"2"^^ . . . . . "Detection of ultrasonic cavitation based on low-frequency analysis of acoustic signal" . . "Detection of ultrasonic cavitation based on low-frequency analysis of acoustic signal" . . "S" . . "14110" . "The acoustic cavitation phenomenon constitutes a potential hazard in ultrasound diagnostics and therapy so that early and effective detection of cavitation is of great interest. However, cavitation might even bring a higher risk especially when an echocontrast agent based on microbubbles is used. The major goal of the present work was to develop a cavitation detection method based on increased level of cavitation noise in the range of low frequencies ( about 1 Hz). This method was applied in vitro using a model of body fluid containing a model echocontrast agent, such as 5% solution of lyophilized egg albumin, which was sonicated by ultrasound disintegrator. Ultrasound signal evokes cavitation in microbubble suspension accompanied by a certain level of cavitation acoustic noise. The level of noise voltage increased in the frequency range of 0.1 to 2 Hz in the presence of cavitation. Hence, this method makes it possible to determine the value of cavitation threshold."@en . . . . "Mornstein, Vojt\u011Bch" . "RIV/00216224:14110/07:00032317!RIV10-MSM-14110___" . "[DF5616FCA4F6]" . "Central European Journal of Biology" . . . "Brabec, Kamil" . "Detection of ultrasonic cavitation based on low-frequency analysis of acoustic signal"@en . "The acoustic cavitation phenomenon constitutes a potential hazard in ultrasound diagnostics and therapy so that early and effective detection of cavitation is of great interest. However, cavitation might even bring a higher risk especially when an echocontrast agent based on microbubbles is used. The major goal of the present work was to develop a cavitation detection method based on increased level of cavitation noise in the range of low frequencies ( about 1 Hz). This method was applied in vitro using a model of body fluid containing a model echocontrast agent, such as 5% solution of lyophilized egg albumin, which was sonicated by ultrasound disintegrator. Ultrasound signal evokes cavitation in microbubble suspension accompanied by a certain level of cavitation acoustic noise. The level of noise voltage increased in the frequency range of 0.1 to 2 Hz in the presence of cavitation. Hence, this method makes it possible to determine the value of cavitation threshold." . "PL - Polsk\u00E1 republika" . . "416561" . . . "2" . "9"^^ . . "RIV/00216224:14110/07:00032317" . "Detection of ultrasonic cavitation based on low-frequency analysis of acoustic signal"@en . "1895-104X" . . "2" . "2"^^ . . "ultrasound; ultrasonic cavitation; echocontrast agent; microbubbles; low-frequency analysis; cavitation threshold"@en .