| 摘要 |
A method of ultrasonic detection and localization of contrast agent microbubbles wherein the decision as to whether or not the received ultrasonic signals indicate the presence of a single microbubble or a small microbubble population is made by analyzing the projections of the spectra of said received ultrasonic signals in multidimensional spaces, and by comparing such projections with the projections in said multidimensional spaces of sample control signals corresponding to known conditions of presence and/or absence of single microbubbles and/or small microbubble populations.
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