Patient-Specific Heartbeat Classification in Single-Lead ECG using Convolutional Neural Network

Author(s):  
Elena Merdjanovska ◽  
Aleksandra Rashkovska
2018 ◽  
Vol 60 (4) ◽  
pp. 555-560 ◽  
Author(s):  
Karl D. Spuhler ◽  
John Gardus ◽  
Yi Gao ◽  
Christine DeLorenzo ◽  
Ramin Parsey ◽  
...  

Complexity ◽  
2020 ◽  
Vol 2020 ◽  
pp. 1-10 ◽  
Author(s):  
Fabio Pisano ◽  
Giuliana Sias ◽  
Alessandra Fanni ◽  
Barbara Cannas ◽  
António Dourado ◽  
...  

The Nocturnal Frontal Lobe Epilepsy (NFLE) is a form of epilepsy in which seizures occur predominantly during sleep. In other forms of epilepsy, the commonly used clinical approach mainly involves manual inspection of encephalography (EEG) signals, a laborious and time-consuming process which often requires the contribution of more than one experienced neurologist. In the last decades, numerous approaches to automate this detection have been proposed and, more recently, machine learning has shown very promising performance. In this paper, an original Convolutional Neural Network (CNN) architecture is proposed to develop patient-specific seizure detection models for three patients affected by NFLE. The performances, in terms of accuracy, sensitivity, and specificity, exceed by several percentage points those in the most recent literature. The capability of the patient-specific models has been also tested to compare the obtained seizure onset times with those provided by the neurologists, with encouraging results. Moreover, the same CNN architecture has been used to develop a cross-patient seizure detection system, resorting to the transfer-learning paradigm. Starting from a patient-specific model, few data from a new patient are enough to customize his model. This contribution aims to alleviate the task of neurologists, who may have a robust indication to corroborate their clinical conclusions.


Author(s):  
Yanrui Jin ◽  
Jinlei Liu ◽  
Yunqing Liu ◽  
Liqun Zhao ◽  
Chengliang Liu

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Raabid Hussain ◽  
Alain Lalande ◽  
Kibrom Berihu Girum ◽  
Caroline Guigou ◽  
Alexis Bozorg Grayeli

AbstractTemporal bone CT-scan is a prerequisite in most surgical procedures concerning the ear such as cochlear implants. The 3D vision of inner ear structures is crucial for diagnostic and surgical preplanning purposes. Since clinical CT-scans are acquired at relatively low resolutions, improved performance can be achieved by registering patient-specific CT images to a high-resolution inner ear model built from accurate 3D segmentations based on micro-CT of human temporal bone specimens. This paper presents a framework based on convolutional neural network for human inner ear segmentation from micro-CT images which can be used to build such a model from an extensive database. The proposed approach employs an auto-context based cascaded 2D U-net architecture with 3D connected component refinement to segment the cochlear scalae, semicircular canals, and the vestibule. The system was formulated on a data set composed of 17 micro-CT from public Hear-EU dataset. A Dice coefficient of 0.90 and Hausdorff distance of 0.74 mm were obtained. The system yielded precise and fast automatic inner-ear segmentations.


2021 ◽  
Vol 2021 ◽  
pp. 1-11
Author(s):  
Jing Zhang ◽  
Aiping Liu ◽  
Deng Liang ◽  
Xun Chen ◽  
Min Gao

Discovering shared, invariant feature representations across subjects in electrocardiogram (ECG) classification tasks is crucial for improving the generalization of models to unknown patients. Although deep neural networks have recently been emerging in extracting generalizable ECG features, they usually rely on labeled samples from a large number of subjects to guarantee generalization. Extracting invariant representations to intersubject variabilities from a small number of subjects is still a challenge today due to individual physical differences. To address this problem, we propose an adversarial deep neural network framework for interpatient heartbeat classification by integrating adversarial learning into a convolutional neural network to learn subject-invariant, class-discriminative features. The proposed method was evaluated on the MIT-BIH arrhythmia database which is a publicly available ECG dataset collected from 47 patients. Compared with the state-of-the-art methods, the proposed method achieves the highest performance for detecting supraventricular ectopic beats (SVEBs), which are very challenging to identify, and also gains comparable performance on the detection of ventricular ectopic beats (VEBs). The sensitivities of SVEBs and VEBs are 78.8% and 92.5%, respectively. The precisions of SVEBs and VEBs are 90.8% and 94.3%, respectively. With high performance in the detection of pathological classes (i.e., SVEBs and VEBs), this work provides a promising method for ECG classification tasks when the number of patients is limited.


2019 ◽  
Vol 44 (2) ◽  
Author(s):  
Haoren Wang ◽  
Haotian Shi ◽  
Xiaojun Chen ◽  
Liqun Zhao ◽  
Yixiang Huang ◽  
...  

IEEE Access ◽  
2019 ◽  
Vol 7 ◽  
pp. 153751-153760 ◽  
Author(s):  
Qingsong Xie ◽  
Shikui Tu ◽  
Guoxing Wang ◽  
Yong Lian ◽  
Lei Xu

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