The affection on the tissue lesions of difference frequency in dual-frequency high-intensity focused ultrasound (HIFU).
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 (ISAL = 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.
He
Pei Z
PZ
Department of Biomedical Engineering, Shanghai Jiaotong University, Shanghai 200030, China. hejia@sjtu.org
Xia
Rong M
RM
Duan
Shi M
SM
Shou
Wen D
WD
Qian
De C
DC
D000818:Animals; D008099:Liver / Q000473:pathology / Q000528:radiation effects*; D008114:Liver Neoplasms, Experimental / Q000473:pathology / Q000628:therapy; D013552:Swine; D013997:Time Factors; D014464:Ultrasonic Therapy / Q000009:adverse effects* / Q000379:methods*