Key result
Standardized PPG naming convention unifies terminology to expand diagnostic feature extraction.
Standardizing PPG waveform terminology may facilitate the discovery of new diagnostic features for cardiovascular disease screening.
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May enable consistent PPG feature extraction for cardiovascular screening; leaves open prospective validation of expanded diagnostic utility.
Photoplethysmogram (PPG) signals collected using a pulse oximeter are increasingly being used for screening and diagnosis purposes. Because of the non-invasive, cost-effective, and easy-to-use nature of the pulse oximeter, clinicians and biomedical engineers are investigating how PPG signals can help in the management of many medical conditions, especially for global health application. The study of PPG signal analysis is relatively new compared to research in electrocardiogram signals, for instance; however, we anticipate that in the near future blood pressure, cardiac output, and other clinical parameters will be measured from wearable devices that collect PPG signals, based on the signal's vast potential. This article attempts to organize and standardize the names of PPG waveforms to ensure consistent terminologies, thereby helping the rapid developments in this research area, decreasing the disconnect within and among different disciplines, and increasing the number of features generated from PPG waveforms.
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Elgendi et al. (2018) conducted a review in Cardiovascular disease screening and diagnosis. Standardized naming of PPG waveforms was evaluated. A standardized naming convention for photoplethysmogram waveforms and their derivatives is proposed to facilitate consistent terminology and increase the number of diagnostic features generated.
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