The affection on the tissue lesions of difference frequency in dual-frequency high-intensity focused ultrasound (HIFU)

被引：27
|
作者：
He, PZ [1 ]
Xia, RM
Duan, SM
Shou, WD
Qian, DC
机构：
[1] Shanghai Jiao Tong Univ, Dept Biomed Engn, Shanghai 200030, Peoples R China
[2] Xuzhou Normal Univ, Dept Phys, Xuzhou 221009, Peoples R China
来源：
ULTRASONICS SONOCHEMISTRY | 2006年 / 13卷 / 04期
基金：
中国国家自然科学基金;
关键词：
HIFU; cavitation; USAE; tissue lesion; confocal region;
D O I：
10.1016/j.ultsonch.2005.05.008
中图分类号：
O42 [声学];
学科分类号：
070206 ; 082403 ;
摘要：
The lesions induced by dual-frequency high-intensity focused ultrasound (HIFU) in freshly excised porcine livers were investigated and compared with the lesions induced by conventional single-frequency HIFU. The results have shown that using different exposure time resulted in lesions of different sizes in both dual-frequency and single-frequency HIFU modes at the same intensity level (I-SAL=808 W cm(-2)), but the dimensions of lesions in dual-frequency mode were obviously larger than those in single-frequency mode. A much possible explanation was suggested for the results and the possibilities of applications in the future were also discussed in brief. (C) 2005 Elsevier B.V. All rights reserved.
引用
收藏
页码：339 / 344
页数：6
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