Evidence map›Paper›PMID 36904763›Full record

ArticleSensors (Basel, Switzerland)2023

COVID-19 Detection Using Photoplethysmography and Neural Networks.

Sara Lombardi, Piergiorgio Francia, Rossella Deodati, Italo Calamai, Marco Luchini, Rosario Spina, Leonardo Bocchi

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In one paragraph

Article in Sensors (Basel, Switzerland), 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

2 citing papers in PubMed.

  1. Article
  2. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors.

Sara LombardiDepartment of Information Engineering, University of Florence, 50139 Florence, Italy.ORCID 0000-0002-9809-8784
Piergiorgio FranciaDepartment of Information Engineering, University of Florence, 50139 Florence, Italy.ORCID 0000-0001-5176-1449
Rossella DeodatiOspedale San Giuseppe, 50053 Empoli, Italy.
Italo CalamaiOspedale San Giuseppe, 50053 Empoli, Italy.ORCID 0000-0001-9410-1053
Marco LuchiniOspedale San Giuseppe, 50053 Empoli, Italy.
Rosario SpinaOspedale San Giuseppe, 50053 Empoli, Italy.
Leonardo BocchiDepartment of Information Engineering, University of Florence, 50139 Florence, Italy.ORCID 0000-0001-5109-3399

Funding

Tuscany Region Covid Research Grant D75F21000980002
6 · The paper itself

Abstract

The early identification of microvascular changes in patients with Coronavirus Disease 2019 (COVID-19) may offer an important clinical opportunity. This study aimed to define a method, based on deep learning approaches, for the identification of COVID-19 patients from the analysis of the raw PPG signal, acquired with a pulse oximeter. To develop the method, we acquired the PPG signal of 93 COVID-19 patients and 90 healthy control subjects using a finger pulse oximeter. To select the good quality portions of the signal, we developed a template-matching method that excludes samples corrupted by noise or motion artefacts. These samples were subsequently used to develop a custom convolutional neural network model. The model accepts PPG signal segments as input and performs a binary classification between COVID-19 and control samples. The proposed model showed good performance in identifying COVID-19 patients, achieving 83.86% accuracy and 84.30% sensitivity (hold-out validation) on test data. The obtained results indicate that photoplethysmography may be a useful tool for microcirculation assessment and early recognition of SARS-CoV-2-induced microvascular changes. In addition, such a noninvasive and low-cost method is well suited for the development of a user-friendly system, potentially applicable even in resource-limited healthcare settings.

Indexed as

COVID-19PhotoplethysmographyHeart RateHumansNeural Networks, ComputerOximetryOxygenSARS-CoV-2Signal Processing, Computer-AssistedOxygenclassificationconvolutional neural networkdeep learningmicrocirculationmodellingphotoplethysmogram

Identifiers

PMID36904763
PMCPMC10007577

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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.