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    • 2. 发明授权
    • Ultrasonic doppler apparatus
    • 超声多普勒仪
    • US5062427A
    • 1991-11-05
    • US424337
    • 1989-10-19
    • Yasutsugu SeoMotoaki Sugawara
    • Yasutsugu SeoMotoaki Sugawara
    • A61B8/06G01S7/52G01S15/89
    • A61B8/463A61B8/06G01S15/8979G01S7/52071
    • An input device for specifying a first measuring point near an orifice, for example, at the valve port position of the heart on a color Doppler image and a second measuring point on the centerline of an issuing fluid is connected to a blood flow imaging device which is a color Doppler tomograph constituted by combining a sector electronic scanning type ultrasonic diagnostic device and an Doppler system to derive blood flow information and tomographic image (B mode image) information by using a single ultrasonic probe. The blood flow imaging device derives Doppler shift frequencies at the first and second measuring points and supplies the same to a flow-rate calculating circuit. The flow-rate calculating circuit derives flow velocities of the blood at the first and second measuring points and a distance between the first and second measuring points and calculates the flow-rate based on the derived flow velocities and distance. The blood flow information and tomographic image obtained by the blood flow imaging device and the calculating result of the flow-rate calculating circuit are supplied to a display control circuit via a CPU bus and displayed on an display unit under the control of the display control circuit.
    • 用于指定孔附近的例如在彩色多普勒图像上的心脏的阀口位置处的第一测量点和发出液的中心线上的第二测量点的输入装置连接到血流成像装置,该血流成像装置 是通过组合扇形电子扫描型超声波诊断装置和多普勒系统构成的彩色多普勒层析成像仪,通过使用单个超声波探头导出血流信息和断层图像(B模式图像)信息。 血流成像装置在第一和第二测量点导出多普勒频移,并将其提供给流量计算电路。 流量计算电路导出第一和第二测量点处的血液的流速以及第一和第二测量点之间的距离,并基于导出的流速和距离计算流量。 由血流成像装置获得的血流信息和断层图像以及流量计算电路的计算结果经由CPU总线提供给显示控制电路,并在显示控制电路的控制下显示在显示单元上 。
    • 3. 发明授权
    • Ultrasonic diagnostic equipment
    • 超声波诊断设备
    • US4509525A
    • 1985-04-09
    • US422174
    • 1982-09-23
    • Yasutsugu Seo
    • Yasutsugu Seo
    • A61B8/00A61B8/06A61B8/14G01S15/89A61B10/00
    • G01S15/8979A61B8/06A61B8/13G01S7/52085
    • An ultrasonic diagnostic system is disclosed, which comprises an ultrasonic transducer array having plural transducer elements for transmitting an ultrasonic beam and generating echo signals from the echos reflected from an object, a circuit for exciting the transducer elements to generate the ultrasonic beam that propagates along a predetermined scanning line on the object, and a receiver circuit for time delaying and summing the echo signals to produce a summed output signal. In order to obtain velocity information from a moving object, the equipment further comprises a phase detecting circuit for selecting a Doppler shift signal from the summed output signal to produce a phase detected signal, a digital filter circuit for removing the phase detected signal component reflected from objects moving at lower speed than a predetermined speed from the Doppler shift signal, a circuit for envelope detecting the output signal from the digital filter circuit, a circuit for brightness modulating the amplitude of the output signal from the envelope detecting circuit, and a display unit for displaying the output signal from the brightness modulating circuit as a function of time in real time.
    • 公开了一种超声波诊断系统,其包括具有多个换能器元件的超声波换能器阵列,所述多个换能器元件用于传输超声波束并从从物体反射的回波产生回波信号,用于激励换能器元件的电路,以产生沿着 物体上的预定扫描线,以及用于对回波信号进行时间延迟和求和以产生相加的输出信号的接收器电路。 为了从移动物体获取速度信息,该设备还包括相位检测电路,用于从求和的输出信号中选择多普勒频移信号以产生相位检测信号;数字滤波器电路,用于去除从 从多普勒频移信号以比预定速度低的速度移动的物体,用于包络地检测来自数字滤波器电路的输出信号的电路,用于对来自包络检测电路的输出信号的振幅进行亮度调制的电路,以及显示单元 用于实时显示来自亮度调制电路的输出信号作为时间的函数。
    • 5. 发明授权
    • Ultrasonic blood flow sensing apparatus
    • 超声波血流检测装置
    • US4501279A
    • 1985-02-26
    • US418001
    • 1982-09-14
    • Yasutsugu Seo
    • Yasutsugu Seo
    • A61B8/00A61B8/06A61B8/14G01S15/89A61B10/00
    • G01S15/8979A61B8/06A61B8/13A61B8/14A61B8/463
    • An ultrasonic Doppler blood flow sensing apparatus comprises a probe for sending an ultrasonic wave into a living body and receiving echoes, an ultrasonic diagnosing device for processing the echoes received to provide a tomogram signal, an ultrasonic Doppler blood flow meter for processing the echoes received to provide blood flow data, an electrocardiographic circuit, a gate for producing a sampling signal in response to an electrocardiographic signal from the electrocardiograph circuit, a random access memory for sampling and storing blood flow data sensed by the blood flow meter in response to the sampling signal from the gate, detectors for detecting a radius r of a blood vessel and a cosine of .theta., where .theta. is an angle of direction of an ultrasonic beam with respect to a direction of blood flow at a part of the living body to be measured on the basis of the tomogram data derived from the diagnosing device, an arithmetic logic unit for calculating an average blood flow during a most recent one minute or for one or several most recent cardiac cycles on the basis of the sampled blood flow data stored in the RAM, the detected cos .theta. from the cosine detector and the radius r of the blood vessel from the r detector, and a monitor for displaying a tomogram defined by the tomogram data from the diagnosing device and an average blood flow from the arithmetic logic unit.
    • 一种超声波多普勒血流检测装置,包括用于将超声波发送到生物体并接收回波的探针,用于处理接收到的回波以提供断层图像信号的超声波诊断装置,用于处理接收到的回波的超声波多普勒血流计 提供血流数据,心电图电路,用于响应于来自心电图仪电路的心电图信号产生采样信号的门,随机存取存储器,用于采样和存储由血液流量计响应于采样信号感测的血流数据 来自门的检测器用于检测血管的半径r和θ的余弦,其中θ是超声波束相对于待测量的生物体的一部分的血流方向的角度 来自诊断装置的断层图像数据的基础,用于计算平均血流量度量的算术逻辑单元 基于存储在RAM中的取样血流数据,来自余弦检测器的检测的cosθ和来自r检测器的血管的半径r,最近一分钟或针对一个或几个最近的心动周期,以及 用于显示由诊断装置的断层图像数据定义的断层图像和来自算术逻辑单元的平均血液流量的监视器。
    • 6. 发明授权
    • Ultrasonic imaging apparatus
    • 超声波成像装置
    • US4930514A
    • 1990-06-05
    • US228195
    • 1988-08-04
    • Tatsuro BabaRyoichi KandaYasutsugu Seo
    • Tatsuro BabaRyoichi KandaYasutsugu Seo
    • A61B8/06A61B8/14G01S7/52G01S15/89
    • G01S15/8979A61B8/06A61B8/14G01S7/52071
    • An ultrasonic imaging apparatus comprises an ultrasonic transducer for emitting ultrasonic pulses at a rate frequency fr and converting an echo wave of the ultrasonic pulses into an echo signal, an orthogonal detector circuit for orthogonally detecting an echo signal provided from the ultrasonic transducer and a calculator circuit for obtaining Doppler data from the orthogonal detection signal and providing color Doppler data. The output of the calculator circuit is coupled to an interpolator circuit. When the interpolator circuit receives color Doppler data at a frequency above +fr/2 or -fr/2 from the calculator circuit, it interpolates the Doppler data according to a predetermined argorithm for excluding interpolation data corresponding to a zero region between +fr/2 and -fr/2. The color Doppler data including interpolation data is displayed as color image on the monitor.
    • 超声波成像装置包括超声波换能器,用于以速率频率fr发射超声波脉冲,并将超声波脉冲的回波转换成回波信号;正交检波器电路,用于正交检测从超声波换能器提供的回波信号;以及计算器电路 用于从正交检测信号获得多普勒数据并提供彩色多普勒数据。 计算器电路的输出耦合到内插器电路。 当内插器电路从计算器电路接收高于+ fr / 2或-fr / 2的频率的彩色多普勒数据时,根据预定的算法内插多普勒数据,以排除对应于+ fr / 2之间的零区域的插值数据 和-fr / 2。 包括插值数据的彩色多普勒数据在显示器上显示为彩色图像。
    • 7. 发明授权
    • Ultrasonic diagnosing system
    • 超声诊断系统
    • US4896674A
    • 1990-01-30
    • US259458
    • 1988-10-11
    • Yasutsugu Seo
    • Yasutsugu Seo
    • A61B8/06A61B8/00A61B8/14G01S15/58G01S15/89
    • G01S15/8979G01S15/582
    • An ultrasound diagnosing system includes an ultrasound transmission/reception section, a cross-sectional imaging section, a phase detection section, a filter section, a calculation section, a correction section and a display section. The cross-sectional imaging section causes the ultrasound transmission/reception section to perform ultrasound scanning for sending and receiving ultrasound beams a plurality of times at an identical beam position, and detects cross-sectional information on a living subject from the echo signals. The phase detection section performs quadrature detection of the echo signals. The filter section eliminates low-frequency clutter components from two sets of detected echo components. The calculating section calculates an average blood flow speed by using the outputs of the filter section by autocorrelation. The correction section substracts the average values of the echo components from the two sets of the echo components before the calculation results are obtained, to eliminate the DC components included in the echo components. The display section superposes two-dimensional information on the average blood flow speed from the calculating section on the cross-sectional image and displays a superposed image.
    • 超声波诊断系统包括超声波发送接收部,截面摄像部,相位检测部,滤波部,计算部,校正部,显示部。 横截面成像部使超声波发送接收部在相同的波束位置进行多次发送接收超声波的超声波扫描,从回波信号检测活体的横截面信息。 相位检测部进行回波信号的正交检波。 滤波器部分消除了两组检测到的回波分量的低频杂波分量。 计算部通过自相关使用滤波部的输出来计算平均血流速度。 在获得计算结果之前,校正部分从两组回波分量的回波分量的平均值中减去,以消除包含在回波分量中的DC分量。 所述显示部将来自所述计算部的平均血流速度的二维信息叠加在所述横截面图像上,并显示叠加图像。
    • 8. 发明授权
    • Ultrasonic blood flow measuring apparatus
    • 超声波血流测量仪
    • US4416286A
    • 1983-11-22
    • US232235
    • 1981-02-06
    • Kazuhiro IinumaYasutsugu SeoShigeru Sato
    • Kazuhiro IinumaYasutsugu SeoShigeru Sato
    • A61B8/00A61B8/06A61B8/14G01F1/66G01S7/52G01S15/89A61B10/00
    • G01S15/8979A61B8/06A61B8/13G01F1/663G01S7/52073G01N2291/02836
    • An ultrasonic blood flow measuring apparatus comprising:an ultrasonic probe for transmitting an ultrasonic beam into a tissue under examination in response to an electrical driving pulse and for receiving an ultrasonic echo reflected from the tissue to convert the same into an electrical signal;a pulse generator arrangement for generating the electrical driving pulse of said probe;a detector circuit for detecting a tomogram signal from the electrical signal;a Doppler signal processing circuit for extracting Doppler frequency shift components due to velocity of a blood flow in the tissue from the electrical signal;a marker signal generator for generating marker signals indicative of a location where velocity of the blood flow is measured and a direction of the ultrasonic beam which contains the Doppler frequency shift components;an arithmetic circuit for calculating an angle .theta. defined between a direction of the blood flow and the direction of the ultrasonic beam which contains the Doppler frequency shift components;a divider circuit for obtaining the velocity of the blood flow in accordance with the Doppler frequency shift components and the angle .theta.; anda display device for displaying a tomogram of the tissue and markers in response to the tomogram signal and the marker signals, respectively.
    • 一种超声波血流测量装置,包括:超声波探头,用于响应于电驱动脉冲将超声波束发射到被检查的组织中,并且用于接收从组织反射的超声回波,将其转换为电信号; 用于产生所述探针的电驱动脉冲的脉冲发生器装置; 用于从所述电信号检测断层图像信号的检测器电路; 多普勒信号处理电路,用于从电信号中提取由组织中的血流速度引起的多普勒频移分量; 标记信号发生器,用于产生指示测量血流速度的位置的标记信号和包含多普勒频移分量的超声波束的方向; 用于计算在血流方向和包含多普勒频移分量的超声波束的方向之间限定的角度θ的算术电路; 用于根据多普勒频移分量和角度θ获得血流速度的分频器电路; 以及显示装置,用于分别响应于断层图像信号和标记信号显示组织和标记的断层图像。
    • 9. 发明申请
    • THREE-DIMENSIONAL ULTRASONIC DIAGNOSTIC APPARATUS
    • 三维超声诊断设备
    • US20090018448A1
    • 2009-01-15
    • US12171518
    • 2008-07-11
    • Yasutsugu SeoYasuo Miyajima
    • Yasutsugu SeoYasuo Miyajima
    • A61B8/13
    • A61B8/14A61B8/0883A61B8/469A61B8/483A61B8/523G01S7/52063G01S15/8979G01S15/8993
    • A three-dimensional ultrasonic diagnostic apparatus has a cross-sectional image generating unit, a region-of-interest setting unit, a three-dimensional image generating unit and a display unit. The cross-sectional image generating unit generates a cross-sectional image corresponding to a desired cross-sectional plane by performing a two-dimensionally scan on the cross-sectional plane within a three-dimensional scannable region. The region-of-interest setting unit sets a second region of interest for a three dimensional image within a three-dimensional region based upon a first region of interest in the cross-sectional image. The three-dimensional image generating unit performs a three-dimensionally scan on the three-dimensional region including the second region of interest, sets a view point based upon the second region of interest, and generates the three dimensional image, including the second region of interest, in a line of sight from the view point. The display unit displays the three-dimensional image.
    • 三维超声波诊断装置具有截面图像生成单元,感兴趣区域设定单元,三维图像生成单元和显示单元。 横截面图像生成单元通过在三维可扫描区域内的横截面上进行二维扫描,生成与期望的截面平面对应的截面图像。 感兴趣区域设置单元基于横截面图像中的第一感兴趣区域,在三维区域内为三维图像设置第二感兴趣区域。 三维图像生成单元对包括第二感兴趣区域的三维区域进行三维扫描,基于第二感兴趣区域设定视点,并生成包括第二区域的第三区域的三维图像 兴趣,从视线的视线。 显示单元显示三维图像。
    • 10. 再颁专利
    • Method and system for controlling ultrasound scanning sequence
    • 控制超声扫描序列的方法和系统
    • USRE35371E
    • 1996-11-05
    • US19654
    • 1993-02-19
    • Yasutsugu Seo
    • Yasutsugu Seo
    • A61B8/06G01S7/52G01S15/52G01S15/89
    • G01S15/8979A61B8/06A61B8/13G01S7/52071G01S7/52085G01S15/52G01S7/52034G01S7/5206
    • The sequence for a case of scanning by an ultrasound prove having a plurality of transducers, for example, m numbers, is as follows: first scan line.fwdarw.(m-l)th scan line.fwdarw.mth scan line.fwdarw.first scan line.fwdarw.second scan line.fwdarw.mth scan line.fwdarw.first scan line.fwdarw.second scan line.fwdarw.third scan line.fwdarw.first scan line.fwdarw.. . . The ultrasound probe transmits ultrasound beams to a subject and receives echo signals reflected from the subject in accordance with the above sequence. Doppler signals obtained from the echo signals are stored in a memory. When the predetermined number of Doppler signals in each line are stored in the memory, the Doppler signals in each line are read out from the memory. By such scanning sequence, a repeat frequency, i.e., a sampling frequency of Doppler signals of the ultrasound beams transmitted in the same direction, is a shorter. As a result, a low limit of measurable flow velocity is a lower, and a timing for reading out (outputting) the Doppler signals from the memory can be a constant.
    • 通过具有多个换能器(例如m个数)的超声扫描情况的顺序如下:第一扫描线→(ml)扫描线→第m扫描线→第一扫描线→ 第二扫描线 - >第m扫描线 - >第一扫描线 - >第二扫描线 - >第三扫描线 - >第一扫描线 - >。 。 。 超声波探头将超声波束发射到被摄体,并根据上述顺序接收从受检者反射的回波信号。 从回波信号获得的多普勒信号被存储在存储器中。 当每行中的预定数量的多普勒信号被存储在存储器中时,从存储器中读出每行中的多普勒信号。 通过这样的扫描顺序,重复频率,即在相同方向上发射的超声波的多普勒信号的采样频率较短。 结果,可测量流速的下限较低,并且从存储器读出(输出)多普勒信号的定时可以是常数。