Simulation checks in ultrasonic computed tomography.
The contribution presents some results obtained on the way to checking (and partly complementing) the standard reconstruction procedures in USCT by wave-equation based simulations. Mathematical models emerging from the transparent physical background for both the surrounding fluid and the object tissue are presented, followed by the present results of developing a realistic original finite-element-method based simulation. With respect to the need of comparison with the calibration measurements, a preliminary optimization of initial guesses to boundary conditions at the transducer array is discussed, based on a point-source model. The computational requirements of the procedures are also mentioned together with concrete examples of achieved results.
Zacal
J
J
Dept. of Biomedical Eng., FEEC, Brno University of Technology, Czech Republic.
Hemzal
D
D
Jan
J
J
Dedek
L
L
Jirik
R
R
Ruiter
N
N
D001330:Electronic Data Processing; D008962:Models, Theoretical; D014463:Ultrasonography