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Mi Lu,Lisa Brenzinger,Lisa Rosenblum,Matthew Salanitro,Ingo Fietze,Martin Glos,Giuseppe Fico,Thomas Penzel 대한의용생체공학회 2023 Biomedical Engineering Letters (BMEL) Vol.13 No.3
We aim to evaluate the diagnostic performance of the SleepImage Ring device in identifying obstructive sleep apnea(OSA) across different severity in comparison to standard polysomnography (PSG). Methods Thirty-nine patients (mean age,56.8 ± 15.0 years; 29 [74.3%] males) were measured with the SleepImage Ring and PSG study simultaneously in order toevaluate the diagnostic performance of the SleepImage device for diagnosing OSA. Variables such as sensitivity, specificity,positive and negative likelihood ratio, positive and negative predictive value, and accuracy were calculated with PSG-AHIthresholds of 5, 15, and 30 events/h. Receiver operating characteristic curves were also built according to the above PSGAHIthresholds. In addition, we analyzed the correlation and agreement between the apnea-hypopnea index (AHI) obtainedfrom the two measurement devices. Results There was a strong correlation (r = 0.89, P < 0.001 and high agreement in AHIbetween the SleepImage Ring and standard PSG. Also, the SleepImage Ring showed reliable diagnostic capability, with areasunder the receiver operating characteristic curve of 1.00 (95% CI, 0.91, 1.00), 0.90 (95% CI, 0.77, 0.97), and 0.98 (95% CI,0.88, 1.000) for corresponding PSG-AHI of 5, 15 and 30 events/h, respectively. Conclusion The SleepImage Ring could bea clinically reliable and cheaper alternative to the gold standard PSG when aiming to diagnose OSA in adults.