- Heart Sound Classification Using Variable Number of States in Hidden Markov Model Considering Characteristics of the Signal
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Chung YJ
- KMID: 2211309
- J Korean Soc Med Inform.
- 2008 Jun;14(2):179-187.
Hidden Markov model (HMM) is known to be one of the most powerful methods in the acoustic modeling of heart sound signals. Conventionally, we usually use a fixed number of... -
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- The Heart Sound Data Analysis, Management System using the Wireless Stethoscope
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Shin JW, Lee JS, Yoon YR
- KMID: 2210382
- J Korean Soc Med Inform.
- 2001 Jun;7(2):105-111.
This paper is about the system using a wireless stethoscope to analysis the FFT and the time-frequency for a heart sound and to manage the collected data for a web-based... -
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- Temporal Processing in the Auditory System
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Park MH
- KMID: 1978229
- Korean J Otorhinolaryngol-Head Neck Surg.
- 2011 Sep;54(9):585-591.
- doi: 10.3342/kjorl-hns.2011.54.9.585
The auditory system recognized sound waves. The sound waves are longitudinal waves in the air, where the pressure varies in time. It is distinguished as the rapid pressure changes, referred... -
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- Does the Layman Understand "the Whistling Sounds when Breathing out" as Real Wheezing?
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Jang SH, Jung SH, Eom KS, Shin T, Kim CH, Bahn JW, Kim DG, Park MJ, Hyun IG, Jung KS
- KMID: 2318410
- Tuberc Respir Dis.
- 2003 Apr;54(4):378-385.
BACKGROUND: Wheezing is an important clue in the diagnosis of asthma. Previously, a Korean National asthma survey used a written questionnaire, containing the question, "Have you ever experienced a breathing... -
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- Wireless Ausculate Educational System
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Shin JW, Lee JS, Cha MS, Yoon YR
- KMID: 2099644
- J Korean Soc Med Inform.
- 2002 Mar;8(1):47-54.
This research is about embodiment of system to support auscultation education more effectively. Cardiac sound data that is stored to PC made many learner deliver by wireless system. For this... -
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- Classification of Continuous Heart Sound Signals Using the Ergodic Hidden Markov Model
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Kim HK, Chung YJ
- KMID: 2330758
- J Korean Soc Med Inform.
- 2007 Mar;13(1):35-41.
Recently, hidden Markov models (HMMs) have been found to be very effective in classifying heart sound signals. For the classification based on the HMM, the continuous cyclic heart sound signal... -
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- Visualization and Quantitative Analysis of Bulbar Palsy and Its Progression Using Sound Spectrography: A case report
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Kim YC, Seo JH, Kim HG, Kim YH
- KMID: 2323184
- J Korean Acad Rehabil Med.
- 1999 Feb;23(1):186-191.
Distortion of vowels in dysarthria associated with amyotrophic lateral sclerosis can be detected at the perceptual, physiological, and acoustical levels of analysis. Sound spectrography was used to analyse the formants... -
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- Sound Localization in Subjects with a Unilateral Hearing Loss according to Hearing Loss
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Ham HS, Song SY, Park MS
- KMID: 2115395
- Korean J Otolaryngol-Head Neck Surg.
- 1999 Aug;42(8):961-966.
BACKGROUND AND OBJECTIVES: Sound localization in subjects with normal hearing is done by recognition of interaural difference of time, intensity and phase of sound source. Individuals with unilateral hearing losses,... -
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- Comprehension of Lung Sounds for Family Medicine Residents in Daegu, Gyeongbuk
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Park JJ, Lee DW, Park KH, Jeong HS, Lee SH, Yun ZY
- KMID: 2304419
- Korean J Fam Med.
- 2010 Oct;31(10):793-797.
- doi: 10.4082/kjfm.2010.31.10.793
BACKGROUND: Understanding lung sound is important physical examination of chest. We studied to identify the state of the understanding, the education and the self-learning experience for lung sound's interpretation during... -
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- Effect of multimedia on the self learning of lung sound in medical students
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Park MJ, Lee MG, Kim DK, Mo EK, Hyun IG, Jung KS
- KMID: 2306372
- Korean J Med.
- 1998 Jun;54(6):827-832.
BACKGROUND: Auscultation of lung sound is a fundamental component of physical examination of respiratory disease. It is difficult to teach lung sound to the medical student because of the observer... -
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- Spectral analysis of heart valve sound for detection of prosthetic heart valve diseases
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Kim SH, Lee HJ, Huh JM, Chang BC
- KMID: 711562
- Yonsei Med J.
- 1998 Aug;39(4):302-308.
- doi: 10.3349/ymj.1998.39.4.302
The spectral analysis of heart valve sound is a noninvasive diagnostic method known to be useful in evaluating the state of the heart valve function. This may provide early detection... -
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- Current Developments and Challenge of Implantable Bone Conduction Hearing Aids
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Kim S, Han W
- KMID: 2436428
- Korean J Otorhinolaryngol-Head Neck Surg.
- 2018 Feb;61(2):67-75.
- doi: 10.3342/kjorl-hns.2017.00864
It is acknowledged that implantable bone conduction hearing aids such as a bone anchored hearing aid provide benefit and satisfaction to patients with unilateral hearing loss in terms of sound... -
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- Effect of Attractor Construction Methods to Fractal Dimension for Heart Sound Analysis
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Lee Y, Kim H, Kim T
- KMID: 2330316
- J Korean Soc Med Inform.
- 2004 Jun;10(2):191-200.
Strange attractor can be constructed from time series data such as heart sound. In the areas of the recognition and diagnosis of abnormal heart sounds, signal presentation method is very... -
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- Analysis of Snoring Sound for Predicting Laser-Assisted Uvulopalatoplasty Results
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Ahn CM, Woo WK, Seo MC
- KMID: 2276084
- Korean J Otolaryngol-Head Neck Surg.
- 2004 Jan;47(1):47-51.
BACKGROUND AND OBJECTIVES: Laser-assisted uvulopalatoplasty is well established and relatively successful operation in the treatment of snoring and obstructive sleep apnea (OSA). But, there have been no reports about snoring... -
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- In vitro sound spectral analysis of prosthetic heart valves by mock circulatory system
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Kim SH, Chang BC, Tack G, Huh JM, Kang MS, Cho BK, Park YH
- KMID: 1728911
- Yonsei Med J.
- 1994 Sep;35(3):271-278.
- doi: 10.3349/ymj.1994.35.3.271
A comparative study was made of the sounds produced by normal prosthetic valves (St. Jude Medical, Bjork-Shiley, polymer) with those produced by the same valves but having simulated thrombosis at... -
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- Simple Method of Speech Evaluation in the Korean Patient with Cleft Palate
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Kim JH, Bae YC, Hwang SM, Jeon JY
- KMID: 2203987
- J Korean Soc Plast Reconstr Surg.
- 1999 Sep;26(5):858-865.
In analyzing the postoperative results or evaluating the velopharyngeal incompetence after palatoplasty, speech evaluation is the inevitable factor. However, a standardized method for evaluating the speech problem in Korean cleft... -
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- Computed Tomography of Catamenial Hemoptysis
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Kim IH, Jang DS, Park TB, Koh KK, Cho CH, Park CS, Lee CH
- KMID: 2317886
- Tuberc Respir Dis.
- 1994 Oct;41(5):558-561.
A 41-year-old female was admitted to our hospital for self-audible wheezing sound and dyspnea. On past history, she has been suffered from chest discomfort, and treated recurrently by other hospitals.... -
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- A Case of Non-Traumatic Tracheal Stenosis
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Kim KH, Park MH, Lee YS, Ohn JS, Lee MS, Cho DI, Rhu NS
- KMID: 2317885
- Tuberc Respir Dis.
- 1994 Oct;41(5):552-557.
A 41-year-old female was admitted to our hospital for self-audible wheezing sound and dyspnea. On past history, she has been suffered from chest discomfort, and treated recurrently by other hospitals.... -
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- Decreased heart sound in a healthy newborn: Spontaneous multiseptated cystic pneumomediastinum with delayed respiratory distress
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Choe YJ, Kim ES, Kim EK, Kim HS, Chun JE, Kim WS, Kim IO, Choi JH
- KMID: 2281374
- Korean J Pediatr.
- 2010 Feb;53(2):244-247.
- doi: 10.3345/kjp.2010.53.2.244
Spontaneous pneumomediastinum in the absence of predisposing risk factors has been rarely observed in full-term neonates. A 3-day-old neonate, delivered vaginally at term without any perinatal complications or signs of... -
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- Acoustic streaming for assessing adnexal cysts
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Lee CJ, Kim SH, Kim JH, Park MS, Song JB
- KMID: 2077532
- Korean J Obstet Gynecol.
- 2005 Dec;48(12):2955-2960.
OBJECTIVE: Acoustic streaming is movement of fluid or air due to a sound field. It is caused by a transfer of momentum form sound waves, and results in movement in... -
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