Title :
Simulation of echographic image of contrast agent
Author :
Gergault, L. ; Cachard, C. ; Gimenez, G.
Author_Institution :
CNRS, Villeurbanne, France
Abstract :
For the evaluation of the efficiency of UltraSound Contrast Agents (USCA) and their behavior during their circulation in blood system, a simulation of an a priori image of USCA under in vivo conditions is developed. To deal with the resonant response of bubbles, the frequency response of each particle has to be taken into account. Then, corresponding images in the circulatory system are presented, and the effects of the changes of USCA properties on the images can be evaluated. Results of simulation with an unfocused 5 MHz central frequency transducer are presented. A distribution in diameter between 0.1 μm and 10 μm and a concentration of 104 particles per ml for the USCA are assumed
Keywords :
biomedical ultrasonics; blood; bubbles; frequency response; modelling; 0.1 to 10 mum; 5 MHz; US imaging; blood circulation system; central frequency transducer; contrast agent echographic image simulation; medical diagnostic imaging; particle concentration; ultrasound contrast agents efficiency evaluation; unfocused 5 MHz central frequency transducer; Acoustic scattering; Acoustic transducers; Equations; Frequency response; In vivo; Particle scattering; Pulse measurements; Rayleigh scattering; Resonance; Ultrasonic imaging;
Conference_Titel :
Ultrasonics Symposium, 1998. Proceedings., 1998 IEEE
Conference_Location :
Sendai
Print_ISBN :
0-7803-4095-7
DOI :
10.1109/ULTSYM.1998.765303
