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    SIGNAL AVERAGING
    51.
    发明公开
    SIGNAL AVERAGING 审中-公开
    信号平均

    公开(公告)号：EP2704628A2

    公开(公告)日：2014-03-12

    申请号：EP12779596.1

    申请日：2012-05-04

    申请人： CardioInsight Technologies, Inc.

    发明人： GEORGE, Brian, P. ,  DUBOIS, Remi ,  RAMANATHAN, Charulatha ,  WODLINGER, Harold

    IPC分类号： A61B5/0402 ,  A61B5/0452

    摘要： A method (500) can comprise performing principal component analysis (PCA) on data corresponding to a subset of a plurality of signals and a selected template to generate a virtual lead and an optimized template (530). The method can also comprise calculating a cross correlation on the virtual lead and the optimized template to determine a strength of linear dependence between the virtual lead and the optimized template to determine regions of interest (ROIs) of the virtual lead (540). The method can further comprise detecting peak correlation coefficients in the virtual lead (550). The method can still further comprise comparing the amplitude of each of the ROIs of the virtual lead with the selected template to determine an error between the template and each ROI of the virtual lead (560). The method can yet further comprise averaging the ROIs to generate averaged data (570).

    SYSTEM AND METHOD FOR ASSESSING HEART FUNCTION
    52.
    发明公开
    SYSTEM AND METHOD FOR ASSESSING HEART FUNCTION 有权
    系统和方法评估心脏功能

    公开(公告)号：EP2635181A2

    公开(公告)日：2013-09-11

    申请号：EP11838817.2

    申请日：2011-11-03

    申请人： Cardioinsight Technologies, Inc.

    发明人： RAMANATHAN, Charulatha ,  WODLINGER, Harold ,  STROM, Maria ,  ARLESS, Steven, G. ,  JIA, Ping

    IPC分类号： A61B5/0402 ,  A61B5/0452

    摘要： Systems and methods can be used to provide an indication of heart function, such as an indication of mechanical function or hemodynamics of the heart, based on electrical data. For example, a method for assessing a function of the heart can include determining a time-based electrical characteristic for a plurality of points distributed across a spatial region of the heart. The plurality of points can be grouped into at least two subsets of points based on at least one of a spatial location for the plurality of points or the time-based electrical characteristics for the plurality of points. An indication of synchrony for the heart can be quantified based on relative analysis of the determined time-based electrical characteristic for each of the at least two subsets of points.

    LOCALIZATION OF OBJECTS WITHIN A CONDUCTIVE VOLUME
    59.
    发明公开
    LOCALIZATION OF OBJECTS WITHIN A CONDUCTIVE VOLUME 审中-公开

    公开(公告)号：EP3198225A4

    公开(公告)日：2018-05-30

    申请号：EP15844438

    申请日：2015-09-28

    申请人： CARDIOINSIGHT TECHNOLOGIES INC

    发明人： JIA PING ,  ZENG QINGGUO ,  RAMANATHAN CHARULATHA ,  BOKAN RYAN

    IPC分类号： G01C21/00

    CPC分类号： A61B5/063 ,  A61B5/0422 ,  A61B5/053 ,  A61B5/0538 ,  A61B2560/0223 ,  A61B2560/0276 ,  A61B2562/046

    摘要： An example method includes applying a localization signal to a source electrode positioned within a conductive volume and a ground electrode at a known location. Electrical activity is sensed at a plurality of sensor electrodes distributed across an outer surface of the conductive volume. The locations of each of the sensor electrodes and the location of the ground electrode being stored in memory as part of geometry data. The electrical activity sensed at each of the sensor electrodes is stored in the memory as electrical measurement data. The method also includes computing a location of the source electrode by minimizing a difference between respective pairs of source voltages determined for the plurality of sensor electrodes. The source voltage for each of the sensor electrodes is determined based on the electrical measurement data and the geometry data.

    LOCALIZATION OF OBJECTS WITHIN A CONDUCTIVE VOLUME
    60.
    发明公开
    LOCALIZATION OF OBJECTS WITHIN A CONDUCTIVE VOLUME 审中-公开
    导体体积内的物体定位

    公开(公告)号：EP3198225A1

    公开(公告)日：2017-08-02

    申请号：EP15844438.0

    申请日：2015-09-28

    申请人： CardioInsight Technologies, Inc.

    发明人： JIA, Ping ,  ZENG, Qingguo ,  RAMANATHAN, Charulatha ,  BOKAN, Ryan

    IPC分类号： G01C21/00

    摘要： An example method includes applying a localization signal to a source electrode positioned within a conductive volume and a ground electrode at a known location. Electrical activity is sensed at a plurality of sensor electrodes distributed across an outer surface of the conductive volume. The locations of each of the sensor electrodes and the location of the ground electrode being stored in memory as part of geometry data. The electrical activity sensed at each of the sensor electrodes is stored in the memory as electrical measurement data. The method also includes computing a location of the source electrode by minimizing a difference between respective pairs of source voltages determined for the plurality of sensor electrodes. The source voltage for each of the sensor electrodes is determined based on the electrical measurement data and the geometry data.

    摘要翻译： 示例方法包括将定位信号施加到位于导电体积内的源电极和已知位置处的接地电极。 在分布在导电体积的外表面上的多个传感器电极处感测电活动。 每个传感器电极的位置和接地电极的位置作为几何数据的一部分存储在存储器中。 在每个传感器电极处感测到的电活动作为电测量数据存储在存储器中。 该方法还包括通过最小化针对多个传感器电极确定的各对源电压之间的差来计算源电极的位置。 基于电测量数据和几何数据确定每个传感器电极的源电压。