Segmentation of Radar-Recorded Heart Sound Signals Using Bidirectional LSTM Networks

Shi K, Schellenberger S, Weber L, Wiedemann P, Michler F, Steigleder T, Malessa A, Lurz F, Ostgathe C, Weigel R, Kölpin A (2019)

Publication Language: English

Publication Status: Published

Publication Type: Conference contribution, Conference Contribution

Future Publication Type: Conference contribution

Publication year: 2019

Pages Range: 6677-6680

Event location: Berlin DE

URI: https://ieeexplore.ieee.org/document/8857863

DOI: 10.1109/EMBC.2019.8857863

Abstract

Sounds caused by the action of the heart reflect both its health as well as deficiencies and are examined by physicians since antiquity. Pathologies of the valves, e.g. insufficiencies and stenosis, cardiac effusion, arrhythmia, inflammation of the surrounding tissue and other diagnosis can be reached by experienced physicians. However, practice is needed to assess the findings correctly. Furthermore, stethoscopes do not allow for long-term monitoring of a patient. Recently, radar technology has shown the ability to perform continuous touchless and thereby burden-free heart sound measurements. In order to perform automated classification of the signals, the first and most important step is to segment the heart sounds into their physiological phases. This paper examines the use of different Long Short-Term Memory (LSTM) architectures for this purpose based on a large dataset of radar-recorded heart sounds gathered from 30 different test persons in a clinical study. The best-performing network, a bidirectional LSTM, achieves a sample-wise accuracy of 93.4% and a F1 score for the first heart sound of 95.8%.

Authors with CRIS profile

Kilin Shi Lehrstuhl für Technische Elektronik Sven Schellenberger Lehrstuhl für Technische Elektronik Philipp Wiedemann Lehrstuhl für Technische Elektronik Fabian Michler Lehrstuhl für Technische Elektronik Anke Malessa Department of Palliative Medicine Fabian Lurz Lehrstuhl für Technische Elektronik Christoph Ostgathe Professur für Palliativmedizin Robert Weigel Lehrstuhl für Technische Elektronik Alexander Kölpin Lehrstuhl für Technische Elektronik

Related research project(s)

More quality of life and safety for people in need of care: Innovative contactless monitoring of vital parameters (GUARDIAN) GUARDIAN Jan. 1, 2017 - May 31, 2020

Involved external institutions

Humboldt-Universität zu Berlin DE Germany (DE)

How to cite

APA:

Shi, K., Schellenberger, S., Weber, L., Wiedemann, P., Michler, F., Steigleder, T.,... Kölpin, A. (2019). Segmentation of Radar-Recorded Heart Sound Signals Using Bidirectional LSTM Networks. In Proceedings of the 41st IEEE International Engineering in Medicine and Biology Conference (pp. 6677-6680). Berlin, DE.

MLA:

Shi, Kilin, et al. "Segmentation of Radar-Recorded Heart Sound Signals Using Bidirectional LSTM Networks." Proceedings of the 41st IEEE International Engineering in Medicine and Biology Conference, Berlin 2019. 6677-6680.

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