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公开(公告)号：US5269308A
公开(公告)日：1993-12-14
申请号：US912752
申请日：1992-07-13
IPC分类号： A61B8/06
CPC分类号： A61B8/06 , G01S15/8981
摘要： Disclosed is an ultrasonic Doppler imaging apparatus in which the velocity of a blood flow in a living body can be computed with high precision without increasing a scale of a signal processing circuit, so that a Doppler color image having satisfactory image quality is displayed. In the apparatus, an ultrasonic pulse signal is transmitted into the living body and is reflected from a target in the living body to be received by an ultrasonic probe, and the reception signal is subjected to quadrature phase detection to obtain an I signal and a Q signal. When an amplitude evaluating unit evaluates on the basis of the intensity of the I and Q signals that the reception signal contains many clutter components, a cut-off frequency of high-pass filters is increased by the application of a control signal (A) to thereby eliminate low-frequency clutter components. The outputs of the high-pass filters are converted into blood flow velocity information to be displayed as a Doppler color image.
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公开(公告)号：US5419333A
公开(公告)日：1995-05-30
申请号：US202471
申请日：1994-02-28
CPC分类号： A61B8/06 , G01S15/8981
摘要： An ultrasonic Doppler blood flow meter apparatus includes a wall filter for eliminating clutter from an echo signal of an ultrasonic pulse signal sent to a living being under test. The wall filter includes a switch for cutting a part of input data and a control unit for controlling the switch such that the switch is opened during a period in which first m data (where m is integer) is inputted to undergo filtering by the wall filter while the switch is closed during a period in which data following the (m+1)-th data inclusive thereof are inputted.
摘要翻译： 一种超声波多普勒血流计装置，包括：壁滤波器，用于消除发送给被测生物的超声波脉冲信号的回波信号的杂波。 壁滤器包括用于切割输入数据的一部分的开关和用于控制开关的控制单元，使得在输入第一m个数据（其中m是整数）的时段期间开关被打开以经过壁滤器 同时在其中输入了包括第（m + 1）个数据之后的数据的时段期间关闭开关。
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公开(公告)号：US5263483A
公开(公告)日：1993-11-23
申请号：US977185
申请日：1992-11-16
CPC分类号： G10K11/345 , G01S15/52 , G01S15/8979
摘要： A beam former for a ultrasonic diagnostic apparatus is arranged to have low-bit analog-to-digital converters and enables to obtain an excellent echo signal from blood flow. The beam former further includes a sample and hold circuit for sampling an echo signal of a pulse reflected from the inside of a human body. A delaying circuit serves to delay the output of the sample and hold circuit by a delay time corresponding to an integer multiple of a transmitted pulse period and is subtracted from the output of the sample and hold circuit. The subtracted output is analog-to-digital converted and is stored in a memory. The memory reads out the data asynchronously with the storage. The delaying circuit is composed of an analog-to-digital converter, a memory and a digital-to-analog converter and has a delay time corresponding to an integer multiple of the transmitted pulse period.
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公开(公告)号：US06364836B1
公开(公告)日：2002-04-02
申请号：US09634857
申请日：2000-08-08
IPC分类号： A61B800
CPC分类号： G01S7/52066 , G01S7/52046 , G01S15/8979 , G10K11/346
摘要： An ultrasound diagnostic apparatus includes a probe which outputs RF signals. There are N phase detectors for converting the RF signals outputted from the probe into baseband signals In and Qn, where “N” denotes a first predetermined natural number and “n” denotes a second predetermined natural number set as 2≦n≦N. A reception beam former operates for processing the baseband signals In and Qn into a time-division-multiplexed signal. The reception beam former includes a device for multiplying the baseband signals In and Qn by phase shift data to generate multiplication-resultant signals, a device for delaying the multiplication-resultant signals to generate delay-resultant signals, and a device for combining the delay-resultant signals into the time-division-multiplexed signal.
摘要翻译： 超声波诊断装置包括输出RF信号的探针。 存在用于将从探测器输出的RF信号转换为基带信号In和Qn的N相检测器，其中“N”表示第一预定自然数，“n”表示设置为2 <= n
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公开(公告)号：US5311870A
公开(公告)日：1994-05-17
申请号：US878623
申请日：1992-05-05
CPC分类号： G01S15/582 , G01S15/8979 , H03D3/007 , H03D2200/005 , H03D2200/0062
摘要： An ultrasonic Doppler imaging apparatus emits ultrasonic pulse waves to an object body under test and provides information on blood flow in the body based on Doppler shifts of ultrasonic waves reflected back from the object body. The ultrasonic pulse waves emitted by a probe to the object body undergo Doppler shifts by being reflected by the blood stream, and the reflected ultrasonic waves received by the probe are decomposed with an A/D converter in synchronism with emission. The decomposed data are transformed into complex Doppler data through a quadrature addition/subtraction by quadrature addition/subtraction means. The complex Doppler data is subjected to frequency analysis through correlative computation or the like, and resulting data is stored in a frame memory and displayed. The apparatus is capable of measuring the Doppler shift frequency accurately.
摘要翻译： 超声波多普勒成像装置向被检测物体发射超声波脉冲波，并且基于从物体反射回来的超声波的多普勒频移，提供关于体内血流量的信息。 由探针发射到物体的超声脉冲波被血流反射而进行多普勒频移，并且由A / D转换器与发射同步地将由探头接收的反射的超声波分解。 分解的数据通过正交加法/减法装置的正交加减法变换为复数多普勒数据。 通过相关计算等对复数多普勒数据进行频率分析，将结果数据存储在帧存储器中并进行显示。 该装置能够准确地测量多普勒频移频率。
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公开(公告)号：US5419330A
公开(公告)日：1995-05-30
申请号：US294013
申请日：1994-08-23
CPC分类号： G01S15/8997 , G01S7/52046 , G10K11/348 , G01S15/8915
摘要： In an ultrasonic diagnostic equipment for performing synthetic aperture, deterioration of picture quality produced by the movement of an object is prevented, thereby to provide an excellent image. Arrayed piezoelectric transducers are driven by a transmitting circuit so as to transmit ultrasonic waves into a body, and, among echoes received by piezoelectric transducers, first the signals of the piezoelectric transducers are selected by amplified appropriately by amplifiers and converted into digital signals by added with delay by a beam former thereafter, and stored in a memory. Similarly, the ultrasonic waves are transmitted again, signals of the piezoelectric transducers are selected by the applied with similar signal processing in the amplifiers, and the beam former, and added to signals added with delay of the piezoelectric transducers T3 to T6 stored in a memory 16 by an adder. The added signals are displayed on a display unit after applying signal processing such as detection in a signal processing portion.
摘要翻译： 在用于执行合成孔径的超声波诊断设备中，防止了由物体的运动产生的图像质量的劣化，从而提供优异的图像。 阵列压电换能器由发射电路驱动，以将超声波发射到体内，并且在由压电换能器接收的回波中，首先通过放大器适当放大来选择压电换能器的信号，并通过加入被转换成数字信号 之后由波束形成器延迟并存储在存储器中。 类似地，再次传输超声波，通过在放大器和波束形成器中应用类似的信号处理来选择压电换能器的信号，并将其加到存储在存储器中的压电换能器T3至T6的延迟信号 16由加法器。 在信号处理部分中应用诸如检测的信号处理之后，在显示单元上显示附加的信号。
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公开(公告)号：US20060173325A1
公开(公告)日：2006-08-03
申请号：US10546847
申请日：2004-02-27
申请人： Morio Nishigaki , Hisashi Hagiwara
发明人： Morio Nishigaki , Hisashi Hagiwara
IPC分类号： A61B8/14
CPC分类号： A61B8/461 , A61B8/0866 , G01S7/52074
摘要： There is provided an ultrasonic image displaying system capable of displaying an image of a fetus that is easy for a subject to understand without requiring a complicated operation by an operator. The ultrasonic image displaying system is provided with a display unit 104 for displaying an image of a fetus, a part data recording part 106 for recording part images, and a synthesis unit 103 for adding a part image read from the part data recording part 106 to a region designated by the operator on the image of the fetus displayed on the display unit 104.
摘要翻译： 提供了一种超声波图像显示系统，其能够显示对于受试者而言容易理解的胎儿的图像，而不需要操作者的复杂操作。 该超声波图像显示系统设置有用于显示胎儿的图像的显示单元104，用于记录部分图像的部件数据记录部分106，以及用于将从部件数据记录部分106读取的部位图像相加的合成单元103 由操作者对显示在显示单元104上的胎儿的图像指定的区域。
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公开(公告)号：US20090209861A1
公开(公告)日：2009-08-20
申请号：US11884440
申请日：2006-02-16
IPC分类号： A61B8/06
CPC分类号： G01S15/8981 , A61B8/06 , G01S15/8988
摘要： An ultrasonic Doppler blood flow meter has a clutter component estimation unit 110 for estimating amplitude, initial phase, and phase velocity of the clutter component using an output from the phase detector 104 to reduce a transient phenomenon. Using the estimated data, initial values of the wall filter 105 are generated by the initial filter value generating unit 11 and then provided to the wall filter for the filtering process.
摘要翻译： 超声波多普勒血流计具有杂波分量估计单元110，用于使用来自相位检测器104的输出来估计杂波分量的振幅，初始相位和相位速度，以减少瞬态现象。 使用估计数据，由初始过滤器值生成单元11生成壁过滤器105的初始值，然后将其提供给用于过滤处理的壁过滤器。
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9.发明授权System for accurately obtaining a contour and/or quantitative information from an echo image with reduced manual operation 失效用于通过减少手动操作从回波图像精确获得轮廓和/或定量信息的系统公开(公告)号：US06839456B2
公开(公告)日：2005-01-04
申请号：US10454638
申请日：2003-06-05
IPC分类号： A61B8/00 , A61B8/08 , G01S7/539 , G06T1/00 , G06T5/00 , G06K9/00 , G06K9/40 , G06K9/46 , G06K9/52
CPC分类号： G06T7/0012 , A61B8/08 , G01S7/539 , G06T7/12 , G06T2207/10081 , G06T2207/10132 , G06T2207/20101 , G06T2207/30004 , Y10S128/915
摘要： A system for analyzing an echo image containing a contour of an organ with reduced manual operation is provided. The echo image is first obtained. A user manually sets, say, four points as known or initial points such that two of the known points provide a width of the contour and the other two of the known points provide a height of the contour. A search region including a connecting line segment connecting each pair of adjacent ones of the known points is set on the contour. A search line segment that originates from a point bisecting the connecting line segment of the search region and reaches an end of the search region is set. Each search line segment is sought for a contour point constituting the contour. A contour is formed by connecting the contour points on the search line segments. Three points may be set as the initial points such that two of the initial points provide a width of the contour and the other one is on top of the contour.
摘要翻译： 提供了一种用于分析包含具有减少的手动操作的器官的轮廓的回波图像的系统。 首先获得回波图像。 用户手动地将四个点作为已知或初始点设置，使得两个已知点提供轮廓的宽度，并且另外两个已知点提供轮廓的高度。 在轮廓上设置包括连接每对相邻的已知点的连接线段的搜索区域。 设置从搜索区域的连接线段到达搜索区域的末端的点起始的搜索线段。 寻找构成轮廓的轮廓点的每个搜索线段。 通过连接搜索线段上的轮廓点形成轮廓。 可以将三个点设置为初始点，使得两个初始点提供轮廓的宽度，而另一个位于轮廓的顶部。
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10.发明授权System for accurately obtaining a contour and/or quantitative information from an echo image with reduced manual operation 失效用于通过减少手动操作从回波图像精确获得轮廓和/或定量信息的系统公开(公告)号：US06687392B1
公开(公告)日：2004-02-03
申请号：US09408101
申请日：1999-09-29
IPC分类号： G06K900
CPC分类号： G06T7/0012 , A61B8/08 , G01S7/539 , G06T7/12 , G06T2207/10081 , G06T2207/10132 , G06T2207/20101 , G06T2207/30004 , Y10S128/915
摘要： A system for analyzing an echo image containing a contour of an organ with reduced manual operation is provided. The echo image is first obtained. A user manually sets, say, four points as known or initial points such that two of the known points provide a width of the contour and the other two of the known points provide a height of the contour. A search region including a connecting line segment connecting each pair of adjacent ones of the known points is set on the contour. A search line segment that originates from a point bisecting the connecting line segment of the search region and reaches an end of the search region is set. Each search line segment is sought for a contour point constituting the contour. A contour is formed by connecting the contour points on the search line segments. Three points may be set as the initial points such that two of the initial points provide a width of the contour and the other one is on top of the contour.
摘要翻译： 提供了一种用于分析包含具有减少的手动操作的器官的轮廓的回波图像的系统。 首先获得回波图像。 用户手动地将四个点作为已知或初始点设置，使得两个已知点提供轮廓的宽度，并且另外两个已知点提供轮廓的高度。 在轮廓上设置包括连接每对相邻的已知点的连接线段的搜索区域。 设置从搜索区域的连接线段到达搜索区域的末端的点起始的搜索线段。 寻找构成轮廓的轮廓点的每个搜索线段。 通过连接搜索线段上的轮廓点形成轮廓。 可以将三个点设置为初始点，使得两个初始点提供轮廓的宽度，而另一个位于轮廓的顶部。
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