Ultrasonic heating of the skull.

Ultrasonic heating of the skull.
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DOI:
10.1121/1.398806
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发表时间:
1989-11
期刊:
The Journal of the Acoustical Society of America
影响因子:
--
通讯作者:
E. Carstensen;S. Child;S. Norton;W. Nyborg
E. Carstensen;S. Child;S. Norton;W. Nyborg
中科院分区:
其他
文献类型:
--
作者:
E. Carstensen;S. Child;S. Norton;W. Nyborg

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相对简单的分析表明,在某些情况下,诊断超声设备可能会达到对组织产生显着加热的输出水平,特别是在传播路径包括骨骼的情况下。使用啮齿动物对这些预测进行的实验测试表明,在医学相关频率下具有锐聚焦场的颅骨中会产生 3 摄氏度/W/cm2 数量级的温度增量。
Comparatively simple analysis shows that diagnostic ultrasound devices, in some cases, may approach output levels that can produce significant heating of tissues, particularly if the propagation path includes bone. Experimental tests of these predictions using rodents show that temperature increments of the order of 3 degrees C/W/cm2 are produced in skull bone with sharply focused fields at medically relevant frequencies.