Pointwise Hypothesis Testing of Biomedical Near-Infrared Spectroscopy Signals
Straipsniai
Miglė Gervytė
Vilniaus universitetas
Tadas Žvirblis
Vilniaus universitetas
Publikuota 2025-05-09
https://doi.org/10.15388/LMITT.2025.4
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Kaip cituoti

Gervytė, M. and Žvirblis, T. (2025) “Pointwise Hypothesis Testing of Biomedical Near-Infrared Spectroscopy Signals”, Vilnius University Open Series, pp. 28–36. doi:10.15388/LMITT.2025.4.

Santrauka

This study uses a pointwise statistical approach to analyze Near-Infrared Spectroscopy (NIRS) signals in preterm infants with and without Patent Ductus Arteriosus (PDA). Three oxygenation signals—SpO2, rSO2-1 (cerebral), and rSO2-2 (renal)—were analyzed across no-PDA, PDA, and hsPDA groups. Smoothed signals were tested using pointwise ANOVA and Tukey HSD to detect significant group differences. Results showed distinct patterns in rSO2-1 and rSO2-2, with the hsPDA group standing out in rSO2-1 and the no-PDA group in rSO2-2, demonstrating the value of this method in biomedical signal analysis.

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