Supervised Machine Learning Applied to Automate Flash and Prolonged Capillary Refill Detection by Pulse Oximetry

Autor: Ryan Brandon Hunter, Shen Jiang, Akira Nishisaki, Amanda J. Nickel, Natalie Napolitano, Koichiro Shinozaki, Timmy Li, Kota Saeki, Lance B. Becker, Vinay M. Nadkarni, Aaron J. Masino
Jazyk: angličtina
Rok vydání: 2020
Předmět:
Zdroj: Frontiers in Physiology, Vol 11 (2020)
Druh dokumentu: article
ISSN: 1664-042X
DOI: 10.3389/fphys.2020.564589
Popis: ObjectiveDevelop an automated approach to detect flash (2.0 s) capillary refill time (CRT) that correlates with clinician judgment by applying several supervised machine learning (ML) techniques to pulse oximeter plethysmography data.Materials and MethodsData was collected in the Pediatric Intensive Care Unit (ICU), Cardiac ICU, Progressive Care Unit, and Operating Suites in a large academic children’s hospital. Ninety-nine children and 30 adults were enrolled in testing and validation cohorts, respectively. Patients had 5 paired CRT measurements by a modified pulse oximeter device and a clinician, generating 485 waveform pairs for model training. Supervised ML models using gradient boosting (XGBoost), logistic regression (LR), and support vector machines (SVMs) were developed to detect flash (
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