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    SYSTEMS AND METHODS FOR LUMEN BORDER DETECTION IN INTRAVASCULAR ULTRASOUND SEQUENCES
    1.
    发明公开
    SYSTEMS AND METHODS FOR LUMEN BORDER DETECTION IN INTRAVASCULAR ULTRASOUND SEQUENCES 审中-公开
    EN EN EN EN EN EN EN EN EN EN EN EN EN EN EN EN EN EN EN EN EN EN EN EN EN EN EN EN EN EN EN EN EN

    公开(公告)号：EP2962283A1

    公开(公告)日：2016-01-06

    申请号：EP14712837.5

    申请日：2014-02-28

    申请人： Boston Scientific Scimed, Inc.

    发明人： CAI, Anming, He ,  LI, Wenguang ,  SATHYANARAYANA, Shashidhar ,  THOMAS, Lewis, Jones, III

    IPC分类号： G06T7/20 ,  G06T7/00 ,  A61B5/00 ,  A61B6/00 ,  A61B8/08 ,  A61B5/02

    CPC分类号： A61B8/5223 ,  A61B8/0891 ,  A61B8/12 ,  G06T7/0012 ,  G06T7/215 ,  G06T2207/10016 ,  G06T2207/10136 ,  G06T2207/20076 ,  G06T2207/20104 ,  G06T2207/30101 ,  G06T2207/30104

    摘要： A method for processing a sequence of ultrasound frames for display includes receiving a sequence of intravascular ultrasound (IVUS) frames of a vessel having a lumen, the sequence including a first frame and a second frame; determining one or more texture features for each of one or more regions of the first frame; determining at least one flow feature for each of the one or more regions by comparing the first and second frames; deriving a lumen border for the first frame using the one or more texture features and the at least one flow feature to characterize the one or more regions as within or outside of the lumen of the vessel; and displaying an ultrasound image of the first frame with the lumen border.

    摘要翻译： 用于处理用于显示的超声帧序列的方法包括：接收具有内腔的血管的血管内超声（IVUS）帧序列，所述序列包括第一帧和第二帧; 确定所述第一帧的一个或多个区域中的每一个的一个或多个纹理特征; 通过比较所述第一和第二帧来确定所述一个或多个区域中的每一个的至少一个流特征; 使用所述一个或多个纹理特征和所述至少一个流动特征来导出所述第一框架的管腔边界以将所述一个或多个区域表征为在所述容器的内腔内或外部; 以及显示具有所述管腔边界的所述第一帧的超声图像。

    IMAGING DEVICES WITH AN ARRAY OF TRANSDUCERS
    3.
    发明公开
    IMAGING DEVICES WITH AN ARRAY OF TRANSDUCERS 有权
    BILDGEBUNGSVORRICHTUNGEN MIT EINER ANORDNUNG VON WANDLERN

    公开(公告)号：EP2962124A2

    公开(公告)日：2016-01-06

    申请号：EP14712075.2

    申请日：2014-02-27

    申请人： Boston Scientific Scimed, Inc.

    发明人： THOMAS, Lewis, Jones, III ,  LI, Wenguang ,  CAI, Anming, He

    IPC分类号： G01S15/89 ,  G01S7/52 ,  A61B8/12

    CPC分类号： A61B8/4483 ,  A61B8/12 ,  A61B8/445 ,  G01S7/52077 ,  G01S15/8915 ,  G01S15/8927 ,  G01S15/8956 ,  G01S15/8997

    摘要： A medical imaging assembly includes an. elongated catheter having a connector at the proximal end; an array of transducers on the distal end of the catheter; conductors electrically coupled to the array of transducers and in electrical communication with the connector of the catheter; and a control unit coupleable to the catheter to send and receive electrical signals between the control unit and the array of transducers through the connector of the catheter. The control unit has a processor to execute instructions including 1) selecting a first subset of M transmitting transducers and a second subset of N receiving transducers from the array of transducers, where N>M; and 2) for each of at least N transmit/receive cycles, a) directing the first subset of M transmitting transducers to transmit an acoustic signal; and b) directing the second subset of N receiving transducers to receive corresponding echo signals.

    摘要翻译： 医疗成像组件包括在近端具有连接器的细长导管; 在导管的远端上的一组换能器; 导体，电耦合到所述换能器阵列并与所述导管的连接器电连通; 以及控制单元，其可耦合到导管，以通过导管的连接器在控制单元和换能器阵列之间发送和接收电信号。 控制单元具有执行指令的处理器，其包括1）从传感器阵列中选择M个发射换能器的第一子集和N个接收换能器的第二子集，其中N> M; 和2）对于至少N个发射/接收周期中的每一个，a）指示M个发射换能器的第一子集发射声信号; 以及b）指示N个接收换能器的第二子集接收相应的回波信号。

    SYSTEMS AND METHODS FOR REDUCING NON-UNIFORM ROTATION DISTORTION IN ULTRASOUND IMAGES
    4.
    发明公开
    SYSTEMS AND METHODS FOR REDUCING NON-UNIFORM ROTATION DISTORTION IN ULTRASOUND IMAGES 有权
    系统和方法的超声图像异径转动不均匀失真

    公开(公告)号：EP2632338A1

    公开(公告)日：2013-09-04

    申请号：EP11761809.0

    申请日：2011-09-21

    申请人： Boston Scientific Scimed, Inc.

    发明人： CAI, Anming, He

    IPC分类号： A61B8/12

    CPC分类号： A61B8/5269 ,  A61B8/12 ,  A61B8/445 ,  A61B8/4461 ,  A61B8/5207

    摘要： A method for generating an ultrasound image includes receiving an image frame comprising consecutive ultrasound scan lines obtained using a rotating ultrasound imaging arrangement and determining at least a first cross-correlation value and a second cross- correlation value for each of a plurality of the scan lines. For each individual scan line of the plurality of scan lines, the first cross-correlation value comprises a cross-correlation coefficient between a first subframe comprising a plurality of consecutive scan lines including the individual scan line and a second subframe comprising a plurality of scan lines shifted from the first subframe by a first integer value. The second correlation value comprising a cross-correlation coefficient between the first subframe and a third subframe comprising a plurality scan lines shifted from the first subframe by a second integer value that is different from the first integer value. The method further includes evaluating, individually for multiple scan lines of the plurality of scan lines, whether the scan line being evaluated exhibits non-uniform rotation distortion using at least one of the first and second correlation values for the scan line being evaluated, A correction for non-uniform rotation distortion is applied using at least one of the first and second correlation values for at least one of the plurality of scan lines. An ultrasound image is generated using at least the plurality of scan lines with the applied correction and the ultrasound image is displayed.

    SYSTEMS AND METHODS FOR MAKING AND USING ROTATIONAL TRANSDUCERS FOR CONCURRENTLY IMAGING BLOOD FLOW AND TISSUE
    7.
    发明公开
    SYSTEMS AND METHODS FOR MAKING AND USING ROTATIONAL TRANSDUCERS FOR CONCURRENTLY IMAGING BLOOD FLOW AND TISSUE 有权
    系统和计算机程序，用于血流量及组织的同时成像的生产和使用回转SOUND头部中

    公开(公告)号：EP2637566A1

    公开(公告)日：2013-09-18

    申请号：EP11767517.3

    申请日：2011-09-21

    申请人： Boston Scientific Scimed, Inc.

    发明人： CAI, Anming, He

    IPC分类号： A61B8/06 ,  A61B8/12

    CPC分类号： A61B8/488 ,  A61B8/06 ,  A61B8/12 ,  A61B8/13 ,  A61B8/445 ,  A61B8/4461 ,  A61B8/463 ,  A61B8/464 ,  A61B8/5207 ,  A61B8/5246 ,  A61B8/5276

    摘要： A method for generating a composite image using an intravascular imaging device includes receiving reflected echo signals from at least one transducer along a first of a plurality of radial scan lines. The received echo signals are passed through a plurality of signal processing channels to form a plurality of filtered signals. The filtered signals include a high-resolution tissue structure signal and at least one first pre-blood-flow-mask signal. High-resolution tissue structure signals are processed to form a high-resolution tissue structural image. First pre-blood-flow-mask signals are cross-correlated with second pre-blood-flow-mask signals from an adjacent radial scan line to form blood-flow-mask signals. Blood-flow-mask signals are processed to form a blood-flow mask. For each pixel of the composite image, it is determined whether to use a corresponding pixel of the high- resolution tissue structural image or a corresponding pixel of the cross-correlated blood flow mask to generate the composite image pixel.

    摘要翻译： 一种用于生成使用于血管内成像装置的合成图像的方法包括接收沿第一径向扫描线的多个反射从至少一个换能器的回波信号。 所接收的回波信号通过信号处理频道的多元性传递以形成滤波后的信号的复数。 经滤波的信号包括一个高分辨率的组织结构信号和至少一个第一预血液流屏蔽信号。 高分辨率组织结构的信号进行处理，以形成高分辨率的结构组织图像。 与第二预血液流屏蔽信号第一预血液流掩模信号互相关以从相邻的径向扫描线以形成血液流屏蔽信号。 血流掩模信号被处理，以形成一个血液流量面罩。对于复合图像的每个像素，它是确定的开采是否使用高分辨率组织结构图像的对应像素或的互相关中的对应像素 血流掩模来生成合成图像的像素。