Method for determining, in real time, the probability that target biological tissue is opposite an ultrasonic transducer

Device for determining, in real time, a probability that target biological tissue is opposite an ultrasonic transducer, said device comprising:

• at least one ultrasonic transducer configured to transmit and receive ultrasound signals;
• and
• a processor configured to perform the steps of:
• causing said ultrasonic transducer to transmit at least one ultrasonic signal into a biological tissue;
• causing said ultrasonic transducer to receive at least one ultrasonic signal which has been backscattered by said biological tissue;
• calculating at least two instantaneous parameters of said at least one backscattered ultrasonic signal;
• calculating a predictive value of the presence of an acoustic signature of a target biological tissue, said predictive value being calculated via a statistical law using said at least two calculated instantaneous parameters;
• estimating a probability that said target biological tissue is opposite said ultrasonic transducer, said estimation depending on said predictive value and at least one strength condition based on at least one of said two calculated instantaneous parameters;
• and
• indicating, via an indicator, in real time, the probability that said target biological tissue is opposite said ultrasonic transducer;
• and
• triggering, based on the estimated probability, a quantitative measurement of said target biological tissue when said ultrasonic transducer is opposite said target biological tissue.

Method for determining, in real time, a probability that target biological tissue is opposite an ultrasonic transducer, said method comprising:

• transmitting, via an ultrasonic transducer, at least one ultrasonic signal into a biological tissue;
• receiving, via said ultrasonic transducer, at least one ultrasonic signal which has been backscattered by said biological tissue;
• calculating at least two instantaneous parameters of said at least one backscattered ultrasonic signal, wherein a first parameter of said at least two calculated instantaneous parameters is a linearity of an envelope of said at least one backscattered ultrasonic signal;
• calculating a predictive value of the presence of an acoustic signature of a target biological tissue, said predictive value being calculated via a statistical law using said at least two calculated instantaneous parameters;
• and
• estimating a probability that said target biological tissue is opposite said ultrasonic transducer, said estimation depending on said calculated predictive value and/or on at least one strength condition based on at least the first parameter;
• and
• triggering, based on the estimated probability, a quantitative measurement of said target biological tissue when said ultrasonic transducer is opposite said target biological tissue.