本研究利用血行動力儀探討心衰竭病患的心臟機械功能的變化情形，血行動力儀是根據血液流體動力學理論發展而來，以電容式麥克風於手腕橈動脈測量脈搏跳動產出的聲音訊號，此訊號中包含了人體血流動力系統中任何的動態壓力變化訊息；由分析此訊號之原始波形配合心電圖測得之心電圖同步比對可辨別出此波形所代表之心臟與血管方面的各種動態訊息以及心臟供血動態狀況。本研究發現由原始波形中心室快速射血期時間以及心跳變異率分析中能量頻譜密度以及潘凱圖分析，可以建立出心臟衰竭程度以及收縮功能的相關標準。而血行動力儀具備了方便與易於判讀之特性，從其所獲得之心血管與心臟之動態資訊，來協助基層臨床醫療人員對於臨床症狀疑似心衰竭病患，提供初步心功能的評估對於基層醫療體系系統上心衰竭的診斷及治療一定大有助益。

The Non-Invasive Hemodynamic Analyzer (NIHD) is used to probe the variation of the mechanical function of heart, this device is developed based on the hemodynamics theory. On measuring the audio signal from the pulse beat from wrist artery from a condenser microphone, the results contains the detailed hemodynamics information of the cardiovascular system can be observed. The digital signal analysis of the data obtained can unveil the detailed cardiovascular behavior. The analysis of signal in-line with ECG wave and mean arterial pressure wave delivers much more detailed information corresponding to the cardiovascular system. This study try to build the basis standard for which the degree of heart failure and systole function of heart can be examined. From the data of rapid ejection time of ventricular, power spectral density (PSD) of heart rate variability and Pointcare’ plot is used for the examination. The device of NIHD has the characteristics of convenience on operation and easily interpretation on the data, it can be used to offer an early diagnostic on the heart failure disorder in the primary medical system.

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