Accurate end systole detection in dicrotic notch-less arterial pressure waveforms
نویسندگان
چکیده
منابع مشابه
Novel Notch Detection Algorithm for Detection of Dicrotic Notch in PPG Signals
Photoplethysmography (PPG) is a non-invasive optical technique that measures relative blood volume changes in the blood vessels and is widely used for research and physiological studies. Dicrotic notch represent the closure of the aortic semi-lunar valve and subsequent receding blood flow when ventricles relax. Their location is used to calculate systolic time intervals and monitor cardiac func...
متن کاملThe dicrotic arterial pulse.
SUMMARY The study consisted of observations on nine male patients with palpable dicrotic carotid pulses. Average patient age was 37 years. All had advanced myocardial failure as evidenced by cardiomegaly and the presence of prominent atrial and ventricular diastolic gallop sounds. Most of these patients were diagnosed as having primary myocardial disease. The indirect carotid pulse was characte...
متن کاملOn an automatic delineator for arterial blood pressure waveforms
Arterial blood pressure waveforms contain rich pathophysiological information; hence receive much attention in cardiovascular health monitoring. To assist computerized analysis, an automatic delineator was proposed for the fiducial points of arterial blood pressure waveforms, namely their onsets, systolic peaks and dicrotic notches. The presented delineator characterizes arterial blood pressure...
متن کاملFPGA Based Digital System for Detection of Dicrotic Notch in the Carotid Pulse Signal
Heart disease is one of the leading causes of death in human beings. A survey shows every year about 900,000 peoples die due to heart diseases worldwide. Carotid pulse is a pressure signal recorded over the carotid artery as it passes near the surface of the body at the neck. An abnormal carotid pulse called the dicrotic pulse occurs when patients suffer from sepsis, hypovolemic shock, cardiac ...
متن کاملDetection of hemorrhage by analyzing shapes of the arterial blood pressure waveforms
Methods 62 healthy pigs are anesthetized, intubated, ventilated, and instrumented prior to and during a controlled bleeding at a rate of 20 ml/min. ABP is recorded at a 250 Hz rate. To estimate the likelihood of bleeding, our algorithm: (1) Extracts 10 s disjoint intervals of ABP waveform and standardizes the time series to zero mean and unit standard deviation; (2) Discretizes the standardized...
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ژورنال
عنوان ژورنال: Journal of Clinical Monitoring and Computing
سال: 2020
ISSN: 1387-1307,1573-2614
DOI: 10.1007/s10877-020-00473-3