Effect of Abdominal Wall Inhomogeneities on the Focusing of an Ultrasonic Beam at Different Positions of the Transducer

A study is performed of the effect acoustic inhomogeneities of the abdominal wall have on the focusing of a powerful ultrasonic beam at different positions of a transducer. A focused beam generated by a 1 MHz transducer is modeled numerically using an acoustic model of the human body created via com...

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Bibliographic Details
Published inBulletin of the Russian Academy of Sciences. Physics Vol. 85; no. 6; pp. 675 - 680
Main Authors Bobina, A. S., Rosnitskiy, P. B., Khokhlova, T. D., Yuldashev, P. V., Khokhlova, V. A.
Format Journal Article
LanguageEnglish
Published Moscow Pleiades Publishing 01.06.2021
Springer Nature B.V
Subjects
Abdomen
Computed tomography
Focusing
Hadrons
Heavy Ions
Inhomogeneity
Ion beams
Nuclear Physics
Physics
Physics and Astronomy
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Summary:A study is performed of the effect acoustic inhomogeneities of the abdominal wall have on the focusing of a powerful ultrasonic beam at different positions of a transducer. A focused beam generated by a 1 MHz transducer is modeled numerically using an acoustic model of the human body created via computer-aided tomography. It is found that the focal maximum of the field of intensity shifts in space, and the maximum achievable intensity in the beam when focusing through the acoustically inhomogeneous abdominal wall is reduced. The best location of the transducer is selected to minimize distortions.
ISSN:1062-8738
1934-9432
DOI:10.3103/S1062873821060058