MA-MIL: Sampling point-level abnormal ECG location method via weakly supervised learning.
Comput Methods Programs Biomed
; 250: 108164, 2024 Jun.
Article
em En
| MEDLINE
| ID: mdl-38718709
ABSTRACT
BACKGROUND AND OBJECTIVE:
Current automatic electrocardiogram (ECG) diagnostic systems could provide classification outcomes but often lack explanations for these results. This limitation hampers their application in clinical diagnoses. Previous supervised learning could not highlight abnormal segmentation output accurately enough for clinical application without manual labeling of large ECG datasets.METHOD:
In this study, we present a multi-instance learning framework called MA-MIL, which has designed a multi-layer and multi-instance structure that is aggregated step by step at different scales. We evaluated our method using the public MIT-BIH dataset and our private dataset.RESULTS:
The results show that our model performed well in both ECG classification output and heartbeat level, sub-heartbeat level abnormal segment detection, with accuracy and F1 scores of 0.987 and 0.986 for ECG classification and 0.968 and 0.949 for heartbeat level abnormal detection, respectively. Compared to visualization methods, the IoU values of MA-MIL improved by at least 17 % and at most 31 % across all categories.CONCLUSIONS:
MA-MIL could accurately locate the abnormal ECG segment, offering more trustworthy results for clinical application.Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Algoritmos
/
Eletrocardiografia
/
Aprendizado de Máquina Supervisionado
Limite:
Humans
Idioma:
En
Revista:
Comput Methods Programs Biomed
Assunto da revista:
INFORMATICA MEDICA
Ano de publicação:
2024
Tipo de documento:
Article
País de afiliação:
China