• 제목/요약/키워드: Heart sounds

검색결과 72건 처리시간 0.032초

Diaphragmatic Hernia in a Two-month Old Cat

  • Park, Sang-hun;Lee, Joo-Myoung
    • 한국임상수의학회지
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    • 제35권5호
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    • pp.237-239
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    • 2018
  • A 2 months old female Korean domestic shorthair cat weighing 1.2 kg was come to hospital because of respiratory discomfort and lethargy. Heart sounds was more intense and clear on the right side than the left. On radiographic views, loss of the normal diaphragm line, undistinguishable shadow of heart, shadow of gas-containing intestines could be observed in thoracic cavity. Diaphragmatic herniorrhaphy was performed by using propofol 8 mg/kg IV and isoflurane without any complication. On 7th day after the operation, almost all the clinical signs and radiographs including diaphragmatic line, cardiac silhouette, liver and small intestines were turned to normal.

고양이에서 발생한 Perinephric pseudocysts와 선천성 Peritoneo-pericardial Kiaphragmatic Hernia in Cat

  • 김상기
    • 한국임상수의학회지
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    • 제14권1호
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    • pp.6-10
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    • 1997
  • An 8-year old castrated domestic long-hair cat was presented with a two week history of abdominal distension. Physical examination revealed a non-painful, fluctuant, palpable mass in the right craniodorsal abdomen, and unilaterally muffled heart sounds on the right thorax. Routine clinico-pathological values were unremarkable apart from mild azotemia with a concurrent urine specific gravity of 1.031, which reflect a degree of renal dysfunction. Radiographic and ultrasound examinations of the thorax revealed the cardiac enlargement to be due to the congenital peritoneo-pericardial diaphragmatic hernia with liver occupying the right half of the pericardial sac. There was also a mild gypertrophy of the heart. Radiography and ultrasonography of the abdomen showed the mass to be composed of a large fluid filled cystic structures surrounding the right and left kidneys, and the kidneys themselves were of increased echogenecity. A diagnosis of perinephric pseudocysts was made. The patient responded well to the surgical procedures. Perinephric pseudocysts and peritoneo-pericardial diaphragmatic hernia in the cat are rare, and a case is described and the literature is reviewed in this report.

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심박수를 이용한 무선 디지털 청진 진단시스템 (Wireless Digital Stethoscope Diagnosis System using Heart Rate)

  • 박기영;이종하;조숙진;이철희;정의붕
    • 전자공학회논문지
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    • 제51권6호
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    • pp.237-243
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    • 2014
  • 환자의 흉부에서 들리는 심음은 아날로그청진기를 이용하여 들을 수 있었다. 그러나 심음은 듣는 의사에 따라 다르게 진단한다. 그러므로 오랜 경험과 노하우를 가진 의사들만이 주관적인 판단으로 환자의 이상 유 무를 판단할 수 있다. 본 논문에서는 심음의 심박수를 분석하여 환자의 상태를 진단 할 수 있는 무선디지털 청진 진단시스템에 대해 자세하게 서술한다. 그리고, 이 시스템을 통해 진단되는 심음에 대한 레벨교차율(LCR)과 질병의 관계를 보여준다. 또한, 심박수와 질병에 대해 새로운 개념의 진단시스템 환경을 제시하고 심박수의 레벨교차율은 질병에 따라 중요한 차이를 보여준다.

혈전이 발생한 인공판막의 판막음 스펙트럼 분석 (Sound Spectral Analysis of Valvular Clicks of Thrombosed Valve Prostheses)

  • 김상현;장병철;탁계래;허재만;김남현;강면식;조범구
    • 대한의용생체공학회:학술대회논문집
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    • 대한의용생체공학회 1994년도 춘계학술대회
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    • pp.105-108
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    • 1994
  • A comparative study was made of the valvular sounds produced by normal prosthetic valves with thrombosed prosthetic valves. Comparisons of the closing sound were made for the power frequency spectra associated with individual valves. We used periodogram approach to obtain the spectral characteristics of the valve. Spectral analysis system was tested in mock circulatory system by comparing normal valves with those produced by the same valves but having simulated thrombosis at the hinge of the valve. The heart sounds was recorded from two patients having normal mechanical valve and thrombosed mechanical valve. The estimated spectrum of the thrombosed mechanical valve displayed lower apparent peak frequency than that of the normal valve. The results showed that frequency spectra gave information pertinent to the valve malfunction. Sound spectral analysis is simple and alternative diagnostic tool for early detection of prosthetic valve mal function.

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Specifics of Speech Development of Children with Cerebral Palsy

  • Zavitrenko, Dolores;Rizhniak, Renat;Snisarenko, Iryna;Pasichnyk, Natalia;Babenko, Tetyana;Berezenko, Natalia
    • International Journal of Computer Science & Network Security
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    • 제22권11호
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    • pp.157-162
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    • 2022
  • Cerebral palsy is one of the most serious forms of disorders of the psychophysical development of children, which manifests itself in disturbances of motor functions, which are often combined with speech disorders, other complications of the formation of higher mental functions, and often with a decrease in intelligence. The article will discuss the speech disorder in children with cerebral palsy. Emphasis is placed on some important aspects, which should bear in mind, investigating the problem of specifics of speech development of children with cerebral palsy. In particular at the heart of speech disorders in the cerebral palsy is not only damage to certain structures of the brain, but also the later formation or underdevelopment of those parts of the cerebral cortex, which are of major importance in linguistic and mental activity. This is an ontogenetically young region of the cerebral cortex, which is most rapidly developing after birth (premotor, frontal, temmono-temporal). It is important to take into account, that children with cerebral palsy have disturbances of phonemic perception. Often, children do not distinguish between hearing sounds, cannot repeat component rows, allocate sounds in words. At dysarthria, there are violations of pronunciation of vowel and consonant sounds, tempo of speech, modulation of voice, breathing, phonation, as well as asynchronous breathing, alignment and articulation. As a result, we identified the main features and specifics of the speech development of children with cerebral palsy and described the conditions necessary for the full development of language. Language disturbances in children's cerebral palsy depend on the localization and severity of brain damage. Great importance in the mechanism of speech disorders has a pathology that limits the ability of movement and knowledge of the world.

소아 선천성 심질환 진단을 위한 성대 진동 분석 요소의 적용 (Application of Vocal Fold Vibration Analysis Parameter for Infant Congenital Heart Diseases Diagnosis)

  • 김봉현;조동욱
    • 한국산학기술학회논문지
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    • 제10권10호
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    • pp.2708-2714
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    • 2009
  • 언어를 통한 의사 전달 능력이 부족한 영아나 소아들은 울음으로서 자신의 몸의 상태나 요구하는 것에 대한 의사 표시를 행한다. 이 중 중요한 것이 소아 상태를 나타내는 것인데 언어 전달 능력이 없는 소아들의 질병은 진단 시기를 놓치거나 정확한 진단 결과를 내리기 어려운 문제가 존재한다. 이를 위해 본 연구에서는 소아의 울음소리를 분석하여 몸의 어느 부위가 문제가 있는지를 판단해 내는 소아 청진 시스템을 개발하였다. 특히 본 논문에서는 울음소리의 피치, 강도 및 스펙트럼 분석을 통해 소아 선천성 심질환자에 대한 질병 진단을 수행하였다. 이를 위해 각각의 분석 요소를 통해 정상적인 아이와 소아 선천성 심질환을 앓고 있는 아이에 대한 울음소리의 비교, 분석을 수행하였다. 이와 같은 방법을 통해 의사표현 능력이 부족한 소아를 대상으로 편리하게 소아 선천성 심질환을 진단할 수 있으며 임상 자료의 추가 실험을 통해 울음소리 기반의 재택형 진단 시스템을 구축할 수 있다.

뉴럴네트워크를 이용한 심음의 정상 비정상 분류 (Classificatin of Normal and Abnormal Heart Sounds Using Neural Network)

  • 윤희진
    • 융합정보논문지
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    • 제8권5호
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    • pp.131-135
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    • 2018
  • 현대인의 사망원인 2위를 차지하고 있는 심장병은 자각 증세 없이 갑자기 돌연사를 당할 수 있는 무서운 질병으로 예방이 중요하다. 심장병 중 대동맥판막 협착증을 판단하기 위해서 physioNet에서 제공하는 심음 데이터 중 S1과 S2 사이의 수축 심음 데이터를 이용하여 병명을 진단하였다. 대동맥 판막은 좌심실에서 대동맥으로 피가 유출되는 부위의 판막이다. 심장병 중 대동맥판막 협착증은 대동맥판막이 좁아져 좌심실의 수축 시 판막이 열리지 않는 질환이다. 위 논문에서는 정상인과 대동맥판막 협착증 환자를 합쳐 특징이 180개로 이루어진 3126개의 샘플 심음 데이터를 실험데이터로 사용하였다. 정상과 대동맥판막 협착증 환자를 구분하기 위해 가중퍼지신경망(NEWFM, Neural Network with Weighted Fuzzy Membership Function)이용하였다. 가중퍼지신경망의 특징선택 방법으로 가중치의 평균 방법을 이용하였으며, 분류 결과는 91.0871%의 정확도를 나타내었다.

A Study on the Tele-medicine Robot System with Face to Face Interaction

  • Shin, Dae Seob
    • 전기전자학회논문지
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    • 제24권1호
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    • pp.293-301
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    • 2020
  • Consultation with the patient and doctor is very important in the examination. However, if the consultation cannot be done directly, such as corona virus, it is difficult for the doctor to determine the patient's condition more accurately. Recently, an image counseling system has been developed based on the Internet, but in the case of heart disease, remote medical counseling cannot be performed because it is not possible to stethoscope the heart sounds remotely. In order to solve this problem, it is necessary to develop an interactive mobile robot capable of remote medical consultation, and a doctor and a patient should be able to set a planting sound during consultation and transmit it in real time. In this paper, we developed a robot that can remotely control a medical counseling robot to move to a hospital room where patients are hospitalized, and to consult a patient in the room remotely from a doctor's office. A remote medical imaging stethoscope system for real-time heart sound transmission is presented. The proposed system is a kind of P2P communication that transmits video information, audio information, and control signal independently through webRTC platform, so that there is no data loss. Consults and sees doctors in real time and finds it more effective than traditional methods for patient security. The system implemented in this paper will be able to perform remote medical care in the place where the spread of diseases between humans like the recent corona 19 as well as the remote medical care of heart disease patients in the future.

Development of a Sleep-driving Accident Prevention System based on pulse

  • Bae, Seung-Woo;Seo, Jung-Hwa
    • 한국인공지능학회지
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    • 제6권1호
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    • pp.11-15
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    • 2018
  • The purpose of this study is to develop a pulsatile drowsiness detection system that can compensate the limitations of existing camera - based or breathing pressure sensor based Drowsiness driving prevention systems. A heart rate sensor mounted on the driver's finger and an alarm system that sounds when drowsiness is detected. The heart rate sensor was used to measure pulse changes in the wrist, and an alarm system based on the Arduino, which works in conjunction with the laptop, generates an audible alarm in the event of drowsiness. In this paper, we assume that the pulse rate of the drowsy state is 60 ~ 65 times / minute, which is the middle between the awake state and the sleep state. As a result of the experiment, the alarm sounded when the driver's pulse rate was in the drowsy pulse rate range. Based on these experiments, the drowsiness detection system was able to detect the drowsiness of the driver successfully in real time. A more effective drowsiness prevention system can be developed in the future by incorporating the results of the present study on a pulse-based drowsiness prevention system in an existing drowsiness prevention system.

긍정 및 부정감성 음향이 감성스타일이 서로 다른 집단의 심장박동율변동성에 미치는 영향 (Effects of Positive and Negative Affective Sounds on the Heart Rate Variability in different Affective Styles)

  • 김원식;김교헌;조문재;이상태
    • 한국감성과학회:학술대회논문집
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    • 한국감성과학회 2002년도 춘계학술대회 논문집
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    • pp.314-319
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    • 2002
  • To inspect how the different sensitivities in BAS (or BIS) moderate on the HRV pattern stimulated by positive or negative affective sound, we measured the electrocardiogram (ECG) of 25 students, consisted of 4 groups depending on the BAS (or BIS) sensitivity, while listening music or being exposed to noise. The power spectral density of HRV was derived from the ECG, and the power of HRV was calculated for 3 major frequency ranges (low frequency [LF], medium frequency [MF], and high frequency [HF]). We found that the index MF/(LF+HF), while listening music, was 20 % higher in the individuals with a low BIS but high BAS than in the individuals with a low sensitivity In both BIS and BAS. Moreover, in the former group this index was 30 % higher while listening music than while being exposed to noise. From these results we suggest that individuals with a low BIS but high BAS be more sensitive to positive affective stimuli than other groups, and the index MF/(LF+HF) be applicable to evaluate positive affects.

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