Method for determining, in real time, the probability that target biological tissue is opposite an ultrasonic transducer
A technology of target biological tissue and ultrasonic transducer, which is applied in the real-time determination of the possibility that the target biological tissue is opposite to the ultrasonic transducer, and can solve problems such as errors in interpretation.
Active Publication Date: 2014-06-25
ECHOSENS SA
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[0010] Furthermore, however, operators with this knowledge make errors in the interpretation of images used for probe positioning
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Embodiment 2
[0194] Carry out 2D (two-dimensional) or 3D (three-dimensional) measurements, and more advantageously, especially in 1D (one-dimensional), in other words on one ultrasound line: practically, 2D or 3D measurements are not necessary, so back Data processing of scattered ultrasound signals is faster,
[0195] Taking into account the sensitivity and frequency of the ultrasonic transducer, in other words for a specific ultrasonic transducer, the sensitivity and frequency of the specific ultrasonic transducer provided by the manufacturer, in order to adapt the Signals transmitted to the laws of statistics;
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The invention relates to a method (100) for determining, in real time, the probability that target biological tissue is opposite an ultrasonic transducer, said method (100) comprising the following steps: transmitting (101), via an ultrasonic transducer, an ultrasonic signal into biological tissue; said ultrasonic transducer receiving (102) said transmitted ultrasonic signal which has been backscattered by said biological tissue; calculating (103) at least two instantaneous parameters E, LIN, ATT of said backscattered ultrasonic signal; calculating (104) a predictive value P of the presence of an acoustic signature of target biological tissue, said predictive value P being calculated via a statistical law using said at least two calculated instantaneous parameters E, LIN, ATT; estimating (105) the probability that said target biological tissue is opposite said ultrasonic transducer, said estimation (105) depending on said calculated predictive value P and / or on at least one strength condition based on at least one of said two calculated instantaneous parameters E, LIN, ATT.
Description
technical field [0001] The present invention relates to a method for determining in real time the likelihood that a target biological tissue is located opposite an ultrasound transducer. For example, the ultrasound transducer may belong to a so-called "blind" or "partially blind" measuring probe. "Blind" means that the measurement device to which the measurement probe is connected does not have a live imaging mode. Furthermore, "partially blind" means that the imaging mode of the measurement device is limited to one-dimensional (1D) ultrasound lines of the A-SCAN type optionally associated with the M-type mode. Background technique [0002] Conventionally, in order to measure a quantitative or qualitative parameter of a biological tissue, a measurement probe is placed opposite said tissue. [0003] When it is desired to position a blind or partially blind measuring probe opposite the target biological tissue, this positioning can be carried out in two ways: [0004] Posit...
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IPC IPC(8): A61B8/08
CPCA61B8/4483A61B8/5223A61B8/0858A61B8/085A61B8/461A61B8/5207A61B8/08
Inventor L·桑德兰V·米耶特J·乌德里S·奥迪埃Y·莫菲
Owner ECHOSENS SA