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Pulse oximeters use photoplethysmographic (PPG) signals for measurement of oxygen saturation in arterial blood. They measure volumetric changes in the blood flowing through the body, usually extremities such as a finger or an ear lobe. The peripheral pulse signal obtained by transmitted light through the illuminated body extremity, gets modulated by heart synchronous pulse, respiratory activity and...
Sudden cardiac death (SCD) is a major health concern. In time domain, detection of such condition involving monitoring the 24-h ambulatory ECG is a big issue. Here, the presented work describes higher order spectral analysis carried out on the normal portion of SCD-ECG and the analyzed parameters are compared with that of healthy person ECG. The developed algorithm detects the chances of myocardial...
In high risk situations such as cardiac arrhythmias, ambulatory monitoring, stress tests, sleep disorder investigations and post-operative hypoxemia situations, monitoring of respiratory activity would be mandatory. Electrocardiogram (ECG), blood pressure (BP) and photoplethysmographic (PPG) signals can be used for extraction of respiratory activity, and will eventually eliminate the use of additional...
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