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Artificial Intelligence in Medicine:Real Time Electronic stethoscope for Heart Diseases Detection

Computers, Materials & Continua 2022年第2期70卷 2815-2833页

作者： Batyrkhan Omarov Nurbek Saparkhojayev Shyrynkyz Shekerbekova Oxana Akhmetova Meruert Sakypbekova Guldina Kamalova Zhanna Alimzhanova Lyailya Tukenova Zhadyra Akanova Al-Farabi Kazakh National University AlmatyKazakhstan Khoja Akhmet Yassawi International Kazakh-Turkish University TurkistanKazakhstan Abai Kazakh National Pedagogical University Kazakhstan NARXOZ University AlmatyKazakhstan

Diseases of the cardiovascular system are one of the major causes of death *** diseases could be quickly detected by changes in the sound created by the action of the *** dynamic auscultations need extensive professional knowledge and emphasis on listening *** is also an unmet requirement for a compact cardiac condition early warning *** this paper,we propose a prototype of a digital stethoscopic system for the diagnosis of cardiac abnormalities in real time using machine learning *** system consists of three subsystems that interact with each other(1)a portable digital subsystem of an electronic stethoscope,(2)a decision-making subsystem,and(3)a subsystemfor displaying and visualizing the results in an understandable *** electronic stethoscope captures the patient’s phonocardiographic sounds,filters and digitizes them,and then sends the resulting phonocardiographic sounds to the decision-making *** decision-making systemclassifies sounds into normal and abnormal using machine learning techniques,and as a result identifies abnormal heart *** display and visualization subsystem demonstrates the results obtained in an understandable way not only for medical staff,but also for patients and recommends further actions to *** a result of the study,we obtained an electronic stethoscope that can diagnose cardiac abnormalities with an accuracy of more than 90%.More accurately,the proposed stethoscope can identify normal heart sounds with 93.5%accuracy,abnormal heart sounds with 93.25%***,speed is the key benefit of the proposed stethoscope as 15 s is adequate for examination.

关键词： stethoscope phonocardiogram machine learning classification heart diseases PCG

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Auscultation transformed:the ingenious invention of the stethoscope by René Théophile Hyacinthe Laennec

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History & Philosophy of Medicine 2024年第2期6卷 23-27页

作者： René Figueroa Joseph Varon Universidad Autónoma de Baja California Facultad de Ciencias de la Salud Tijuana 22260Mexico Dorrington Medical Associates Houston 77030USA The University of Houston College of Medicine Houston 77204USA

This study delves into the life and significant contributions of René Théophile Hyacinthe Laennec,a prominent French physician of the 19^(th) century,and thoroughly examines his revolutionary creation,the ***’s innovative spirit not only revolutionized medical diagnosis during his time but also left a lasting imprint on the broader field of medicine,influencing healthcare for *** extensive inquiry covers various aspects,including his historical context,the development of the stethoscope,its profound implications for medical diagnosis,and its enduring impact on the history of medicine.

关键词： Laennec stethoscope diagnostic auscultation cardiovascular pulmonary innovation medicine

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An Early Diagnosis of Endocarditis Facilitated by the Electronic stethoscope

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Open Journal of Clinical Diagnostics 2014年第2期4卷 101-104页

作者： Walid Barake Amer M. Johri Cardiology Division Queen’s University Kingston Canada

The practice of cardiac auscultation is a critical tool used by physicians to detect alterations in the cardiovascular system. A case of both left and right sided endocarditis initially detected by electronic auscultation in a woman with a history of injection drug use is described. The electronic stethoscope, with the ability to amplify heart sounds, established the presence of both a systolic and diastolic murmur when standard auscultation failed to detect the diastolic component. Urgent standard echocardiography confirmed concurrent tricuspid and aortic valves endocarditis, and the patient was referred for surgical evaluation urgently. The present case demonstrates the value of the electronic stethoscope to amplify murmurs in the early detection of endocarditis. The case presented also serves as a useful reminder that right-sided endocarditis can have important leftsided complications.

关键词： Electronic stethoscope Conventional stethoscope Endocarditis Murmurs

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随钻测压工具stethoscope在渤海油田的应用

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海洋石油 2015年第1期35卷 86-90页

作者：任宏李欣刘新新贾雍中海油能源发展股份有限公司工程技术分公司天津300452

在油田开发过程中,地层压力是衡量地层能量的重要指标,合理的地层压力是搞好油田稳定和调整挖潜的重要条件。随着油田的勘探开发,地层能量开始衰减,在很大程度上影响了开发效果,因此及时准确了解地层压力的情况就显的尤为重要介绍了Stet... 详细信息

在油田开发过程中,地层压力是衡量地层能量的重要指标,合理的地层压力是搞好油田稳定和调整挖潜的重要条件。随着油田的勘探开发,地层能量开始衰减,在很大程度上影响了开发效果,因此及时准确了解地层压力的情况就显的尤为重要介绍了stethoscope工具特点、测压流程及其在渤海油田应用效果分析。

关键词：随钻测压 stethoscope 地层压力压力分析

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Armarium facilitating angina management post myocardial infarction concomitant with coronavirus disease 2019

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Journal of Geriatric Cardiology 2020年第4期17卷 217-220页

作者： Xiao-Qing CAI Pi-Qi JIAO Tao WU Fu-Ming CHEN Bao-Shi HAN Jiu-Cong ZHANG Yong-Jiu XIAO Zhi-Feng CHEN Jun LI Yu-Ying ZHAO Ling MA Yan LIU Ya-Jun SHI Pei-Jun DAI Yun-Dai CHEN Department of Cardiology the 940th Hospital of Joint Logistics Support Force of Chinese PLALanzhouChina Department of Cardiology the First Medical Center of Chinese PLA General HospitalBeijingChina Department of Cardiology the 980th Hospital of Joint Logistics Support Force of Chinese PLAShijiazhuangChina Department of Infectious Diseases Huoshenshan HospitalWuhanChina

The outbreak and spread of coronavirus disease 2019(COVID-19)are not only a disaster of people’s life and health over the world,[1–3]but also the challenge for medical practitioner in clinical *** to many diagnostic instruments are not suitable or convenient to use any more in contagious ward considering the risk of cross infections,such as traditional stethoscope or electrocardiogram(ECG).In this scenarios,wireless and digital equipment are optimal choices for epidemic management in order to exert rapid diagnosis and disease ***,we reported a case of the patient suffering both COVID-19 and myocardial infarction,for which the tele-ECG and wireless stethoscope facilitated the accurate diagnosis and instant management.

关键词： Acute myocardial infarction Angina Coronavirus disease 2019 Electrocardiogram stethoscope

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Development of laser-based heart sound detection system

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Journal of Biomedical Science and Engineering 2012年第1期5卷 34-37页

作者： Jing Bai Girum Sileshi Glenn Nordehn Stanley Burns Lorentz Wittmers 不详

In this paper, we demonstrate the prototype of a new stethoscope using laser technology to make the heart-beat signal “visible”. This heartbeat detection technique could overcome the limitation of the acoustic stethoscope brought by the poor ability of human ear to hear low frequency heart sounds. This is important, as valuable information from sub-audio sounds is present at frequencies below the range of human hearing. Moreover, the diagnostic accuracy of the acoustic stethoscope is also very sensitive to noise from immediate environment. In the prototype of laser-based stethoscope, the heartbeat signal is correlated to the optical spot of a laser beam reflected from a thin mirror attached to the patient’s chest skin. The motion of the mirror with the chest skin is generated by the heart sounds. A linear optical sensor is applied to detect and record the motion of the optical spot, from which the heartbeat signal in time-domain is extracted. The heartbeat signal is then transformed to frequency domain through digital signal processing. Both time-domain and frequency-domain signals are analyzed in order to classify different type of heart murmurs. In the prototype of the laser-based stethoscope, we use a heart-sound box to simulate the chest of a human being. The heart-sounds collected from real patients are applied to activate the vibration of the heart-sound box. We also analyze different heart murmur patterns based on the time-domain and frequency-domain heartbeat signals acquired from the optical system.

关键词： Heart Sound Detection stethoscope Laser

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