TY - JOUR
T1 - High-speed observation of cavitation bubble clouds near a tissue boundary in high-intensity focused ultrasound fields
AU - Chen, Hong
AU - Li, Xiaojing
AU - Wan, Mingxi
AU - Wang, Supin
N1 - Funding Information:
The work was supported by the Key Program of National Natural Science Foundation of China (No. 30630024).
PY - 2009/3
Y1 - 2009/3
N2 - Cavitation bubble clouds generated near a tissue boundary by high-intensity focused ultrasound (HIFU) were studied using high-speed photography. In all, 171 image series were captured during the initial 100 ms of continuous HIFU exposure, which showed that cavitation bubble clouds at the tissue boundary organized into two structures - "cone-shape bubble cloud structure" recorded in 146 image series and "crown-shape bubble cloud structure" recorded in 18 image series. The remaining 7 image series showed the interchanging of these two structures. It was found that when cavitation bubbles first appeared at the tissue boundary, they developed to cone-shape bubble cloud. The cone-shape bubble cloud structure was characterized by a nearly fixed tip in front of the tissue boundary. When the cavitation bubbles initially appeared away from the tissue boundary they evolved into a crown-shape bubble cloud. Deformation of tissue boundary was shown in all the recorded image series.
AB - Cavitation bubble clouds generated near a tissue boundary by high-intensity focused ultrasound (HIFU) were studied using high-speed photography. In all, 171 image series were captured during the initial 100 ms of continuous HIFU exposure, which showed that cavitation bubble clouds at the tissue boundary organized into two structures - "cone-shape bubble cloud structure" recorded in 146 image series and "crown-shape bubble cloud structure" recorded in 18 image series. The remaining 7 image series showed the interchanging of these two structures. It was found that when cavitation bubbles first appeared at the tissue boundary, they developed to cone-shape bubble cloud. The cone-shape bubble cloud structure was characterized by a nearly fixed tip in front of the tissue boundary. When the cavitation bubbles initially appeared away from the tissue boundary they evolved into a crown-shape bubble cloud. Deformation of tissue boundary was shown in all the recorded image series.
KW - Cavitation bubble clouds
KW - High-intensity focused ultrasound
KW - High-speed photography
KW - Tissue boundary
UR - http://www.scopus.com/inward/record.url?scp=60849135693&partnerID=8YFLogxK
U2 - 10.1016/j.ultras.2008.09.010
DO - 10.1016/j.ultras.2008.09.010
M3 - Article
C2 - 19041998
AN - SCOPUS:60849135693
SN - 0041-624X
VL - 49
SP - 289
EP - 292
JO - Ultrasonics
JF - Ultrasonics
IS - 3
ER -