ArticleBiomedical optics express2018
Comparison of speckleplethysmographic (SPG) and photoplethysmographic (PPG) imaging by Monte Carlo simulations and
Article in Biomedical optics express, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.
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Who cites it
22 citing papers in PubMed, 29 citations in OpenAlex.
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- Advancing intraoperative cerebral blood flow monitoring: integrating imaging photoplethysmography and laser speckle contrast imaging in neurosurgery.Frontiers of optoelectronics · 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
- Quantitative hemodynamic imaging: a method to correct the effects of optical properties on laser speckle imaging.Neurophotonics · 2023Article
- Comparison between Speckle Plethysmography and Photoplethysmography during Cold Pressor Test Referenced to Finger Arterial Pressure.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
- Random matrix-based laser speckle contrast imaging enables quasi-3D blood flow imaging in laparoscopic surgery.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
- Camera-Derived Photoplethysmography (rPPG) and Speckle Plethysmography (rSPG): Comparing Reflective and Transmissive Mode at Various Integration Times Using LEDs and Lasers.Sensors (Basel, Switzerland) · 2022Article
- MCCL: an open-source software application for Monte Carlo simulations of radiative transport.Journal of biomedical optics · 2022Article
- Optical difference in the frequency domain to suppress disturbance for wearable electronics.Biomedical optics express · 2020Article
- Effect of skin optical absorption on speckleplethysmographic (SPG) signals.Biomedical optics express · 2020Article
- Extendable, large-field multi-modal optical imaging system for measuring tissue hemodynamics.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
- Handheld motion stabilized laser speckle imaging.Biomedical optics express · 2019Article
Corrections and comments
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Authors and funding
5 authors at 2 institutions in 1 country.
Funding
Abstract
Noncontact photoplethysmography (PPG) is limited by a poor signal-to-noise ratio (SNR). A solution to this limitation is the use of alternate sources of optical contrast to generate a complementary pulsatile waveform. One such source is laser speckle contrast, which is modulated in biological tissues by the flow rate of red blood cells. Averaging a region of interest from a speckle contrast image over time allows for the calculation of a speckleplethysmogram (SPG). Similar to PPG, SPG enables monitoring of heart rate and respiratory rate. A gap in the knowledge base exists as to the precise spatiotemporal relationship between PPG and SPG signals. We have developed an eight-layer tissue model to simulate both PPG and SPG signals in a reflectance geometry via Monte Carlo methods. We modeled PPG by compression of the upper and lower blood nets due to expansion of the larger arterial layer below. The
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.