Title :
Acoustic characteristics of HIFU using the finite difference time domain method in tissue
Author :
Chan-Hee Park ; Sang-Hwa Jeong
Author_Institution :
Dept. of Mech. Eng., Chosun Univ., Gwangju, South Korea
Abstract :
The micro robot was controlled by the electromagnetic actuation(EMA) systems for the necrosis of chronic total occlusion(CTO) in blood vessels. But, it was difficult that micro robot went through the lesion because the outside tissues of CTO were hardened by the vascular calcification of the precipitate. Therefore, introduction of high intensity focused ultrasound(HIFU) made that micro robot penetrated the fibrous cap of CTO easy. In this paper, focal distance and pressure of HIFU were estimated by the finite difference time domain(FDTD) method in tissue.
Keywords :
biological tissues; biomedical ultrasonics; finite difference time-domain analysis; medical robotics; microrobots; patient treatment; CTO necrosis; EMA systems; FDTD method; HIFU acoustic characteristics; HIFU focal distance; HIFU pressure; blood vessels; chronic total occlusion; electromagnetic actuation systems; finite difference time domain method; high intensity focused ultrasound; lesion; microrobot; tissues; Atmospheric modeling; Biomechatronics; Bones; Read only memory; Robots; Chronic Total Occlusion; Couplant; Electromagnetic Actuation System; Finite Difference Time Domain; High Intensity Focused Ultrasound;
Conference_Titel :
Robotics (ISR), 2013 44th International Symposium on
Conference_Location :
Seoul
DOI :
10.1109/ISR.2013.6695658
