Attenuation and velocity imaging of bone tissue

Author

Giesey, J.J. ; Stemm, C.A. ; Roth, D.A.

Author_Institution

Dept. of Electr. & Comput. Eng., Ohio Univ., Athens, OH, USA

fYear

1990

fDate

4-7 Dec 1990

Firstpage

1447

Abstract

Ultrasound images were produced showing the average ultrasonic attenuation coefficient and velocity of the bone of the appendicular skeleton in vivo. A pair of transducers was used to acquire attenuation and time-of-flight projections and pulse-echo images of both sides of the appendage. An expert system was developed to detect boundaries from the pulse-echo scans. Images were constructed considering the distance of soft tissue and bone found along each line. For an image of a test-object the measured dimensions, attenuation coefficient, and acoustic velocity had an accuracy of ±2.6 mm, 12%, and 2%, respectively. Images of a human wrist showed regions of high attenuation and velocity due to the bone

Keywords

acoustic imaging; biomedical ultrasonics; bone; ultrasonic absorption; ultrasonic velocity; appendicular skeleton; bone tissue; boundaries detection; expert system; human wrist; pulse-echo images; soft tissue; time-of-flight projections; transducer pair; ultrasonic attenuation coefficient; Acoustic pulses; Acoustic signal detection; Attenuation; Biological tissues; Bone tissue; Expert systems; In vivo; Skeleton; Ultrasonic imaging; Ultrasonic transducers;

fLanguage

English

Publisher

ieee

Conference_Titel

Ultrasonics Symposium, 1990. Proceedings., IEEE 1990

Conference_Location

Honolulu, HI

Type

conf

DOI

10.1109/ULTSYM.1990.171604

Filename

171604