scholarly journals Estimation of area function from 3-D magnetic resonance images of vocal tract using finite element method

2007 ◽  
Vol 28 (5) ◽  
pp. 346-348 ◽  
Author(s):  
Keita Mochizuki ◽  
Takayoshi Nakai
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Magnetic Resonance ◽  
Vocal Tract ◽  
Magnetic Resonance Images ◽  
Area Function ◽  
Element Method

Extraction of vocal tract area function from three‐dimensional magnetic resonance images using digital waveguide mesh

2008 ◽  
Vol 123 (5) ◽  
pp. 3736-3736
Author(s):  
Kenji Inoue ◽  
Hironori Takemoto ◽  
Tatsuya Kitamura ◽  
Shinobu Masaki ◽  
Hirotake Nakashima
Keyword(s):  
Magnetic Resonance ◽  
Vocal Tract ◽  
Three Dimensional ◽  
Magnetic Resonance Images ◽  
Area Function ◽  
Digital Waveguide Mesh ◽  
Digital Waveguide

Biomechanical Mechanisms and Hemodynamics in the Case of Stenosis

2019 ◽  
Vol 9 (10) ◽  
pp. 1334-1338
Author(s):  
Yu-Chou Huang ◽  
Han-Yi Cheng
Keyword(s):  
Mechanical Properties ◽  
Finite Element Method ◽  
Finite Element ◽  
Blood Flow ◽  
Magnetic Resonance ◽  
Blood Flow Velocity ◽  
Three Dimensional ◽  
Vascular Wall ◽  
Magnetic Resonance Images ◽  
Artery Segment

The objective of the present study is to investigate the blood flow of the artery with stenosis using finite element method. Three-dimensional 3-D artery models were reconstructed to simulate blood hemodynamic behaviors from magnetic resonance images. Many papers have studied 3-D finite element artery models, but few have examined the effects of different stenosis thicknesses in arteries. It is imperative to incorporate the mechanical properties of a diseased artery segment into treatment planning because stress is a strong biological trigger that directs atherosclerosis protection. Stress may also have predictive value to pinpoint regions at risk for restenosis. The results showed that stenosis of a 1 mm thickness decreased the blood flow velocity about 48%. This confirmed that stenosis also induces abnormal stress in the narrowest position of a vascular wall. This research provides information for arteries with stenosis in clinical treatment.

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