Ultrasound color flow imaging at high frame rates
    1.
    发明申请
    Ultrasound color flow imaging at high frame rates 有权
    超声波彩色流量成像在高帧速率

    公开(公告)号:US20070078347A1

    公开(公告)日:2007-04-05

    申请号:US11242162

    申请日:2005-09-30

    IPC分类号: A61B8/14

    摘要: A method is provided to improve the frame-rate in color-flow ultrasound imaging using simultaneous spatially-distinct transmit beams with one or more frequency bands per transmit beam. Pulses of different center frequencies are used simultaneously in different (lateral and/or elevational) directions, thereby reducing the scanning time and improving the frame-rates. Optionally, a multi-modal pulse is used, and flow is estimated separately for the different frequencies. The flow estimates for these pulses are appropriately combined to improve low-velocity sensitivity and to reduce aliasing. A flow sample count with two or more different pulse repetition intervals can be used to further improve low-flow sensitivity and minimize aliasing.

    摘要翻译: 提供了一种用于使用每个发射波束具有一个或多个频带的同时空间不同的发射波束来改善彩色流超声成像中的帧频的方法。 不同中心频率的脉冲同时在不同(横向和/或正向)方向使用,从而减少扫描时间并提高帧速率。 可选地,使用多模式脉冲,并且针对不同频率分别估计流量。 适当地组合这些脉冲的流量估计以改善低速灵敏度并减少混叠。 可以使用具有两个或多个不同脉冲重复间隔的流量样本计数来进一步改善低流量灵敏度并最小化混叠。

    Automatic velocity scale identification for medical diagnostic ultrasound
    2.
    发明申请
    Automatic velocity scale identification for medical diagnostic ultrasound 有权
    医用诊断超声波自动速度刻度识别

    公开(公告)号:US20070038083A1

    公开(公告)日:2007-02-15

    申请号:US11202676

    申请日:2005-08-12

    IPC分类号: A61B8/00

    摘要: Velocity scale is automatically determined for ultrasound imaging. Receive signals corresponding to different pulse repetition intervals are used to estimate velocities. The different velocities are used to determine the velocity scale. For example, the different pulse repetition intervals are obtained by selecting different sets of signals from a group of signals for a scan line. As another example, the different pulse repetition intervals are obtained by transmitting for a scan line with changing, such as increasing, pulse repetition intervals. The lower pulse repetition interval of a pair of intervals associated with a sign change in the phase is used for the velocity scale. In yet another example, at least two demodulation frequencies are used for a broadband transmit in at least two sets, each set with a different pulse repetition interval. Velocities are estimated for a greater number of pulse repetition intervals than transmitted using the broadband pulses.

    摘要翻译: 自动确定超声波成像的速度刻度。 接收与不同脉冲重复间隔对应的信号用于估算速度。 不同的速度用于确定速度刻度。 例如,通过从扫描线的一组信号中选择不同的信号组来获得不同的脉冲重复间隔。 作为另一示例,通过用改变的脉冲重复间隔等增加扫描线来发送不同的脉冲重复间隔。 与相位中的符号变化相关联的一对间隔的较低脉冲重复间隔用于速度刻度。 在另一个示例中,至少两个解调频率用于至少两组中的宽带传输,每组具有不同的脉冲重复间隔。 对于使用宽带脉冲传输的脉冲重复间隔的数量,估计速度。

    Adaptive volume rendering for ultrasound color flow diagnostic imaging
    3.
    发明授权
    Adaptive volume rendering for ultrasound color flow diagnostic imaging 有权
    超声彩色流量诊断成像的自适应体绘制

    公开(公告)号:US08425422B2

    公开(公告)日:2013-04-23

    申请号:US12433649

    申请日:2009-04-30

    IPC分类号: A61B5/00

    CPC分类号: A61B8/00 A61B8/461 A61B8/466

    摘要: Adaptive volume rendering is provided for medical diagnostic ultrasound. The opacity of B-mode data is set relative to the opacity of Doppler data. The opacities for the different types of data are set as a function of ray depth. For example, the opacity of B-mode data near a tissue border is set to be more opaque than for tissue away from the border, and the opacity for flow data near a flow border is set to be less opaque than for flow away from the border. An image is rendered using a rendering parameter set as a function of ray depth, B-mode information and Doppler information. Other processes for enhancing and/or using rendering may be used.

    摘要翻译: 为医疗诊断超声提供自适应体绘制。 B模式数据的不透明度相对于多普勒数据的不透明度设置。 不同类型数据的不透明度被设置为光线深度的函数。 例如,组织边界附近的B模式数据的不透明度被设置为比离开边界的组织更不透明,并且流动边界附近的流动数据的不透明度被设置为比离开 边境。 使用作为射线深度,B模式信息和多普勒信息的函数的渲染参数来渲染图像。 可以使用用于增强和/或使用渲染的其它过程。

    Adaptive motion imaging in medical diagnostic ultrasound imaging
    4.
    发明授权
    Adaptive motion imaging in medical diagnostic ultrasound imaging 有权
    医学诊断超声成像中的自适应运动成像

    公开(公告)号:US08098910B2

    公开(公告)日:2012-01-17

    申请号:US11900624

    申请日:2007-09-11

    IPC分类号: G06K9/00 A61B8/00

    摘要: Motion imaging in medical diagnostic ultrasound is adaptive. Clutter or threshold processing adapts as a function of data for different locations or for different times. Spatial filtering adapts as a function of data at different spatial locations at a same time. The steering angle may be set as a function of region based on the vessel orientation and maximum velocity. The region of interest for motion imaging may be expanded to counteract, at least in part, a shift due to the steering angle.

    摘要翻译: 医学诊断超声中的运动成像是适应性的。 杂波或阈值处理适应不同位置或不同时间的数据的功能。 空间滤波同时适应不同空间位置的数据的函数。 转向角可以根据容器取向和最大速度来设定为区域的函数。 用于运动成像的感兴趣区域可以被扩展以至少部分地由于转向角而抵消移位。

    Filament forming apparatus and a cooling apparatus for and method of cooling a filament forming area
    5.
    发明授权
    Filament forming apparatus and a cooling apparatus for and method of cooling a filament forming area 失效
    长丝成形装置和用于冷却丝条形成区域的冷却装置和方法

    公开(公告)号:US06192714B1

    公开(公告)日:2001-02-27

    申请号:US09386817

    申请日:1999-08-31

    IPC分类号: C03B3702

    摘要: A filament forming apparatus and cooling apparatus for and method of cooling a filament forming area beneath a bushing is disclosed. The cooling apparatus includes a manifold with a cooling fluid channel formed therein, and a plurality of hollow cooling fins operatively coupled to the manifold. A cooling fluid flows into the manifold, through first and second fluid flow channels in the cooling fins, and back into the manifold from which it is subsequently discharged. Each cooling fin includes a plurality of divider members between the first and second fluid flow channels. Adjacent divider members define a small channel between each other. The cooling fluid flows from the first fluid flow channel through the small channels to the second fluid flow channel. The overall heat transfer coefficient is increased due to the forced convection of the surfaces of the cooling fin using a single-phase fluid passing through the cross-sectional area of a small channel. Further, divider members increase the surface area contact between the cooling fluid flow and the cooling fin walls. The cooling fluid in the fin may absorb enough heat to achieve two phase, liquid and vapor, flow. The bottom wall and/or side walls of the fin includes a plurality of holes through which the liquid and/or vapor in the fin may spray into the filament forming area. This spray enhances the cooling and quenching of the glass filaments in the filament forming area.

    摘要翻译: 公开了一种用于冷却套管下方的细丝形成区域的丝线形成装置和冷却装置和冷却方法。 冷却装置包括其中形成有冷却流体通道的歧管和可操作地联接到歧管的多个空心冷却翅片。 冷却流体通过冷却翅片中的第一和第二流体流动通道流入歧管,并且返回到随后排放的歧管中。 每个冷却翅片包括在第一和第二流体流动通道之间的多个分隔件。 相邻的分隔构件在彼此之间限定一个小通道。 冷却流体从第一流体流动通道通过小通道流到第二流体流动通道。 使用通过小通道的横截面积的单相流体,由于冷却翅片的表面的强制对流,总传热系数增加。 此外,分隔件增加了冷却流体流与冷却翅片壁之间的表面积接触。 翅片中的冷却流体可以吸收足够的热量以实现两相,液体和蒸气流。 翅片的底壁和/或侧壁包括多个孔,翅片中的液体和/或蒸汽可以通过多个孔喷射到细丝形成区域中。 该喷雾增强了灯丝形成区域中的玻璃丝的冷却和淬火。

    Apparatus for producing continuous glass filaments
    6.
    发明授权
    Apparatus for producing continuous glass filaments 失效
    用于生产连续玻璃丝的装置

    公开(公告)号:US5846285A

    公开(公告)日:1998-12-08

    申请号:US599693

    申请日:1996-02-12

    摘要: An apparatus is provided for producing continuous glass filaments. The apparatus comprises a feeder (20) for supplying streams of molten glass to be drawn into continuous filaments, a drawing device (40) adapted to draw the streams into the filaments, and heat removal apparatus (50) located adjacent to the feeder for transferring energy in the form of heat away from a filament forming area adjacent to the feeder. The heat removal apparatus includes first and second manifolds (52a, 54) through which a cooling fluid circulates, a plurality of fins (56) having first and second ends (56a and 56b) and interface material (58). The first ends of the fins are associated with the first manifold and the second ends are positioned adjacent to the second manifold. The first ends may be fixedly connected to the first manifold. The interface material is interposed between the second manifold and the second ends to provide a path for energy in the form of heat to flow from the fins to the second manifold.

    摘要翻译: 提供一种用于生产连续玻璃丝的装置。 该设备包括用于供应要拉制成连续长丝的熔融玻璃流的供料器(20),适于将料流引入长丝中的拉丝装置(40),以及与进料器相邻的除热装置(50) 来自与供料器相邻的丝条形成区域的热量的能量。 除热装置包括冷却流体循环通过的第一和第二歧管(52a,54),具有第一和第二端(56a和56b)和界面材料(58)的多个翅片(56)。 翅片的第一端与第一歧管相关联,并且第二端定位成与第二歧管相邻。 第一端可以固定地连接到第一歧管。 界面材料介于第二歧管和第二端之间,以提供热量能量从翅片流到第二歧管的路径。

    Adaptive motion imaging in medical diagnostic ultrasound imaging
    8.
    发明申请
    Adaptive motion imaging in medical diagnostic ultrasound imaging 有权
    医学诊断超声成像中的自适应运动成像

    公开(公告)号:US20090069675A1

    公开(公告)日:2009-03-12

    申请号:US11900624

    申请日:2007-09-11

    IPC分类号: A61B8/00

    摘要: Motion imaging in medical diagnostic ultrasound is adaptive. Clutter or threshold processing adapts as a function of data for different locations or for different times. Spatial filtering adapts as a function of data at different spatial locations at a same time. The steering angle may be set as a function of region based on the vessel orientation and maximum velocity. The region of interest for motion imaging may be expanded to counteract, at least in part, a shift due to the steering angle.

    摘要翻译: 医学诊断超声中的运动成像是适应性的。 杂波或阈值处理适应不同位置或不同时间的数据的功能。 空间滤波同时适应不同空间位置的数据的函数。 转向角可以根据容器取向和最大速度来设定为区域的函数。 用于运动成像的感兴趣区域可以被扩展以至少部分地由于转向角而抵消移位。

    Ultrasound diagnostic flow imaging with coded excitation
    9.
    发明申请
    Ultrasound diagnostic flow imaging with coded excitation 有权
    超声诊断流程成像与编码激励

    公开(公告)号:US20070038108A1

    公开(公告)日:2007-02-15

    申请号:US11303622

    申请日:2005-12-15

    IPC分类号: A61B8/00

    摘要: Diagnostic ultrasound flow imaging is performed with coded excitation pulses. Due to the use of frequency coded excitation pulses, flow information may suffer from spatial misregistration and estimate errors. Spatial position shift in flow data is offset for alignment with B-mode or other imaging. The flow estimates are compensated for the imaging center frequency variation with depth. The wide bandwidth information available due to coded excitation may allow anti-aliasing by estimating velocities from two frequency bands.

    摘要翻译: 用编码的激发脉冲进行诊断超声波成像。 由于使用频率编码的激励脉冲,流量信息可能会受到空间重合失调和估计误差的困扰。 流量数据中的空间位置偏移偏移以与B模式或其他成像对齐。 影像中心频率随深度的变化而补偿流量估计值。 由于编码激励可用的宽带宽信息可以通过估计来自两个频带的速度来允许抗混叠。

    Method and apparatus for feature tracking strain estimation for elastography
    10.
    发明授权
    Method and apparatus for feature tracking strain estimation for elastography 失效
    用于弹性成像的特征跟踪应变估计的方法和装置

    公开(公告)号:US06687625B2

    公开(公告)日:2004-02-03

    申请号:US10127224

    申请日:2002-04-22

    IPC分类号: G01L300

    CPC分类号: G01L1/255

    摘要: The present invention is directed toward an apparatus and method for determining localized strain in a target body by identifying sets of features in reflected echo sequences and by comparing sets of features to determine time shift values between features.

    摘要翻译: 本发明涉及一种用于通过识别反射回波序列中的特征集合并且通过比较特征集合来确定特征之间的时间偏移值来确定目标体中局部应变的装置和方法。