Optical properties of normal and coagulated tissues: Measurements using combination of optoacoustic and diffuse reflectance techniques

被引:2
作者
Esenaliev, RO [1 ]
Larin, KV [1 ]
Larina, IV [1 ]
Motamedi, M [1 ]
Oraevsky, AA [1 ]
机构
[1] Univ Texas, Med Branch, Ctr Biomed Engn MS 0456, Galveston, TX 77555 USA
来源
SARATOV FALL MEETING '98: LIGHT SCATTERING TECHNOLOGIES FOR MECHANICS, BIOMEDICINE, AND MATERIAL SCIENCE | 1999年 / 3726卷
关键词
tissue coagulation; optoacoustics; canine liver; real-time monitoring;
D O I
10.1117/12.341443
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Measurement of optical properties during coagulation can be used for monitoring of the extent of thermal Injury in real time. Knowing optical properties of native and coagulated tissues one can optimize treatment parameters and provide precise coagulation of malignant and benign lesions. Attenuation coefficient and total diffuse reflectance of native and coagulated canine liver were measured with the use of optoacoustic and diffuse reflectance techniques. Absorption and reduced scattering coefficients were calculated using the obtained data. Total diffuse reflectance, absorption, reduced scattering, and attenuation coefficients of canine liver increase due to protein coagulation. The capability of optoacoustic technique to detect directly changes in attenuation coefficient can be used for monitoring of tissue coagulation in real time.
引用
收藏
页码:560 / 566
页数:7
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