公开(公告)号：US07211045B2

公开(公告)日：2007-05-01

申请号：US10620517

申请日：2003-07-16

申请人： Praveen Dala-Krishna ,  Charles Bryan Byrd ,  David Jenkins ,  Charles Lee Byrd

发明人： Praveen Dala-Krishna ,  Charles Bryan Byrd ,  David Jenkins ,  Charles Lee Byrd

IPC分类号： A61B8/06

CPC分类号： A61B8/0883 ,  A61B8/065 ,  A61B8/12 ,  A61B8/543

摘要： A method and system for estimating the volume of blood ejected from the left ventricle of the heart to a succeeding chamber/conduit, or vice-versa, while imaging the intersection of such structures is described. The process utilizes either the M-mode to estimate volume differences in a view of the ventricle over time or Doppler processing techniques to obtain flow profiles across intersections (e.g., valves), or blood vessels, which are then utilized to calculate output. This process can be combined with ECG guidance/triggering to measure/track changes in output from beat to beat, or during the course of an evaluation or therapeutic procedure. This process can be specifically used for the placement of permanent pacemaker electrodes.

摘要翻译： 描述了在对这种结构的交叉进行成像时估计从心脏左心室向后续腔室/导管喷射的血液的体积或反之亦然的方法和系统。 该过程利用M模式来估计随时间的心室视图中的体积差异或多普勒处理技术以获得跨越交叉点（例如，阀）或血管的流量分布，然后将其用于计算输出。 该过程可以与ECG指导/触发相结合，以测量/跟踪从节拍到节拍的输出变化，或在评估或治疗过程中。 该过程可以专门用于放置恒定起搏器电极。