Magnetic Induction Tomography: A feasibility study of brain oedema detection using a finite element human head model

2007 ◽  
pp. 480-483 ◽  
Author(s):  
Robert Merwa ◽  
Hermann Scharfetter
Keyword(s):  
Finite Element ◽  
Feasibility Study ◽  
Magnetic Induction ◽  
Brain Oedema ◽  
Human Head ◽  
Head Model ◽  
Human Head Model ◽  
Magnetic Induction Tomography

Detection of brain oedema using magnetic induction tomography: a feasibility study of the likely sensitivity and detectability

2004 ◽  
Vol 25 (1) ◽  
pp. 347-354 ◽  
Author(s):  
Robert Merwa ◽  
Karl Hollaus ◽  
Oszkar Biró ◽  
Hermann Scharfetter
Keyword(s):  
Feasibility Study ◽  
Magnetic Induction ◽  
Brain Oedema ◽  
Magnetic Induction Tomography

3A02 Reduction in construction time of three-dimension human head model by finite element method

2013 ◽  
Vol 2013.25 (0) ◽  
pp. 465-466
Author(s):  
JaeKwon LEE ◽  
Yuelin ZHANG ◽  
Hiromichi NAKADATE ◽  
Satoshi FUJIWARA ◽  
Shigeru AOMURA
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Human Head ◽  
Head Model ◽  
Three Dimension ◽  
Construction Time ◽  
Human Head Model ◽  
Element Method

scholarly journals Finite-element analysis of microwave scattering from a three-dimensional human head model for brain stroke detection

2018 ◽  
Vol 5 (7) ◽  
pp. 180319
Author(s):  
Awais Munawar Qureshi ◽  
Zartasha Mustansar ◽  
Samah Mustafa
Keyword(s):  
Finite Element ◽  
Dielectric Properties ◽  
Electric Field ◽  
Three Dimensional ◽  
Human Head ◽  
Head Model ◽  
Different Types ◽  
Brain Stroke ◽  
Human Head Model ◽  
Brain Stroke Detection

In this paper, a detailed analysis of microwave (MW) scattering from a three-dimensional (3D) anthropomorphic human head model is presented. It is the first time that the finite-element method (FEM) has been deployed to study the MW scattering phenomenon of a 3D realistic head model for brain stroke detection. A major contribution of this paper is to add anatomically more realistic details to the human head model compared with the literature available to date. Using the MRI database, a 3D numerical head model was developed and segmented into 21 different types through a novel tissue-mapping scheme and a mixed-model approach. The heterogeneous and frequency-dispersive dielectric properties were assigned to brain tissues using the same mapping technique. To mimic the simulation set-up, an eight-elements antenna array around the head model was designed using dipole antennae. Two types of brain stroke (haemorrhagic and ischaemic) at various locations inside the head model were then analysed for possible detection and classification. The transmitted and backscattered signals were calculated by finding out the solution of the Helmholtz wave equation in the frequency domain using the FEM. FE mesh convergence analysis for electric field values and comparison between different types of iterative solver were also performed to obtain error-free results in minimal computational time. At the end, specific absorption rate analysis was conducted to examine the ionization effects of MW signals to a 3D human head model. Through computer simulations, it is foreseen that MW imaging may efficiently be exploited to locate and differentiate two types of brain stroke by detecting abnormal tissues’ dielectric properties. A significant contrast between electric field values of the normal and stroke-affected brain tissues was observed at the stroke location. This is a step towards generating MW scattering information for the development of an efficient image reconstruction algorithm.

21107 Study on influence of several boundary conditions in finite element analysis of human head model under impact loading

2006 ◽  
Vol 2006.12 (0) ◽  
pp. 101-102
Author(s):  
Yuelin ZHANG ◽  
Shigeru AOMURA ◽  
Masao WATARI ◽  
Satoshi FUJIWARA ◽  
Akiyoshi NISHIMURA
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Boundary Conditions ◽  
Impact Loading ◽  
Human Head ◽  
Head Model ◽  
Element Analysis ◽  
Human Head Model

Prediction of subdural haematoma based on a 3D finite element human head model

2008 ◽  
Vol 3 (3) ◽  
pp. 276 ◽  
Author(s):  
Shamik Sarkar ◽  
Amit Roychowdhury ◽  
Ujjalbhanu Ghosh
Keyword(s):  
Finite Element ◽  
Subdural Haematoma ◽  
Human Head ◽  
Head Model ◽  
3D Finite Element ◽  
Human Head Model
Sign in / Sign up

Export Citation Format

Share Document