Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 7 of 7 for “"coronary vasculature"”.
-
Unsupervised Representation Learning from Intravascular Ultrasound Videos
… offer real-time endovascular information of the coronary vasculature. However, its low signal-to-noise ratio, low data availability, and numerous artifacts make it challenging to use both for humans and automated methods. This work explores the use of representation learning and de-noising …
-
Multi-scale computational modeling of coronary blood flow: application to fractional flow reserve.
… flow reserve (FFR) is presently an invasive coronary clinical index. Non-invasive CT imaging combined with computational coronary flow modelling may reduce the patient’s burden of undergoing invasive testing. Research statement. The ability to obtain information of the hemodynamic …
-
Defining the Developmental Signals of the Cardiac Fibroblast
… functions as a pool of progenitor cells for the coronary vasculature and interstitial connective tissue during embryonic development. Although several signaling pathways have been identified that disrupt EMT, no component has been reported that negatively regulates EMT, which may also involved in …
-
Muscle Metaboreflex Control Of Cardiovascular Function In Hypertension
… in hypertensive animals functionally restrain coronary vasodilation further limiting increases in ventricular performance. We found that: 1) the sustained increase in MAP during PEMI is driven by a sustained increase in CO not peripheral vasoconstriction, 2) the attenuated pressor response in …
-
Coronary flow mechanics: an anatomically based mathematical model of coronary blood flow coupled to cardiac contraction
Coronary blood flow through the ventricular contraction cycle has been investigated in this thesis using an anatomically accurate computational model. Using Strahler ordered morphological data and an avoidance algorithm a three dimensional finite element model has been constructed of the largest …
-
Postsynaptic Cholinergic Control Of Cardiac Function In Aging
… of the negative chronotropic, inotropic and coronary vasoconstriction responses of the aging heart to postsynaptic cholinergic stimulation.;The approaches used and the results demonstrated were the following. (i) Acetylcholinesterase activity measured by the method of Ellman et al (1961) …
-
Carotid Atherosclerosis: Why Some Patients are Symptomatic and Others Not?
… disease, incidence of stroke is increasing. In coronary vasculature it has been shown that plaques from symptomatic patients are friable and thus more likely to undergo plaque rupture to precipitate symptoms. If this happens in the carotid arteries, this can lead to occlusion of cerebral …