2016
Assignees:
The Hospital for Sick Children, University Health Network
Inventors:
Sharon Cushing, Blake Papsin, David Pothier, Cian Hughes
Abstract: Various embodiments are described herein for a system and a method for identifying the arrhythmogenic circuit of a patient or subject. In one embodiment, the method comprises obtaining data for electrograms recorded at various locations of the heart while programmed ventricular pacing with extra stimuli was performed, obtaining decrement values for at least two different locations of the heart using the recorded electrograms, generating at least a portion of a decrement map using the decrement values, and identifying the arrhythmogenic circuit based on electrograms having significant decremental properties.
Abstract: The present invention is further directed to methods and compositions for modulating the activity of the Toso protein. The invention further encompasses treatment of disorders associated with inflammation, autoimmune disorders, and cancer using compositions that include a soluble Toso protein.
Type:
Grant
Filed:
November 12, 2014
Date of Patent:
April 26, 2016
Assignee:
Universal Health Network
Inventors:
Michael W. Tusche, Tak W. Mak, Pamela S. Ohashi, Philipp Lang, Karl Lang, Dirk Brenner, Gloria Lin
Abstract: The present description relates to methods of administering effective amounts of an anti-arrhythmic agent, e.g., dantrolene, azumolene or a pharmaceutically acceptable salt thereof, for the acute treatment of cardiac arrhythmias, e.g., atrial fibrillation, premature ventricular contraction, ventricular tachycardia or ventricular fibrillation, and prevention of subsequent cardiac arrhythmias, wherein the methods effectuate a reduction in morbidity and mortality.
Type:
Application
Filed:
May 5, 2014
Publication date:
April 14, 2016
Applicant:
University Health Network, Toronto General Hospita
Abstract: The present application relates to compositions comprising an iodinated contrast agent and indocyanine green co-encapsulated inside a liposomal carrier, various uses thereof as well as methods for their preparation.
Type:
Application
Filed:
May 26, 2014
Publication date:
April 7, 2016
Applicant:
University Health Network
Inventors:
Jinzi Zheng, David A. Jaffray, Christine Allen
Abstract: The present invention is further directed to methods and compositions for modulating the activity of the Toso protein. The invention further encompasses treatment of disorders associated with inflammation, autoimmune disorders, and cancer using compositions that include a soluble Toso protein.
Type:
Grant
Filed:
March 14, 2013
Date of Patent:
January 5, 2016
Assignee:
University Health Network
Inventors:
Michael W. Tusche, Tak W. Mak, Pamela S. Ohashi, Philipp Lang, Karl Lang, Dirk Brenner, Gloria Lin
Abstract: The invention is directed to a compound represented by the following structural formula and pharmaceutically acceptable salts thereof: Compounds represented by this structural formula are kinase inhibitors and are therefore disclosed herein for the treatment of cancer. Definitions for the variables in the structural formula are provided herein.
Type:
Grant
Filed:
July 3, 2013
Date of Patent:
September 22, 2015
Assignee:
University Health Network
Inventors:
Peter Brent Sampson, Yong Liu, Sze-Wan Li, Bryan T. Forrest, Heinz W. Pauls, Louise G. Edwards, Miklos Feher, Narendra Kumar B. Patel, Radoslaw Laufer
Abstract: A method, computer program product and processor for quantitatively registering a 2D endoscopic ROI in a 3D volumetric imaging dataset. An endoscopic dataset and a volumetric imaging are registered to a common coordinate system. A 2D endoscopic ROI is generated within the endoscopic imaging dataset. A 3D surface ROI is generated within the volumetric imaging dataset corresponding to the 2D endoscopic ROI, based on a projection of the 2D endoscopic ROI to the registered common coordinate system.
Type:
Grant
Filed:
May 13, 2010
Date of Patent:
September 22, 2015
Assignee:
University Health Network
Inventors:
Robert Weersink, Andrew Hope, Jeff Siewerdsen, David Jaffray, Aidin Kashigar, Michael Daly, Jonathon Eubank, John Cho
Abstract: The present application relates to imidazolidinecliones, compositions comprising these compounds and their use, in particular for the treatment of diseases, disorders or conditions characterized by or associated with the hypercitrullination of proteins by peptidyl arginine deiminase (PAD) enzymes. In particular, the present application includes compounds of Formula I, and compositions and uses thereof: (I).
Type:
Application
Filed:
August 1, 2013
Publication date:
September 10, 2015
Applicants:
The Hospital For Sick Children, University Health Network
Abstract: Various embodiments are described herein for nanostructure field emission cathode structures and methods of making these structures. These structures generally comprise an electrode field emitter comprising a resistive layer having a first surface, a connection pad having a first surface disposed adjacent to the first surface of the resistive layer, and a nanostructure element for emitting electrons in use, the nanostructure element being disposed adjacent to a second surface of the connection pad that is opposite the first surface of the connection pad. Some embodiments also include a coaxial gate electrode that is disposed about the nanostructure element.
Type:
Grant
Filed:
August 2, 2013
Date of Patent:
June 9, 2015
Assignee:
University Health Network
Inventors:
Yonghai Sun, Tze-wei Yeow, David Anthony Jaffray
Abstract: A device for fluorescence-based imaging and monitoring of a target comprising: a light source emitting light for illuminating the target, the emitted light including at least one wavelength or wavelength band causing at least one biomarker associated with the target to fluoresce; and a light detector for detecting the fluorescence.
Type:
Grant
Filed:
May 20, 2009
Date of Patent:
May 26, 2015
Assignee:
University Health Network
Inventors:
Ralph Sebastian Dacosta, Brian C. Wilson, Kai Zhang