ArticleScientific reports2019
Speckleplethysmographic (SPG) Estimation of Heart Rate Variability During an Orthostatic Challenge.
Article in Scientific reports, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 1 of them a synthesis that pooled it.
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Who cites it
18 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Accuracy of Photoplethysmography-Derived Pulse Rate Variability Compared with Electrocardiography-Derived Heart Rate Variability: A Systematic Review and Meta-Analysis.Sensors (Basel, Switzerland) · 2026Pooled it
- PPG-basis: A python-based toolbox for fast photoplethysmogram decomposition and reconstruction.Computer methods and programs in biomedicine · 2026Article
- Optical methods for cuffless blood pressure measurements.Biophotonics discovery · 2026Review
- Speckle contrast optical spectroscopy for cuffless blood pressure estimation based on microvascular blood flow and volume oscillations.Biomedical optics express · 2025Article
- Rolling shutter speckle plethysmography for quantitative cardiovascular monitoring.Biomedical optics express · 2024Article
- Quantifying tissue properties and absolute hemodynamics using coherent spatial imaging.Journal of biomedical optics · 2023Article
- Development and evaluation of a wearable peripheral vascular compensation sensor in a swine model of hemorrhage.Biomedical optics express · 2023Article
- Comparison between Speckle Plethysmography and Photoplethysmography during Cold Pressor Test Referenced to Finger Arterial Pressure.Sensors (Basel, Switzerland) · 2023Article
- Real-Time Evaluation of Time-Domain Pulse Rate Variability Parameters in Different Postures and Breathing Patterns Using Wireless Photoplethysmography Sensor: Towards Remote Healthcare in Low-Resource Communities.Sensors (Basel, Switzerland) · 2023Article
- Simultaneous photoplethysmography and blood flow measurements towards the estimation of blood pressure using speckle contrast optical spectroscopy.Biomedical optics express · 2023Article
- Intrinsic, widefield optical imaging of hemodynamics in rodent models of Alzheimer's disease and neurological injury.Neurophotonics · 2023Review
- Comparing Remote Speckle Plethysmography and Finger-Clip Photoplethysmography with Non-Invasive Finger Arterial Pressure Pulse Waves, Regarding Morphology and Arrival Time.Bioengineering (Basel, Switzerland) · 2023Article
- Dynamic Phase Extraction: Applications in Pulse Rate Variability.Applied psychophysiology and biofeedback · 2022Article
- Diagnostic Features and Potential Applications of PPG Signal in Healthcare: A Systematic Review.Healthcare (Basel, Switzerland) · 2022Review
- Cardiac Autonomic Response to Active Standing in Calcific Aortic Valve Stenosis.Journal of clinical medicine · 2021Article
- Effect of skin optical absorption on speckleplethysmographic (SPG) signals.Biomedical optics express · 2020Article
- Fast pulsatile blood flow measurement in deep tissue through a multimode detection fiber.Journal of biomedical optics · 2020Article
- Dissociation of Cerebral Blood Flow and Femoral Artery Blood Pressure Pulsatility After Cardiac Arrest and Resuscitation in a Rodent Model: Implications for Neurological Recovery.Journal of the American Heart Association · 2020Article
Corrections and comments
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Authors and funding
5 authors.
Funding
Abstract
Heart rate variability (HRV) provides insight into cardiovascular health and autonomic function. Electrocardiography (ECG) provides gold standard HRV measurements but is inconvenient for continuous acquisition when monitored from the extremities. Optical techniques such as photoplethysmography (PPG), often found in health and wellness trackers for heart rate measurements, have been used to estimate HRV peripherally but decline in accuracy during increased physical stress. Speckleplethysmography (SPG) is a recently introduced optical technique that provides benefits over PPG, such as increased signal amplitude and reduced susceptibility to temperature-induced vasoconstriction. In this research, we compare SPG and PPG to ECG for estimation of HRV during an orthostatic challenge performed by 17 subjects. We find that SPG estimations of HRV are highly correlated to ECG HRV for both time and frequency domain parameters and provide increased accuracy over PPG estimations of HRV. The results suggest SPG measurements are a viable alternative for HRV estimation when ECG measurements are impractical.
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