Details:

Alternative Title:
Opt Lett
Personal Author:
Yao, Junjie ; Ke, Haixin ; Tai, Stephen ; Zhou, Yong ; Wang, Lihong V.
Yao, Junjie ; Ke, Haixin ; Tai, Stephen ; Zhou, Yong ; Wang, Lihong V. Less -
Description:
Photoacoustic thermography is a promising tool for temperature measurement in deep tissue. Here we propose an absolute temperature measurement method based on the dual temperature dependences of the Grüneisen parameter and the speed of sound in tissue. By taking ratiometric measurements at two adjacent temperatures, we can eliminate the factors that are temperature irrelevant but difficult to correct for in deep tissue. To validate our method, absolute temperatures of blood-filled tubes embedded ~9 mm deep in chicken tissue were measured in a biologically relevant range from 28°C to 46°C. The temperature measurement accuracy was ~0.6°C. The results suggest that our method can be potentially used for absolute temperature monitoring in deep tissue during thermotherapy.
Subject:
[+]
Animals
Article
Mammary Glands, Animal
Photoacoustic Techniques
Sound
Temperature
Thermography

Source:
Opt Lett. 2013; 38(24):5228-5231
Pubmed ID:
24322224
Pubmed Central ID:
PMC3901074
Document Type:
Journal Article
Funding:
T32 EB014855/EB/NIBIB NIH HHSUnited States/ ; R01 CA134539/CA/NCI NIH HHSUnited States/ ; R01 CA157277/CA/NCI NIH HHSUnited States/ ; U54 CA136398/CA/NCI NIH HHSUnited States/ ; R01 CA159959/CA/NCI NIH HHSUnited States/ ; ... More +
T32 EB014855/EB/NIBIB NIH HHSUnited States/ ; R01 CA134539/CA/NCI NIH HHSUnited States/ ; R01 CA157277/CA/NCI NIH HHSUnited States/ ; U54 CA136398/CA/NCI NIH HHSUnited States/ ; R01 CA159959/CA/NCI NIH HHSUnited States/ ; DP1 EB016986/EB/NIBIB NIH HHSUnited States/ ; R01 EB008085/EB/NIBIB NIH HHSUnited States/ ; DP1 EB016986/DP/NCCDPHP CDC HHSUnited States/ Less -
Collection(s):
CDC Public Access
Main Document Checksum:
[+]
urn:sha256:cf6e3e49538e3a08b44f4fef8d9974c2e4f1c7ccd1f2d885e3c7ac03251f424e
File Type:

Supporting Files

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