Journal: Nature Communications
Article Title: Motion-unrestricted dynamic electrocardiogram system utilizing imperceptible electronics
doi: 10.1038/s41467-025-58390-5
Figure Lengend Snippet: a The lightweight CNN that supports in-situ analysis of 12-lead ECG signals. b Images of the main components of the AI module (left) and the off-skin pendant (right). c The working current comparison between the MU-DCG system (the experimental group) and the control group. The current was measured under a 3.7 V power supply. d 12-lead ECG waveforms captured by the MU-DCG system during sitting still, walking, jogging, and up/down stairs. e Lead-II ECG signals were measured by the Holter and the MU-DCG system during the process from stationary to jogging. The signals are bandpass filtered at 1–3 Hz to extract the low-frequency components. Scale amplitude 2 mV. f Statistical chart of ECG waveform quality score for the Holter and the MU-DCG system by cardiologists under different conditions (blind evaluation experiment). Data samples n = 8 were randomly selected from the data tested on three subjects for every box plot; Each box plot represents the mean (central line), half of the standard deviation (box edges), and max/min (whiskers). Statistical significance was assessed using the Kruskal-Wallis Test; * p = 0.04206, ** p = 0.0108, *** p = 8.73349 × 10 −5 ; NS: no significant difference. g The SNR of the MU-DCG system is compared with that of Holter under static and dynamic conditions. S: sit still, W: walk, J: jog, St: Stair. Sta. and Dyn. are abbreviations of static and dynamic respectively. Data samples n = 15 for Holter and n = 35 for this work, which were randomly selected from the data tested on three subjects. Bar height, mean; error bars are s.d.; Statistical significance was assessed using the Kruskal-Wallis Test; * p = 0.00127, ** p = 5.29036 × 10 −5 , *** p = 2.89351 × 10 −5 ; NS: no significant difference. h The classification time and working current test results of the 12-lead ECG data by the BioAIP chip. i Comparison of the recognition accuracy and F1 score of the MI using single-lead and 12-lead ECG data respectively.
Article Snippet: For the Holter device test, a 12-lead LEPU MEDICAL dynamic 12-lead ECG recorder (256 Hz sampling rate) was used to carry out the test just the same as above.
Techniques: In Situ, Comparison, Control, Standard Deviation
ADInstruments is a verified supplier 
