公开(公告)号：EP1424683A1

公开(公告)日：2004-06-02

申请号：EP03103825.0

申请日：2003-10-15

申请人： Esaote S.p.A.

发明人： Trucco, Andrea

IPC分类号： G10K11/34

CPC分类号： G01S7/52095 ,  G01S7/52038 ,  G10K11/341

摘要： A method for acoustic, particularly ultrasonic receive beamforming, especially designed for ultrasonic imaging, including the steps of transmitting, through an array of transmitting electroacoustic transducers, at least one beam of acoustic waves into one body under examination, which waves are transmitted at a first transmission frequency; receiving the acoustic waves reflected by the body under examination through an array of receiving electroacoustic transducers; synchronizing the signals received from each transducer by applying receive delays to the various receive signals from the different transducers; summing the synchronized signals from the different transducers; separating, from the receive signals, the component having a second frequency different from the transmission frequency, particularly the frequency of an even harmonic of the transmission frequency; transforming the sum signals at a harmonic , especially the second harmonic, of the transmission frequency, into image data of the structure of the body under examination, to be displayed by display means. According to the invention, delays are also determined as a function of the frequency of the receive signal that is selected for image construction, and as a linear or non linear function of the position of the receiving transducers in the array of receiving transducers.

摘要翻译： 一种用于声学方法，特别是超声波接收波束形成，爱尤其用于超声成像设计的，包括发射的步骤，通过对被检查发射电声转换器，声波中的至少一个光束为一体的阵列，其中波是反式mitted在第一 传输频率; 通过于接收电声变换器阵列接收由被检查体的反射声波; 同步通过将接收到的延迟的各种从不同换能器的接收信号从每个换能器接收到的信号; 求和来自不同换能器的同步信号的装置; 分离，从接收信号中，具有从所述发送频率，的偶次谐波的发送频率中的特别是频率不同的第二频率的分量; 在一个谐波，爱特别是第二谐波变换的和信号，发送频率的，进入体内的被检查结构的图像数据，由显示手段显示。 。根据本发明，延迟是这样确定的开采作为接收信号的频率的函数被选择用于图像构造并，作为一个直链或接收换能器的接收换能器的阵列中的位置的非线性函数。

公开(公告)号：EP1424683B1

公开(公告)日：2011-03-09

申请号：EP03103825.0

申请日：2003-10-15

申请人： Esaote S.p.A.

发明人： Trucco, Andrea

IPC分类号： G10K11/34

CPC分类号： G01S7/52095 ,  G01S7/52038 ,  G10K11/341

公开(公告)号：EP1712182A1

公开(公告)日：2006-10-18

申请号：EP05425222.6

申请日：2005-04-14

申请人： Esaote S.p.A.

发明人： Trucco, Andrea ,  Cecchini, Daniele ,  Di Resta, Luca

IPC分类号： A61B8/00

CPC分类号： G01S7/52039 ,  A61B8/481 ,  A61N7/00 ,  G01S7/52038 ,  G01S15/8977

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.

摘要翻译： 超声波检测和造影剂微泡的定位的方法worin决定作为对接收的超声波信号是否指示单个微泡或小的微泡群体的存在是通过分析所述的光谱的预测作出接收的超声信号在 多维的空间，并通过用在说突起样品控制信号的多维空间中与之对应的存在和/或不存在单微泡和/或小的微泡群体中的公知的条件进行比较搜索预测。

公开(公告)号：EP1480199A1

公开(公告)日：2004-11-24

申请号：EP04101916.7

申请日：2004-05-04

申请人： Esaote S.p.A.

发明人： Curletto, Simone ,  Trucco, Andrea

IPC分类号： G10K11/34

CPC分类号： G10K11/34

摘要： The invention addresses a method for optimizing transmit and receive ultrasound pulses, particularly for ultrasonic imaging, wherein transmit pulses are generated from ultrasonic pulse contributions of each of a plurality of electroacoustic transducers, which are grouped in an array and are individually energized by electric excitation signals, an excitation signal being applied to each individual transducer of the array with a predetermined delay with respect to the application of the excitation signal to the other transducers, and a weight being applied to the excitation signal of each transducer for increasing/decreasing the amplitude of the excitation signal and, as a result, of the acoustic signal generated by the transducer. The invention envisages to optimize at least the amplitude weights of the individual transducers' contributions, by defining an energy function and by minimizing it. By using stochastic or evolutionary algorithms, the minimization of the energy function provides a weight vector for the contributions of the individual transducers, which leads to transmit or receive pulses having a predetermined minimum distance from desired pulses. As described regarding transmission, optimization may be also applied to reception. Here at least the amplitude weights of receive signal contributions to the comprehensive signal are optimized. The aim is to generate and receive ultrasonic pulses which have an optimal mechanical pressure and beam pattern profile with respect to the propagation depth within the body under examination.

摘要翻译： 本发明解决了用于优化发射和接收超声脉冲，特别是用于超声成像，worin发射脉冲从每个电声换能，这是在一个数组分组的多个的超声波脉冲的贡献生成的，并且由电激励信号被单独地通电的方法 在激励信号被施加到与一个预定的延迟阵列的每一个体换能器相对于所述激发信号到另一换能器的应用，以及权重被应用到每个换能器用于增加/减少的振幅的激励信号 激励信号，并且作为结果，由换能器产生的声音信号的。 本发明设想通过定义能量函数和通过最小化它来优化至少的各个换能器的贡献的权重振幅，。 通过使用随机或进化算法中，能量函数的最小化提供对各个换能器，这导致发射或接收具有从希望的脉冲的预定的最小距离脉冲的贡献的权重向量。 如所描述的关于传输，优化可以使得施加于接收。 这里至少接收到信号的综合信号贡献的振幅权重优化。 其目的是产生和接收超声脉冲的哪个相对于被检查体内的深度传播具有最佳的机械压力和波束图案轮廓。