Optoacoustic laser monitoring of cooling and freezing of tissues

被引：20

作者：

Larin, KV ^{[1
]}

Larina, IV ^{[1
]}

Motamedi, M ^{[1
]}

Esenaliev, RO ^{[1
]}

机构：

[1] Univ Texas, Med Branch, Galveston, TX 77555 USA

来源：

QUANTUM ELECTRONICS | 2002年 / 32卷 / 11期

关键词：

freezing and cooling of tissues; optoacoustics; optical properties; real-time monitoring;

D O I：

10.1070/QE2002v032n11ABEH002327

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Real-time monitoring of cooling and freezing of tissues, cells, and other biological objects with a high spatial and time resolution, which is necessary for selective destruction of cancer and benign tumours during cryotherapy, as well as for preventing any damage to the structure and functioning of biological objects in cryobiology, is considered. The optoacoustic method, based on the measurement and analysis of acoustic waves induced by short laser pulses, is proposed for monitoring the cooling and freezing of the tissue. The effect of cooling and freezing on the amplitude and time profile of acoustic signals generated in real tissues and in a model object is studied. The experimental results indicate that the optoacoustic laser technique can be used for real-time monitoring of cooling and freezing of biological objects with a submillimeter spatial resolution and a high contrast.

引用

页码：953 / 958

页数：6

共 29 条

[1] Engineering-based contributions in cryobiology [J].