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evelopment and Validation of Deep-Learning Algorithm for Electrocardiography-Based Heart Failure Identification
년도 2019년 7월
카테고리 이달의 kcj Hot Article
저자 Joon-myoung Kwon, MD,1,* Kyung-Hee Kim, MD, PhD,2,* Ki-Hyun Jeon, MD, MS,2,* Hyue Mee Kim, MD, MS,2 Min Jeong Kim, MD, MS,2 Sung-Min Lim, MD, MS,2 Pil Sang Song, MD, PhD,2 Jinsik Park, MD, PhD,2 Rak Kyeong Choi, MD, PhD,2 and Byung-Hee Oh, MD, PhD2
소속 1Department of Emergency Medicine, Mediplex Sejong Hospital, Incheon, Korea. 2Division of Cardiology, Department of Internal Medicine, Cardiovascular Center, Mediplex Sejong Hospital, Incheon, Korea.
첨부파일 1 kcj-49-e56-g002-l.jpg
  • 관리자
  • 등록일 : 2019.06.25
  • Hit 79
Background and Objectives

Screening and early diagnosis for heart failure (HF) are critical. However, conventional screening diagnostic methods have limitations, and electrocardiography (ECG)-based HF identification may be helpful. This study aimed to develop and validate a deep-learning algorithm for ECG-based HF identification (DEHF).

Methods

The study involved 2 hospitals and 55,163 ECGs of 22,765 patients who performed echocardiography within 4 weeks were study subjects. ECGs were divided into derivation and validation data. Demographic and ECG features were used as predictive variables. The primary endpoint was detection of HF with reduced ejection fraction (HFrEF; ejection fraction [EF]≤40%), and the secondary endpoint was HF with mid-range to reduced EF (≤50%). We developed the DEHF using derivation data and the algorithm representing the risk of HF between 0 and 1. We confirmed accuracy and compared logistic regression (LR) and random forest (RF) analyses using validation data.

Results

The area under the receiver operating characteristic curves (AUROCs) of DEHF for identification of HFrEF were 0.843 (95% confidence interval, 0.840–0.845) and 0.889 (0.887–0.891) for internal and external validation, respectively, and these results significantly outperformed those of LR (0.800 [0.797–0.803], 0.847 [0.844–0.850]) and RF (0.807 [0.804–0.810], 0.853 [0.850–0.855]) analyses. The AUROCs of deep learning for identification of the secondary endpoint was 0.821 (0.819–0.823) and 0.850 (0.848–0.852) for internal and external validation, respectively, and these results significantly outperformed those of LR and RF.

Conclusions

The deep-learning algorithm accurately identified HF using ECG features and outperformed other machine-learning methods.

Keywords:
Deep learning; Heart failure; Electrocardiography; Machine learning; Artificial intelligence
원문보기  : https://www.e-kcj.org/DOIx.php?id=10.4070/kcj.2018.0446  

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