Objective
"Understanding of normal and abnormal cardiac excitation and contraction requires the integration of knowledge of myocyte electrophysiology and mechanics with knowledge of dynamic myocardial architecture.
The myocardium is structured as stacked 4-6 cells thick (~100 µm) laminae of myocytes, which have a complex architectural arrangement throughout the cardiac wall and have localised regions of abrupt change in orientation.
Ventricular structure is not an esoteric consideration of form. Along with other functional and structural properties of the myocardium, fibre and laminar architecture determine i) the spread of myocardial activation and ii) the deformation of the wall in contraction. My hypothesis is that: (i) myocardial systolic thickening is enabled by the sliding of sheets over each other, with the laminar architecture serving to limit shear stress; 2) that sheet sliding will have a role in electromechanical feedback which will influence the initiation, propagation and termination of arrhythmias; 3) that myolaminar sliding will be absent in infarct scars, with consequent large strain in the peri-infarct region and that this will have consequences for structural re-organisation, the propagation of activation and arrhythmogenesis in the surrounding myocardium.
These hypotheses will be investigated using ex vivo and in vivo MRI of laminar structure with concurrent electrophysiological (EP) epicardial/endocardial recordings. The study has two phases: (Year 1) preclinical method development in isolated and in situ mouse hearts using high-field strength MRI spectrometers; (Year 2) a translational MRI and EP-mapping in a sheep chronic infarction model. Results will have implications for the fundamental understanding of myocardial architectural dynamics (between systole and diastole) and the role of this in electromechanical feedback, and furthermore, the results will have potential clinical applications."
Fields of science (EuroSciVoc)
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: https://op.europa.eu/en/web/eu-vocabularies/euroscivoc.
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: https://op.europa.eu/en/web/eu-vocabularies/euroscivoc.
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Programme(s)
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Multi-annual funding programmes that define the EU’s priorities for research and innovation.
Topic(s)
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Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.
Call for proposal
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Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
FP7-PEOPLE-2010-IEF
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Funding Scheme
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Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
Coordinator
33404 Talence
France
The total costs incurred by this organisation to participate in the project, including direct and indirect costs. This amount is a subset of the overall project budget.