公开(公告)号：EP0453251B1

公开(公告)日：1997-08-20

申请号：EP91303404.7

申请日：1991-04-17

申请人： Advanced Technology Laboratories, Inc.

发明人： Powers, Jeffry E.

IPC分类号： A61B8/08 ,  A61B17/34

CPC分类号： A61B8/0841 ,  A61B8/0833 ,  A61B17/3403 ,  A61B2017/22075 ,  A61B2017/3413 ,  A61B2090/3929

公开(公告)号：EP0754429A2

公开(公告)日：1997-01-22

申请号：EP96304209.8

申请日：1996-06-06

申请人： ADVANCED TECHNOLOGY LABORATORIES, INC.

发明人： Dunham, Paul T. ,  Brechbiel, Tracy C. ,  Zimmerman, Calvin R. ,  Oaks, Frank Bentley

IPC分类号： A61B8/12 ,  A61B1/00

CPC分类号： A61B8/12 ,  A61B1/0055 ,  A61B8/445 ,  A61B8/4461 ,  A61M25/0136

摘要： An ultrasonic endoscopic probe is provided with an articulating distal tip (14) at which an ultrasonic transducer (130) is located. The articulating section (30) of the probe can be locked in an articulated position by a lock control (28,28') located at a control section (10) of the probe. The locking force is variably selectable by the user, so that the articulating section (30) will be locked in position by a desired force. The articulating section (30) is controlled by cables (74,76,129), which include cable tension adjustments (70a,70b) that also serve to delimit the range of articulation. The articulating section (30) is formed of alternating pivot rings (120) with intervening polymeric pivot beads (106), which provide repetitively smooth articulation. The ultrasonic transducer (130) is rotatable to steer the acoustic scan plane during use, and a sliding membrane (164) between the transducer (130) and its acoustic window (162) allows the transducer (130) to rotate smoothly without sticking.

摘要翻译： 超声波内窥镜探针设置有超声波换能器（130）所位于的关节式远侧末端（14）。 探针的铰接部分（30）可以通过位于探针的控制部分（10）处的锁定控制器（28,28'）锁定在铰接位置。 锁定力由使用者可变地选择，使得铰接部分（30）将通过期望的力锁定就位。 铰接部段（30）由缆索（74,76,129）控制，缆索（74,76,129）包括也用于界定铰接范围的缆索张力调节器（70a，70b）。 铰接部段（30）由交替的枢轴环（120）形成，中间的聚合物枢转凸起（106）提供重复平滑的铰接。 超声波换能器130可旋转以在使用期间操纵声学扫描平面，并且换能器130与其声学窗口162之间的滑动膜164允许换能器130平稳地旋转而不会粘连。

公开(公告)号：EP0707219A3

公开(公告)日：1996-06-05

申请号：EP95307168.5

申请日：1995-10-11

申请人： ADVANCED TECHNOLOGY LABORATORIES, INC.

发明人： Roundhill, David N. ,  Rust, David

IPC分类号： G01S7/58 ,  G01S7/52 ,  G01S7/53

CPC分类号： G01S7/52057

摘要： An ultrasonic diagnostic imaging system is provided in which a portion of an ultrasonic image can be selected for enlarged display as a "zoom" image. When the image portion is displayed in its enlarged format, the bandwidth of a filter in the ultrasonic information path is extended to increase the information content of the image portion when displayed in its enlarged format. The bandwidth is continuously optimized to maximize information content in consideration of the characteristics of the display while preventing the generation of scintillation artifacts caused by attempts to display information of an excessive bandwidth.

公开(公告)号：EP0714036A2

公开(公告)日：1996-05-29

申请号：EP95308312.8

申请日：1995-11-21

申请人： ADVANCED TECHNOLOGY LABORATORIES, INC.

发明人： Schwartz, Gary Allen ,  Pesque, Patrick René ,  Quistgaard, Jens Ulrich

IPC分类号： G01S15/89 ,  G01S7/52

CPC分类号： G01S7/52077 ,  A61B8/14 ,  A61B8/483 ,  G01S15/8945 ,  G01S15/8979 ,  G01S15/8993 ,  Y10S128/916

摘要： An ultrasonic diagnostic system and scanning technique are described for producing three dimensional ultrasonic image displays utilizing power Doppler signal information. In a preferred embodiment the power Doppler signal information is displayed in the absence of structural (B mode) information to reduce image clutter and provide three dimensional image segmentation. An ultrasonic scanning technique is presented for acquiring diagnostic three dimensional ultrasonic images of power Doppler intensity through manual hand scanning of a patient, without the need for specially fabricated scanning mechanisms or devices.

摘要翻译： 用于制造身体内部的三维超声波图像的方法包括在身体内部的体积区域上传输超声波，从该区域内的空间位置接收超声波多普勒信息信号，并处理超声波多普勒信息信号，以确定 从该地区内的地点收到的多普勒功率强度。 在三维显示中，空间基础上显示多普勒功率强度。 该处理涉及处理超声多普勒信息信号以确定从区域内的位置接收的最大多普勒功率强度。 该显示包括在三维显示中以空间为基础显示位置的最大多普勒功率强度。

公开(公告)号：EP0713680A2

公开(公告)日：1996-05-29

申请号：EP95308391.2

申请日：1995-11-22

申请人： ADVANCED TECHNOLOGY LABORATORIES, INC.

发明人： Johnson, Keith W. ,  Powers, Jeffry E.

IPC分类号： A61B8/00

CPC分类号： A61B8/481 ,  G01S7/52041 ,  G01S7/52049

摘要： An ultrasonic diagnostic system is provided which detects the presence of coated microbubble contrast agents in the body of a patient by transmitting ultrasonic energy which causes the destruction of the coated microbubbles and detects the microbubble destruction through phase insensitive detection and differentiation of echoes received from two consecutive ultrasonic transmissions. The destruction of a microbubble can also be used as a point source of acoustic energy for aberration correction, whereby the timing of the beamformer is adjusted from an analysis of beamformer signals resulting from a detected microbubble destruction event.

摘要翻译： 用于通过超声波询问来检测患者体内涂覆的微泡造影剂的存在的方法包括以足以引起涂覆的微气泡的破坏的能量水平将超声波脉冲传输到患者体内。 接收每个脉冲传输后返回的信号，并通过相位不敏感检测进行检测。 在两个脉冲传输之后接收到的检测信号在空间上是有区别的，并且超过预定阈值的信号差异被识别为由微泡破坏事件导致的。 差异化包括从在较早的脉冲传输之后在空间基础上接收的信号中减去稍后脉冲传输之后接收的信号，并且从被询问的场中的相同位置接收每个相减对的信号。

公开(公告)号：EP0689187A1

公开(公告)日：1995-12-27

申请号：EP95304427.8

申请日：1995-06-23

申请人： ADVANCED TECHNOLOGY LABORATORIES, INC.

发明人： Souquet, Jacques

IPC分类号： G10K11/32 ,  B06B1/06

CPC分类号： G10K11/32 ,  B06B1/0622

摘要： An ultrasonic diagnostic transducer array (16) is provided for providing electronic focusing in the longitudinal plane (L) and elevational (E) focusing. Elements (e₁,e₂...) of the array (16) are subdiced in the elevational direction (E) to provide subelements (1-2,2-2,3-2...) with aspect ratios varying in proportion to their distance to the central longitudinal axis of the array. Such variation affords varying electro-mechanical coupling coefficients to the subelements such that the intensity of the transmitted energy is centered about the central longitudinal axis. In a second embodiment (not represented) elements exhibit extensions in the elevational direction which vary in proportion to their displacement from the longitudinal center of the array. The extended elements are acoustically separated into subelements in the elevational direction to provide elevational focusing or spatial compounding of the transmitted acoustic energy.

摘要翻译： 提供了一种用于在纵向平面（L）和高（E）聚焦中提供电子聚焦的超声诊断换能器阵列（16）。 阵列（16）的元素（e1，e2 ...）在高度方向（E）处被细分，以提供子元素（1-2,2-2,3-2 ...），其宽高比与 它们到阵列的中心纵轴的距离。 这种变化为子元件提供变化的机电耦合系数，使得透射能量的强度围绕中心纵向轴线居中。 在第二实施例（未示出）中，元件在高度方向表现出与其从阵列的纵向中心的位移成比例地变化的延伸。 扩展元件在高度方向上声学地分离为子元件，以提供透射声能的高度聚焦或空间复合。

公开(公告)号：EP0661554A1

公开(公告)日：1995-07-05

申请号：EP94309910.1

申请日：1994-12-29

申请人： ADVANCED TECHNOLOGY LABORATORIES, INC.

发明人： Robinson, Brent Stephen ,  Cooley, Clifford R. ,  Hwang, Juin-Jet ,  Entrekin, Robert R.

IPC分类号： G01S7/52

CPC分类号： G01S7/52085 ,  G01S7/52044 ,  G01S7/52077 ,  G01S15/8977

摘要： An ultrasonic diagnostic imaging system is provided which scans an image region to receive a plurality of spatially arranged lines of ultrasonic image information signals. These ultrasonic line information signals are used in an interpolater to interpolate one or more lines which are spatially interlineated between each pair of spatially adjoining received lines. These interpolated lines are produced using either the received RF or demodulated IF ultrasonic image information signals. The interpolated lines are produced prior to scan conversion, and preferably prior to nonlinear processing such as detection or log compression to reduce spatial aliasing artifacts. In one preferred embodiment the interpolater comprises a transversal filter of four taps which is responsive to received line information signals from a common range or depth. In a second embodiment the interpolater is adaptively responsive to motion to select samples for interpolation which would be spatially at the same range in the absence of motional effects.

摘要翻译： 超声波诊断成像系统扫描图像区域以接收多个空间排列的超声波图像信息信号线。 在内插器中使用超声线信息信号来插入在每对空间相邻的接收线之间在空间上相互交错的一条或多条线。 使用所接收的RF或解调的IF超声波图像信息信号产生插入的线。 在扫描转换之前，优选地在非线性处理之前，例如检测或对数压缩之前产生插入的线，以减少空间混叠伪像。 预插入器包括四个抽头的横向滤波器，其响应于来自公共范围或深度的接收线路信息信号，或者内插器可以自适应地响应运动以选择样本进行插值，空间上将在不存在 运动效应。

公开(公告)号：EP0650036A2

公开(公告)日：1995-04-26

申请号：EP94307502.8

申请日：1994-10-13

申请人： ADVANCED TECHNOLOGY LABORATORIES, INC.

发明人： Powers, Jeffry E. ,  Loupas, Thanasis

IPC分类号： G01F1/66 ,  G01S15/89 ,  G01S15/58 ,  A61B8/06

CPC分类号： G01S15/8979 ,  G01S7/52034 ,  G01S7/52071 ,  G01S15/52 ,  G01S15/582

摘要： A velocity estimation technique is provided for a pulse-echo ultrasonic diagnostic system in which a two dimensional array of samples is acquired from a sample volume. The two dimensions of the array are depth, in which echo signal samples are acquired in response to transmission of a pulse to the sample volume, and pulse time, in which samples are acquired in response to transmission of the pulses in the pulse ensemble to the sample volume. Two autocorrelation calculations are performed on the array, one in the depth dimension and another in the pulse time dimension to yield two correlation functions, the first related to echo frequency and the second related to the Doppler frequency. The two correlation functions are then employed in a Doppler velocity estimation to determine the velocity of motion at the sample volume. The technique utilizes the full information content present in the bandwidth of the received echo signals, thereby overcoming inaccuracies due to depth dependent frequency decline or coherent signal cancellation. Since accuracy is premised upon the number of samples in the array and not its size in a particular dimension, performance can be tailored to favor frame rate or axial resolution while maintaining the accuracy of velocity estimation.

公开(公告)号：EP0627635A3

公开(公告)日：1994-12-28

申请号：EP94202297.1

申请日：1991-07-18

申请人： ADVANCED TECHNOLOGY LABORATORIES, INC.

发明人： Daigle, Ronald E.

IPC分类号： G01S15/89 ,  G01S7/52 ,  G10K11/34

CPC分类号： G01S7/52085 ,  G01S7/52063 ,  G01S15/8918 ,  G10K11/345

摘要： An ultrasonic diagnostic imaging system is provided for scanning with a linear transducer array and displaying an image area which is truncated with respect to a conventional triangular image sector to take the form of a trapezoid. Uniformity of image resolution and ease of signal processing enhancement is provided by transmitting adjacent ultrasonic beams at equal angular increments over the sector area. The ultrasonic beams transmitted are focused around predetermined transmit focal points and the transmit aperture employed for each transmission is determined by a transducer sensitivity criterion applied to the focal point. Means are provided for delaying signal components received from the beam directions so that the sum of the components will form a coherent echo signal. Means are provided for dynamically focusing received signal components by dynamically varying the sampling frequencies of laterally disposed signal components, and the receive aperture is dynamically varied in correspondence with the number of array elements which satisfy a sensitivity criterion at different depths of field.

公开(公告)号：EP0573249A1

公开(公告)日：1993-12-08

申请号：EP93304234.3

申请日：1993-06-01

申请人： ADVANCED TECHNOLOGY LABORATORIES, INC.

发明人： Routh, Helen Frances ,  Peterson, Roy Beck ,  Powrie, Charles Wesley, Jr.

IPC分类号： G01S7/52 ,  G01S15/50

CPC分类号： G01S15/58 ,  G01S7/52071

摘要： A technique for continuously determining and displaying the peak and mean velocities of spectral Doppler information is disclosed. Received spectral Doppler data is examined over a predetermined period to determine the signal to noise ratio of the Doppler signals. Individual instantaneous measurements, or lines, of Doppler spectral information are analyzed in the power versus frequency domain to compare the line information against a noise threshold determined by the signal to noise ratio. The maximum frequency signal component is thereby identified as the peak velocity of the spectral line. Mean velocity is calculated as an intensity weighted mean about the maximum power frequency of the line data. The identified peak and mean velocities are displayed in contrasting colors or shades on a continuously updated and displayed flow velocity versus time spectral display.

摘要翻译： 公开了一种用于连续地确定和显示频谱多普勒信息的峰值和平均速度的技术。 在预定时间段内检查接收到的频谱多普勒数据，以确定多普勒信号的信噪比。 在功率对频域中分析多普勒频谱信息的单个瞬时测量或线，以将线信息与由信噪比确定的噪声阈值进行比较。 因此，最大频率信号分量被识别为谱线的峰值速度。 平均速度被计算为关于线数据的最大功率频率的强度加权平均值。 识别的峰值和平均速度以对比色或阴影显示在连续更新和显示的流速对时间光谱显示上。