title: Construction of a mechanical model of the human heart left ventricle in the process of its contraction
metadata.name: dc.contributor.author
metadata.value: Tregubov, Vladimir P.
metadata.lang: -
metadata.name: dc.contributor.author
metadata.value: Egorova, Nadezhda K.
metadata.lang: -
metadata.name: dc.date.accessioned
metadata.value: 2023-01-19T20:08:21Z
metadata.lang: -
metadata.name: dc.date.available
metadata.value: 2023-01-19T20:08:21Z
metadata.lang: -
metadata.name: dc.date.issued
metadata.value: 2022-09
metadata.lang: -
metadata.name: dc.identifier.citation
metadata.value: Tregubov V. P., Egorova N. K. Construction of a mechanical model of the human heart left ventricle in the process of its contraction. Vestnik of Saint Petersburg University. Applied Mathematics. Computer Science. Control Processes, 2022, vol. 18, iss. 3, pp. 402–409.
metadata.lang: en_GB
metadata.name: dc.identifier.other
metadata.value: https://doi.org/10.21638/11701/spbu10.2022.309
metadata.lang: -
metadata.name: dc.identifier.uri
metadata.value: http://hdl.handle.net/11701/38869
metadata.lang: -
metadata.name: dc.description.abstract
metadata.value: A detailed analysis of previous works on modeling the left ventricle (LV) of the human heart, starting with mechanical models in the form of the simplest three-dimensional figures (cylinder, sphere, ellipsoid of rotation) and ending with models using real contours of the human heart obtained by ultrasound examination of the human heart. A way of constructing a mechanical LV model based on the processing of its dynamic images obtained using computer and magnetic resonance imaging was proposed. Digitization of these images was carried out using numerical methods developed to create a finite element model were implemented in the CMISS system, which allows the use of finite element analysis methods to solve various complex problems. To avoid the need to operate with huge arrays of numbers (up to 10 thousand numerical values at each time of the MRI study) characteristic points of the three-dimensional LV image were selected and spline interpolation of the model framework written in C++ using the Cmgui module was performed. To describe the work of the mechanical model of LV reduction, the main components of this process were identified: transverse compression, longitudinal contraction and twisting. To describe them, simple mathematical characteristics were used.
metadata.lang: en_GB
metadata.name: dc.language.iso
metadata.value: ru
metadata.lang: en_GB
metadata.name: dc.publisher
metadata.value: St Petersburg State University
metadata.lang: en_GB
metadata.name: dc.relation.ispartofseries
metadata.value: Vestnik of St Petersburg University. Applied Mathematics. Computer Science. Control Processes;Volume 18; Issue 3
metadata.lang: -
metadata.name: dc.subject
metadata.value: human heart
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: left ventricle
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: mechanical model
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: transverse compression
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: longitudinal contraction
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: twisting
metadata.lang: en_GB
metadata.name: dc.title
metadata.value: Construction of a mechanical model of the human heart left ventricle in the process of its contraction
metadata.lang: en_GB
metadata.name: dc.type
metadata.value: Article
metadata.lang: en_GB
resources.filename: 14579-Текст статьи-48028-1-10-20221012.pdf
resources.url: https://dspace.spbu.ru/bitstream/11701/38869/1/14579-%d0%a2%d0%b5%d0%ba%d1%81%d1%82%20%d1%81%d1%82%d0%b0%d1%82%d1%8c%d0%b8-48028-1-10-20221012.pdf
resources.format: Adobe PDF
resources.size: 629,14 kB