Optimization of Cardiac Fiber Orientation for Homogeneous Fiber Strain During Ejection
نویسندگان
چکیده
منابع مشابه
Optimization of cardiac fiber orientation for homogeneous fiber strain at beginning of ejection.
Mathematical models of left ventricular (LV) wall mechanics show that fiber stress depends heavily on the choice of muscle fiber orientation in the wall. This finding brought us to the hypothesis that fiber orientation may be such that mechanical load in the wall is homogeneous. Aim of this study was to use the hypothesis to compute a distribution of fiber orientation within the wall. In a fini...
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UNLABELLED During the ejection phase of the cardiac cycle, left ventricular muscle fibres shorten while generating force. It was hypothesized that fibres are oriented in the wall such that the amount of shortening is the same for all fibres. We evaluated this hypothesis for the equatorial region of the left ventricle. In a finite element model of left ventricular wall mechanics fibre orientatio...
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Heterogeneity in cardiac tissue microstructure is a potential mechanism for the generation and maintenance of arrhythmias. Abnormal changes in fiber orientation increase the likelihood of arrhythmia. We present optical coherence tomography (OCT) as a method to image myofibers in excised intact heart preparations. Three-dimensional (3-D) image sets were gathered from the rabbit right ventricular...
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ژورنال
عنوان ژورنال: Annals of Biomedical Engineering
سال: 1999
ISSN: 0090-6964
DOI: 10.1114/1.147