1 Photoplethysmography ( PPG ) system
نویسنده
چکیده
2 Basic implementation ......................................................................................................... 4 2.1 The optoelectronic parts ......................................................................................................... 4 2.2 The electronic circuit ............................................................................................................. 4 2.3 Arduino code: Analog “oscilloscope” mode .......................................................................... 8 2.4 Arduino code: Digital timing interval mode .......................................................................... 8 2.5 Postprocessing of interval data .............................................................................................. 9
منابع مشابه
Assessment of Photoplethysmography Method in Extraction of Hemoglobin Concentration
Background: The importance of continuous monitoring along with rapid and accurate notification of changes in blood components such as hemoglobin concentration, especially in acute situations, encourages researchers to use non-invasive methods for measuring.Objective: This study was aimed to investigate the correlation between hemoglobin concentration and photoplethysmogram (PPG) and the p...
متن کاملPhotoplethysmography: Design, Development, Analysis and Applications in Clinical and Physiological Measurement – A Review
Photoplethysmography is a non-invasive, electro-optical technique for detecting the cardiovascular pulse wave generated by elastic nature of the peripheral vascular arteries by the contraction of heart. Photoplethysmogram (PPG), a pulse wave generated varies in accordance to blood volume changes in the microvascular bed of a tissue. This review paper emphasizes on the earlier works on the desig...
متن کاملComparison between Reflection - mode 3 Photoplethysmography ( PPG ) and Arterial Diameter 4 Change Detected by Ultrasound at the Region of Radial 5 Artery
1 Continuous monitoring of arterial blood pressure (ABP) can provide vital information on the 2 cardiovascular system in clinical practice and research. To achieve this, methods have been 3 developed to determine ABP continuously and non-invasively, including the wrist volume 4 clamp method, which uses reflection-mode photoplethysmography (PPG) to indicate the 5 volume change of the radial arte...
متن کاملThe Effect of Tracheal Intubation-Induced Autonomic Response on Photoplethysmography
Introduction. Intraoperative stress responses and postoperative pain can be monitored using photoplethysmography (PPG). PPG signal has two components, AC and DC. Effects of noxious stimuli-induced stress responses have not been studied on the DC component of PPG. The aim of this study was to investigate the effect of a known noxious stimulus (endotracheal intubation) on both the AC and DC compo...
متن کاملPerfusion assessment in rat spinal cord tissue using photoplethysmography and laser Doppler flux measurements.
Animal models are widely used to investigate the pathological mechanisms of spinal cord injury (SCI), most commonly in rats. It is well known that compromised blood flow caused by mechanical disruption of the vasculature can produce irreversible damage and cell death in hypoperfused tissue regions and spinal cord tissue is particularly susceptible to such damage. A fiberoptic photoplethysmograp...
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