首页>
外国专利>
Method and System For Estimating Cardiac Ejection Volume And Placing Pacemaker Electrodes Using Speckle Tracking
Method and System For Estimating Cardiac Ejection Volume And Placing Pacemaker Electrodes Using Speckle Tracking
展开▼
机译:斑点追踪估计心脏射血量和起搏器电极的方法和系统
展开▼
页面导航
摘要
著录项
相似文献
摘要
A method and system for estimating the volume of blood ejected from a cardiac ventricle or atrium uses ultrasound to track speckle patterns in the heart. The process utilizes the M-mode to estimate volume differences in a view of the ventricle or atrium over time using speckle pattern motion to estimate volume differences between systole and diastole. Alternatively, the ultrasound speckle tracking method may be used in combination with Doppler processing techniques or to obtain temporal flow profiles across flow cross-sectional areas, from which the flow volume is computed. The method can also measure the phase delay of motion of sites on the cardiac wall relative to each other or relative to an ECG signal.
展开▼