Ultrasonic attenuation of dog tissues as a function of temperature

Author

Damianou, Christakis A. ; Sanghvi, Narendra T. ; Fry, Francis J.

Author_Institution

Dept. of Physiol. & Biophys., Indiana Univ., Indianapolis, IN, USA

Volume

2

fYear

1995

fDate

7-10 Nov 1995

Firstpage

1203

Abstract

The effect of temperature and thermal dose referenced at 43°C on the attenuation and absorption was studied in dog muscle, liver and kidney in vitro. It was found that the attenuation and absorption increased for temperatures higher than 50°C, and eventually reached a maximum at 65°C. The change in attenuation or absorption when necrosis is produced was to about twice the value at 37°C. The change in attenuation or absorption occurred at thermal doses of 100-1000 min which corresponds to the range of threshold of necrosis. The maximum attenuation or absorption was reached at thermal dosages in the order of 10⁷ min

Keywords

bioacoustics; biothermics; kidney; liver; muscle; ultrasonic absorption; 100 to 1000 min; 10E7 min; 20 to 70 degC; US absorption; dog muscle; dog tissues; in vitro; kidney; liver; necrosis; temperature dependence; thermal dose; threshold; ultrasonic attenuation; Absorption; Attenuation measurement; Frequency; In vitro; Liver; Muscles; Pulse measurements; Temperature measurement; Transducers; Ultrasonic variables measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Ultrasonics Symposium, 1995. Proceedings., 1995 IEEE

Conference_Location

Seattle, WA

ISSN

1051-0117

Print_ISBN

0-7803-2940-6

Type

conf

DOI

10.1109/ULTSYM.1995.495776

Filename

495776