Feasibility of using ultrasound phased arrays for MRI monitored noninvasive surgery

被引：47

作者：

Hynynen, K ^{[1
]}

Chung, A ^{[1
]}

Fjield, T ^{[1
]}

Buchanan, M ^{[1
]}

Daum, D ^{[1
]}

Colucci, V ^{[1
]}

Lopath, P ^{[1
]}

Jolesz, F ^{[1
]}

机构：

[1] HARVARD UNIV,SCH MED,BOSTON,MA 02115

来源：

IEEE TRANSACTIONS ON ULTRASONICS FERROELECTRICS AND FREQUENCY CONTROL | 1996年 / 43卷 / 06期

关键词：

D O I：

10.1109/58.542049

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

The purpose of this paper was to evaluate the in vivo feasibility of using phased arrays for MRI guided ultrasound surgery, Two different array concepts were investigated: a spherically curved concentric ring array to move the focus along the central iuds and a spherically curved 16 square element array to make the focus larger. Rabbit thigh muscles were exposed in vivo in a 1.5 T MRI scanner to evaluate the array performance. The results showed that both of the arrays performed as expected, and the focus could be moved and enlarged, In addition, adequate power could be delivered from the arrays to necrose in vivo muscle tissue in 10 s, This study was the first implementation of phased arrays for MRI guided ultrasound surgery, The results demonstrate that phased arrays have significant potential for noninvasive tissue coagulation.

引用

页码：1043 / 1053

页数：11

共 32 条

[1] TRANSIENT FIELDS OF CONCAVE ANNULAR ARRAYS [J].