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Heart sound segmentation using signal processing methods [PDF]

, 2015
Cataloged from PDF version of article.Heart murmurs are pathological heart sounds that originate from blood flowing with abnormal turbulence due to physiological defects of the heart, and are the prime indicator of many heart-related diseases.
Şahin, Devrim
core  

Research on heart sound segmentation algorithm based on adaptive threshold

四川大学学报. 自然科学版, 2019
Heart sound signal can reflect the activity of the human heart valve, and the heart sound classification can distinguish the pathological information of different heart sounds, which is of great significance for clinical diagnosis of different heart ...
ZENG Jin-Yun, HE Pei-Yu, PAN Fan
doaj  

Construction and validation of a method for automated time label segmentation of heart sounds

Frontiers in Artificial Intelligence
Heart sound detection technology plays an important role in the prediction of cardiovascular disease, but the most significant heart sounds are fleeting and may be imperceptible.
Liuying Li, Min Huang, Ling Dao, Ling Dao, Xixi Feng, Yifeng Liu, Changyou Wei, Fangfang Liu, Jing Zhang, Fan Xu   +9 more
doaj   +1 more source

Continuum Robots in Surgery: From Engineering Design to Clinical Practice

Advanced Robotics Research, EarlyView.
The hyper‐redundant nature of continuum robot structures enables near‐infinite degrees of freedom leading to immense potential for medical applications. This review provides a historical background of continuum robots and novel ideas shaping their progress to current structural design, sensing technology, modeling techniques, and control methods.
Griffin Smith, Kaitlyn Clancy, Siwen Xie, Xiaochen Li, Sarah Khalife, Benjamin van der Woerd, Onaizah Onaizah   +6 more
wiley   +1 more source

Application of End-to-End Convolutional Kolmogorov-Arnold Networks in Atrial Fibrillation Heart Sound Recognition [PDF]

Jisuanji kexue
Atrial fibrillation(AF) is a severe cardiac arrhythmia that requires early diagnosis.Traditional diagnostic methods typically involve cardiologists using electrocardiograms(ECG) and echocardiograms to make diagnostic conclusions.To address issues such as
DENG Hong, CHEN Yan, YANG Hongbo, ZHAO Feng, JIANG Yongzhuo, GUO Tao, WANG Weilian
doaj   +1 more source

CNTN2 Deficiency Disrupts Ascending Auditory Neuroglial Interactions and Redox Homeostasis in Neural Presbycusis

Advanced Science, EarlyView.
. ABSTRACT Neural presbycusis disrupts auditory timing and speech perception, yet its molecular basis remains poorly understood. This study identifies Cntn2 as the Ranvier's nodal molecule significantly downregulated in aged auditory nerves. Cntn2 heterozygous knockout (Cntn2+/−) mice showed elevated auditory brainstem response thresholds and prolonged
Penghui Chen, Jingyi Zhu, Sihan Huang, Beibei Xu, Maoli Duan, Jingrong Lv, Jiarui Chen, Jun Yang, Shule Hou   +8 more
wiley   +1 more source

Heart sound segmentation algorithm based on instantaneous energy of electrocardiogram [PDF]

, 2003
This paper presents an algorithm to detect the first heart sound (S1) and second heart sound (S2). The algorithm utilizes Instantaneous Energy of electrocardiogram (ECG) to estimate the presence of S1 and S2. Thus, heart sound segmentation can be done as
M. B., Malarvili, S., Hussain, D., Helmi, Ismail, Kamarul Afizam   +3 more
core  

A Novel Method for Measuring the Timing of Heart Sound Components through Digital Phonocardiography

Sensors, 2019
The auscultation of heart sounds has been for decades a fundamental diagnostic tool in clinical practice. Higher effectiveness can be achieved by recording the corresponding biomedical signal, namely the phonocardiographic signal, and processing it by ...
Noemi Giordano, Marco Knaflitz
doaj   +1 more source

Time-Frequency Analysis, Denoising, Compression, Segmentation, and Classification of PCG Signals

IEEE Access, 2020
Phonocardigraphy (PCG) is the graphical representation of heart sounds. The PCG signal contains useful information about the functionality and the condition of the heart. It also provides an early indication of potential cardiac abnormalities. Extracting
Tanzil Hoque Chowdhury, Khem Narayan Poudel, Yating Hu   +2 more
doaj   +1 more source

S2 Heart Sound Detects Aortic Valve Calcification Independent of Hemodynamic Changes in Mice

Frontiers in Cardiovascular Medicine, 2022
BackgroundCalcific aortic valve disease (CAVD) is often undiagnosed in asymptomatic patients, especially in underserved populations. Although artificial intelligence has improved murmur detection in auscultation exams, murmur manifestation depends on ...
Valentina Dargam, Hooi Hooi Ng, Hooi Hooi Ng, Sana Nasim, Daniel Chaparro, Camila Iansen Irion, Suhas Rathna Seshadri, Armando Barreto, Zachary C. Danziger, Lina A. Shehadeh, Lina A. Shehadeh, Joshua D. Hutcheson, Joshua D. Hutcheson   +12 more
doaj   +1 more source