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METHOD AND SYSTEM FOR SPECTRAL ANALYSIS AND DETERMINATION OF A MARKER MAKING IT POSSIBLE TO ENSURE THE SAFETY OF THERAPEUTIC ULTRASOUND INTERVENTIONS
METHOD AND SYSTEM FOR SPECTRAL ANALYSIS AND DETERMINATION OF A MARKER MAKING IT POSSIBLE TO ENSURE THE SAFETY OF THERAPEUTIC ULTRASOUND INTERVENTIONS
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机译:用于光谱分析和测定标记的方法和系统,使得可以确保治疗超声干预的安全性
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摘要
A method for performing spectral analysis and determining a safety marker includes an assembly via which: regularly, during shot Bb, at a series of times ta, the variation as a function of time in the spectral lines corresponding to the subharmonic and ultra-harmonic frequencies of a received acoustic-response signal of the microbubbles is measured, and the variation as a function of time, over the times ta, in a safety marker is determined and quantified, the safety marker being defined, at each time ta, by a number MDDa equal to the ratio of the sum of the areas of the spectral lines, measured at the time ta and corresponding to the subharmonic and/or ultra-harmonic frequencies of the received acoustic-response signal of the microbubbles, to the sum of the areas of the spectral lines, measured at the first time t1 and corresponding to the subharmonic and/or ultra-harmonic frequencies of the acoustic-response signal of the microbubbles. A system for performing spectral analysis and determining a safety marker implements said method.
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