Real-time Detection of Aortic Valve in Echocardiography using Convolutional Neural Networks

Nizar, Muhammad Hanif Ahmad and Chan, Chow Khuen and Khalil, Azira and Yusof, Ahmad Khairuddin Mohamed and Lai, Khin Wee (2020) Real-time Detection of Aortic Valve in Echocardiography using Convolutional Neural Networks. Current Medical Imaging, 16 (5). pp. 584-591. ISSN 1573-4056, DOI

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Background: Valvular heart disease is a serious disease leading to mortality and increasing medical care cost. The aortic valve is the most common valve affected by this disease. Doctors rely on echocardiogram for diagnosing and evaluating valvular heart disease. However, the images from echocardiogram are poor in comparison to Computerized Tomography and Magnetic Resonance Imaging scan. This study proposes the development of Convolutional Neural Networks (CNN) that can function optimally during a live echocardiographic examination for detection of the aortic valve. An automated detection system in an echocardiogram will improve the accuracy of medical diagnosis and can provide further medical analysis from the resulting detection. Methods: Two detection architectures, Single Shot Multibox Detector (SSD) and Faster Regional based Convolutional Neural Network (R-CNN) with various feature extractors were trained on echocardiography images from 33 patients. Thereafter, the models were tested on 10 echocardiography videos. Results: Faster R-CNN Inception v2 had shown the highest accuracy (98.6%) followed closely by SSD Mobilenet v2. In terms of speed, SSD Mobilenet v2 resulted in a loss of 46.81% in framesper- second (fps) during real-time detection but managed to perform better than the other neural network models. Additionally, SSD Mobilenet v2 used the least amount of Graphic Processing Unit (GPU) but the Central Processing Unit (CPU) usage was relatively similar throughout all models. Conclusion: Our findings provide a foundation for implementing a convolutional detection system to echocardiography for medical purposes. © 2020, Bentham Science Publishers. All rights reserved.

Item Type: Article
Funders: Postgraduate Research grants (RF002A-2018 and BKS018-2018) from University of Malaya
Uncontrolled Keywords: Aortic valve; Cardiology; Convolutional neural network; Deep learning; Echocardiography; Heart valve
Subjects: R Medicine
Divisions: Faculty of Engineering
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 07 Sep 2020 03:20
Last Modified: 07 Sep 2020 03:20

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