Assessing Electrocardiogram and Respiratory Signal Quality of a Wearable Device (SensEcho): Semisupervised Machine Learning-Based Validation Study

Haoran Xu   ¹ , MSc ;   Wei Yan   ² , MD ;   Ke Lan   ³ , MSc ;   Chenbin Ma   ⁴ , BSc ;   Di Wu   ³ , MSc ;   Anshuo Wu   ⁵ , BSc ;   Zhicheng Yang   ⁶ , PhD ;   Jiachen Wang   ¹ , BSc ;   Yaning Zang   ⁷ , BM ;   Muyang Yan   ² , PhD, MD ;   Zhengbo Zhang   ⁸ , PhD

¹ Medical School of Chinese PLA, Beijing, China

² Department of Hyperbaric Oxygen, The First Medical Center, Chinese PLA General Hospital, Beijing, China

³ Beijing SensEcho Science & Technology Co., Ltd., Beijing, China

⁴ School of Biological Science and Medical Engineering, Beihang University, Beijing, China

⁵ University of Washington, Seattle, WA, United States

⁶ PAII Inc., Palo Alto, CA, United States

⁷ Department of Kinesiology, Shanghai University of Sport, Shanghai, China

⁸ Centre for Artificial Intelligence in Medicine, Medical Innovation Research Department, Chinese PLA General Hospital, Beijing, China