3D cardiac strain imaging using plane wave excitation and feature tracking

2011 ◽  
Author(s):  
Lin-Yi Tseng ◽  
Pai-Chi Li
Keyword(s):  
Plane Wave ◽  
Feature Tracking ◽  
Strain Imaging ◽  
Wave Excitation ◽  
Cardiac Strain

3D Cardiac Strain Imaging using a Novel Tracking Method

2009 ◽  
pp. 697-700 ◽  
Author(s):  
R. G. P. Lopata ◽  
M. M. Nillesen ◽  
I. H. Gerrits ◽  
H. H. G. Hansen ◽  
L. Kapusta ◽  
...  
Keyword(s):  
Strain Imaging ◽  
Tracking Method ◽  
Cardiac Strain

Efficient Plane Wave Excitation for 3-D Laguerre-Based FDTD Method

2014 ◽  
Vol 556-562 ◽  
pp. 4542-4546
Author(s):  
Zheng Chen ◽  
Yan Tao Duan ◽  
Ye Rong Zhang ◽  
Cheng Gao
Keyword(s):  
Plane Wave ◽  
Electric Fields ◽  
Laguerre Polynomials ◽  
Fdtd Method ◽  
Three Dimensional ◽  
Field Variable ◽  
Wave Excitation ◽  
Computationally Efficient ◽  
Scattering Problems ◽  
Scatter Field

In the three-dimensional (3-D) Laguerre-based finite-difference time-domain method, each electric field variable has the relationship with the adjacent twelve electric fields. This results in the tedious modification of field components adjacent to the total-field/scatter-field boundary in analyzing scattering problems. In addition, the plane wave excitation requires much time in evaluating the expansion coefficient of incident field which involves integral of the weighted Laguerre polynomials with respect to time. In this letter, the plane wave is introduced by defining a set of equivalent currents on a closed Huygen's surface and a computationally efficient one-dimensional auxiliary propagator is presented to speed up the plane wave excitation. Numerical results indicated that the proposed method is valid.

Analysis and applications of one-dimensional periodic dielectric gratings under plane wave excitation

2004 ◽  
Author(s):  
A. Coves ◽  
A. A. San Blas ◽  
B. Gimeno ◽  
Miguel V. Andres ◽  
Vincente E. Boria ◽  
...  
Keyword(s):  
Plane Wave ◽  
Wave Excitation ◽  
One Dimensional ◽  
Dielectric Gratings
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