Gyrocardiography: A new non-invasive approach in the study of mechanical motions of the heart. Concept, method and initial observations

机译：心动描记术：研究心脏机械运动的一种新的非侵入性方法。概念，方法和初步观察

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The pumping action of the heart is performed by contraction of the myocardium fibers. We present a non-invasive technique named gyrocardiography (GCG) that comprises a sensor of angular motion, gyroscope, configured to obtain three-dimensional angular velocity signals. A tri-axial micro electromechanical (MEMS) gyroscope sensor was attached to the surface of the chest to obtain gyrocardiogram. Color-coded Doppler tissue imaging (DTI) was recorded simultaneously and synchronized with the GCG in an off-line analysis. By placing a region of interest longitudinally around the myocardium in DTI allowed us to investigate whether GCG can provide information indicative of the tissue velocity and relative strain rate of the myocardium. Experimental observations by simultaneously recorded GCG and color DTI suggests that a gyroscope sensor attached to the chest is indeed capable to monitor the myocardial deformation during the cardiac cycle and therefore can provide a gateway to clinically relevant information.

机译：通过心肌纤维的收缩来执行心脏的泵送动作。我们提出了一种名为陀螺心动图（GCG）的非侵入性技术，该技术包括一个角运动传感器，陀螺仪，该陀螺仪配置为获取三维角速度信号。将三轴微机电（MEMS）陀螺仪传感器连接到胸部表面以获得陀螺心动图。同时记录彩色编码的多普勒组织成像（DTI），并在离线分析中与GCG同步。通过在DTI中在心肌周围纵向放置感兴趣区域，我们可以研究GCG是否可以提供指示心肌组织速度和相对应变率的信息。通过同时记录的GCG和彩色DTI进行的实验观察表明，连接到胸部的陀螺仪传感器确实能够监视心动周期中的心肌变形，因此可以提供临床相关信息的途径。

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《Annual International Conference of the IEEE Engineering in Medicine and Biology Society》|2016年|2034-2037|共4页
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Mojtaba Jafari Tadi; Eero Lehtonen; Mikko Pankäälä; Antti Saraste; Tuija Vasankari; Mika Terás; Tero Koivisto;
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Gyroscopes; Strain; Myocardium; Heart; Velocity measurement; Electrocardiography; Micromechanical devices;

机译：陀螺仪;应变;心肌;心;速度测量;心电图;微机械装置;

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Gyrocardiography: A new non-invasive approach in the study of mechanical motions of the heart. Concept, method and initial observations

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