Cargando…

Longitudinal Impedance Tomography for Blood Pressure Characterization of Valve Deformation

Aorta is formed in a dynamic environment which gives rise to imbalances between many forces that tend to extend the diameter and length. Furthermore, internal forces tend to resist this extension. Impedance tomography can show this imbalance to stimulate the stenosis of aortic valve, growth of the e...

Descripción completa

Detalles Bibliográficos
Autores principales: Vahabi, Zahra, Amirfattahi, Rasool
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Medknow Publications & Media Pvt Ltd 2015
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4460671/
https://www.ncbi.nlm.nih.gov/pubmed/26120568
_version_ 1782375411353649152
author Vahabi, Zahra
Amirfattahi, Rasool
author_facet Vahabi, Zahra
Amirfattahi, Rasool
author_sort Vahabi, Zahra
collection PubMed
description Aorta is formed in a dynamic environment which gives rise to imbalances between many forces that tend to extend the diameter and length. Furthermore, internal forces tend to resist this extension. Impedance tomography can show this imbalance to stimulate the stenosis of aortic valve, growth of the elastic, collagen and to effectively reduce the stresses in the underlying tissue. In blood flow, auscultation noises occurred and in the echocardiography decrease in left ventricular ejection speed can be observed. In this paper, we have modeled an aorta based on anatomical studies to simulate natural, 20% and 30% stenosis as usual heart disease to early diagnosis. Valve deformation causes different impedance tomography in 3D mesh of aorta as blood pressure. Remodeling of aorta and its flow is found when a cylindrical slice of the fully retracted blood aorta is cut longitudinally through the wall.
format Online
Article
Text
id pubmed-4460671
institution National Center for Biotechnology Information
language English
publishDate 2015
publisher Medknow Publications & Media Pvt Ltd
record_format MEDLINE/PubMed
spelling pubmed-44606712015-06-26 Longitudinal Impedance Tomography for Blood Pressure Characterization of Valve Deformation Vahabi, Zahra Amirfattahi, Rasool J Med Signals Sens Original Article Aorta is formed in a dynamic environment which gives rise to imbalances between many forces that tend to extend the diameter and length. Furthermore, internal forces tend to resist this extension. Impedance tomography can show this imbalance to stimulate the stenosis of aortic valve, growth of the elastic, collagen and to effectively reduce the stresses in the underlying tissue. In blood flow, auscultation noises occurred and in the echocardiography decrease in left ventricular ejection speed can be observed. In this paper, we have modeled an aorta based on anatomical studies to simulate natural, 20% and 30% stenosis as usual heart disease to early diagnosis. Valve deformation causes different impedance tomography in 3D mesh of aorta as blood pressure. Remodeling of aorta and its flow is found when a cylindrical slice of the fully retracted blood aorta is cut longitudinally through the wall. Medknow Publications & Media Pvt Ltd 2015 /pmc/articles/PMC4460671/ /pubmed/26120568 Text en Copyright: © Journal of Medical Signals and Sensors http://creativecommons.org/licenses/by-nc-sa/3.0 This is an open-access article distributed under the terms of the Creative Commons Attribution-Noncommercial-Share Alike 3.0 Unported, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Original Article
Vahabi, Zahra
Amirfattahi, Rasool
Longitudinal Impedance Tomography for Blood Pressure Characterization of Valve Deformation
title Longitudinal Impedance Tomography for Blood Pressure Characterization of Valve Deformation
title_full Longitudinal Impedance Tomography for Blood Pressure Characterization of Valve Deformation
title_fullStr Longitudinal Impedance Tomography for Blood Pressure Characterization of Valve Deformation
title_full_unstemmed Longitudinal Impedance Tomography for Blood Pressure Characterization of Valve Deformation
title_short Longitudinal Impedance Tomography for Blood Pressure Characterization of Valve Deformation
title_sort longitudinal impedance tomography for blood pressure characterization of valve deformation
topic Original Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4460671/
https://www.ncbi.nlm.nih.gov/pubmed/26120568
work_keys_str_mv AT vahabizahra longitudinalimpedancetomographyforbloodpressurecharacterizationofvalvedeformation
AT amirfattahirasool longitudinalimpedancetomographyforbloodpressurecharacterizationofvalvedeformation