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https://www.readbyqxmd.com/read/28227933/classification-of-severity-of-mitral-regurgitation-patients-using-multifractal-analysis
#1
Rijil Thomas, Ling Lieng Hsi, Soh Cheong Boon, Erry Gunawan, Rijil Thomas, Ling Lieng Hsi, Soh Cheong Boon, Erry Gunawan, Soh Cheong Boon, Erry Gunawan, Ling Lieng Hsi
Owing to its efficiency and cost effectiveness, auscultation using a stethoscope is the primary diagnosis method preferred by most medical examiners for cardiovascular disease. Phonocardiography (PCG) is the next level of auscultation and an effective analysis technique in cardiology. This paper presents a method to quantify Mitral Regurgitation (MR) using PCG. MR is one of the most common cardiovascular diseases associated with a defect in mitral valve. We analyzed the multifractal nature of heart sounds with murmur followed by classification and clustering using Hurst exponents...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227680/a-mobile-platform-for-automated-screening-of-asthma-and-chronic-obstructive-pulmonary-disease
#2
Daniel B Chamberlain, Rahul Kodgule, Richard Ribon Fletcher, Daniel B Chamberlain, Rahul Kodgule, Richard Ribon Fletcher, Daniel B Chamberlain, Richard Ribon Fletcher, Rahul Kodgule
Chronic Obstructive Pulmonary Disease (COPD) and asthma each represent a large proportion of the global disease burden; COPD is the third leading cause of death worldwide and asthma is one of the most prevalent chronic diseases, afflicting over 300 million people. Much of this burden is concentrated in the developing world, where patients lack access to physicians trained in the diagnosis of pulmonary disease. As a result, these patients experience high rates of underdiagnosis and misdiagnosis. To address this need, we present a mobile platform capable of screening for Asthma and COPD...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227481/identi-wheez-a-device-for-in-home-diagnosis-of-asthma
#3
Guy Satat, Krithika Ramchander, Ramesh Raskar, Guy Satat, Krithika Ramchander, Ramesh Raskar, Guy Satat, Ramesh Raskar, Krithika Ramchander
Asthma is the most common chronic illness among children. The skills required to diagnose it make it an even greater concern. In this work, we present a child-friendly wearable device, which allows in-home diagnosis of asthma. The device acquires simultaneous measurements from multiple stethoscopes. The recordings are then sent to a specialist who uses assistive diagnosis algorithms that enable auscultation (listening to lung sounds with a stethoscope) at any location in the lungs volume by sound refocusing...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227479/a-low-cost-3-d-printed-stethoscope-connected-to-a-smartphone
#4
Carlos Aguilera-Astudillo, Marx Chavez-Campos, Alan Gonzalez-Suarez, Jose L Garcia-Cordero, Carlos Aguilera-Astudillo, Marx Chavez-Campos, Alan Gonzalez-Suarez, Jose L Garcia-Cordero, Jose L Garcia-Cordero, Alan Gonzalez-Suarez, Marx Chavez-Campos
We demonstrate the fabrication of a digital stethoscope using a 3D printer and commercial off-the-shelf electronics. A chestpiece consists of an electret microphone embedded into the drum of a 3D printed chestpiece. An electronic dongle amplifies the signal from the microphone and reduces any external noise. It also adjusts the signal to the voltages accepted by the smartphones headset jack. A graphical user interface programmed in Android displays the signals processed by the dongle. The application also saves the processed signal and sends it to a physician...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28226619/application-of-semi-supervised-deep-learning-to-lung-sound-analysis
#5
Daniel Chamberlain, Rahul Kodgule, Daniela Ganelin, Vivek Miglani, Richard Ribon Fletcher, Daniel Chamberlain, Rahul Kodgule, Daniela Ganelin, Vivek Miglani, Richard Ribon Fletcher, Vivek Miglani, Daniel Chamberlain, Richard Ribon Fletcher, Rahul Kodgule, Daniela Ganelin
The analysis of lung sounds, collected through auscultation, is a fundamental component of pulmonary disease diagnostics for primary care and general patient monitoring for telemedicine. Despite advances in computation and algorithms, the goal of automated lung sound identification and classification has remained elusive. Over the past 40 years, published work in this field has demonstrated only limited success in identifying lung sounds, with most published studies using only a small numbers of patients (typically N<;20) and usually limited to a single type of lung sound...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28226493/towards-an-unsupervised-device-for-the-diagnosis-of-childhood-pneumonia-in-low-resource-settings-automatic-segmentation-of-respiratory-sounds
#6
J Sola, F Braun, E Muntane, C Verjus, M Bertschi, F Hugon, S Manzano, M Benissa, A Gervaix, J Sola, F Braun, E Muntane, C Verjus, M Bertschi, F Hugon, S Manzano, M Benissa, A Gervaix, F Hugon, C Verjus, A Gervaix, S Manzano, M Bertschi, E Muntane, M Benissa, J Sola, F Braun
Pneumonia remains the worldwide leading cause of children mortality under the age of five, with every year 1.4 million deaths. Unfortunately, in low resource settings, very limited diagnostic support aids are provided to point-of-care practitioners. Current UNICEF/WHO case management algorithm relies on the use of a chronometer to manually count breath rates on pediatric patients: there is thus a major need for more sophisticated tools to diagnose pneumonia that increase sensitivity and specificity of breath-rate-based algorithms...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28225539/cuba-s-family-doctor-and-nurse-teams-a-day-in-the-life
#7
Conner Gorry
Nurse Sarait Guarat has Felipe's clinical history out of the file cabinet and on Dr Martha Diaz's desk before he's even through the door. Not that Dr Díaz needs it: Having served 26 years at Consultorio (Family Doctor-and-Nurse Office) #17 on a leafy street in Havana's Vedado neighborhood, she knows each of her patients by name and their health status essentially by heart. After greeting 91-year old Felipe with the customary kiss on the cheek, Dr Díaz gets down to business, asking after his family, checking up on his diabetes and inquiring about the reason for his visit...
January 2017: MEDICC Review
https://www.readbyqxmd.com/read/28199732/a-systematic-review-of-novel-technology-for-monitoring-infant-and-newborn-heart-rate
#8
REVIEW
Ajay C Kevat, Denise Vr Bullen, Peter G Davis, C Omar F Kamlin
: Heart rate is a vital sign for assessing the need for resuscitation. We performed a systematic review of studies assessing novel methods of measuring heart rate in newborns and infants in the neonatal unit. Two investigators completed independent literature searches. Identified papers were independently evaluated and relevant data were extracted and analysed. CONCLUSION: This systematic review identified seven new technologies, including camera-based photoplethysmography, reflectance pulse oximetry, laser Doppler methods, capacitive sensors, piezoelectric sensors, electromyography, and a digital stethoscope...
February 15, 2017: Acta Paediatrica
https://www.readbyqxmd.com/read/28150025/initial-field-test-of-a-cloud-based-cardiac-auscultation-system-to-determine-murmur-etiology-in-rural-china
#9
Lee Pyles, Pouya Hemmati, J Pan, Xiaoju Yu, Ke Liu, Jing Wang, Andreas Tsakistos, Bistra Zheleva, Weiguang Shao, Quan Ni
A system for collection, distribution, and long distant, asynchronous interpretation of cardiac auscultation has been developed and field-tested in rural China. We initiated a proof-of-concept test as a critical component of design of a system to allow rural physicians with little experience in evaluation of congenital heart disease (CHD) to obtain assistance in diagnosis and management of children with significant heart disease. The project tested the hypothesis that acceptable screening of heart murmurs could be accomplished using a digital stethoscope and internet cloud transmittal to deliver phonocardiograms to an experienced observer...
February 2, 2017: Pediatric Cardiology
https://www.readbyqxmd.com/read/28138529/epidermal-mechano-acoustic-sensing-electronics-for-cardiovascular-diagnostics-and-human-machine-interfaces
#10
Yuhao Liu, James J S Norton, Raza Qazi, Zhanan Zou, Kaitlyn R Ammann, Hank Liu, Lingqing Yan, Phat L Tran, Kyung-In Jang, Jung Woo Lee, Douglas Zhang, Kristopher A Kilian, Sung Hee Jung, Timothy Bretl, Jianliang Xiao, Marvin J Slepian, Yonggang Huang, Jae-Woong Jeong, John A Rogers
Physiological mechano-acoustic signals, often with frequencies and intensities that are beyond those associated with the audible range, provide information of great clinical utility. Stethoscopes and digital accelerometers in conventional packages can capture some relevant data, but neither is suitable for use in a continuous, wearable mode, and both have shortcomings associated with mechanical transduction of signals through the skin. We report a soft, conformal class of device configured specifically for mechano-acoustic recording from the skin, capable of being used on nearly any part of the body, in forms that maximize detectable signals and allow for multimodal operation, such as electrophysiological recording...
November 2016: Science Advances
https://www.readbyqxmd.com/read/28134680/patient-reported-outcome-measures-a-stethoscope-for-the-patient-history
#11
Cornelia L Griggs, Jeffrey C Schneider, Lewis E Kazis, Colleen M Ryan
No abstract text is available yet for this article.
January 27, 2017: Annals of Surgery
https://www.readbyqxmd.com/read/28113235/s1-and-s2-heart-sound-recognition-using-deep-neural-networks
#12
Tien-En Chen, Shih-I Yang, Li-Ting Ho, Kun-Hsi Tsai, Yu-Hsuan Chen, Yun-Fan Chang, Ying-Hui Lai, Syu-Siang Wang, Yu Tsao, Chau-Chung Wu
OBJECTIVE: This study focuses on the first (S1) and sec-ond (S2) heart sound recognition based only on acoustic charac-teristics; the assumptions of the individual durations of S1 and S2 and time intervals of S1-S2 and S2-S1 are not involved in the recognition process. The main objective is to investigate whether reliable S1 and S2 recognition performance can still be attained under situations where the duration and interval information might not be accessible. METHODS: A deep neural network (DNN) method is proposed for recognizing S1 and S2 heart sounds...
April 27, 2016: IEEE Transactions on Bio-medical Engineering
https://www.readbyqxmd.com/read/28113191/s1-and-s2-heart-sound-recognition-using-deep-neural-networks
#13
Tien-En Chen, Shih-I Yang, Li-Ting Ho, Kun-Hsi Tsai, Yu-Hsuan Chen, Yun-Fan Chang, Ying-Hui Lai, Syu-Siang Wang, Yu Tsao, Chau-Chung Wu
OBJECTIVE:  This study focuses on the first (S1) and second (S2) heart sound recognition based only on acoustic characteristics; the assumptions of the individual durations of S1 and S2 and time intervals of S1-S2 and S2-S1 are not involved in the recognition process. The main objective is to investigate whether reliable S1 and S2 recognition performance can still be attained under situations where the duration and interval information might not be accessible. METHODS:  A deep neural network (DNN) method is proposed for recognizing S1 and S2 heart sounds...
February 2017: IEEE Transactions on Bio-medical Engineering
https://www.readbyqxmd.com/read/28036308/early-detection-and-control-of-an-acinetobacter-baumannii-multi-resistant-outbreak-in-a-hospital-in-quito-ecuador
#14
Monica Cartelle Gestal, Jeannete Zurita, Gabriela Gualpa, Cecibel Gonzalez, Ariane Paz Y Mino
INTRODUCTION: Acinetobacter baumannii (ABA) is an important opportunistic pathogen associated with high mortality rates in intensive care units (ICUs). An outbreak in the ICU of a secondary-level hospital in Quito, Ecuador, occurred during April and May 2015 and was successfully controlled. METHODOLOGY: Enterobacterial repetitive intergenic consensus polymerase chain reaction (ERIC-PCR) and repetitive element palindromic (REP)-PCR was conducted on all isolates recovered from patients, as well as environmental samples, to confirm the presence of an outbreak...
December 30, 2016: Journal of Infection in Developing Countries
https://www.readbyqxmd.com/read/28009259/principles-of-systems-biology-no-12
#15
(no author information available yet)
This month: Plants take center stage with fascinating insights into disease susceptibility and engineered pathways for photosynthesis. Also, a wearable stethoscope, new noncanonical miRNA targeting rules, Hsf1, and transcription.
December 21, 2016: Cell Systems
https://www.readbyqxmd.com/read/27968830/availability-and-use-of-primary-care-facilities-in-china-a-nationwide-representative-survey
#16
William C W Wong, Sunfang Jiang, Jason Ong, Minghui Peng, Eric Wan, Zhanshu Zhu, Cindy L K Lam, Michael Kidd, Martin Roland
BACKGROUND: China introduced a national policy to develop primary care in 2009, with 8669 community health centres (CHCs) established by 2014, employing more than 300 000 staff. However, against a background of the "barefoot doctor" legacy in rural China, mistrust of doctors, and over-reliance on specialist care, these facilities have been underused. This study aimed to evaluate the current quality of CHCs in China, including the organisation and infrastructure, as well as the use and training of the health-care professionals within primary care...
October 2016: Lancet
https://www.readbyqxmd.com/read/27959303/ethics-in-everyday-practice-pick-up-your-stethoscope
#17
Cynda Hylton Rushton, Kathleen Turner
No abstract text is available yet for this article.
October 2016: AACN Advanced Critical Care
https://www.readbyqxmd.com/read/27923938/computerized-respiratory-sounds-novel-outcomes-for-pulmonary-rehabilitation-in-copd
#18
Cristina Jácome, Alda Marques
BACKGROUND: Computerized respiratory sounds are a simple and noninvasive measure to assess lung function. Nevertheless, their potential to detect changes after pulmonary rehabilitation (PR) is unknown and needs clarification if respiratory acoustics are to be used in clinical practice. Thus, this study investigated the short- and mid-term effects of PR on computerized respiratory sounds in subjects with COPD. METHODS: Forty-one subjects with COPD completed a 12-week PR program and a 3-month follow-up...
February 2017: Respiratory Care
https://www.readbyqxmd.com/read/27892612/the-prevalence-of-depressive-symptoms-among-older-patients-with-hypertension-in-rural-china
#19
Jiang Xue, Shulin Chen, Hillary R Bogner, Wan Tang, Lydia Li, Yeates Conwell
OBJECTIVE: The comorbidity of depression and hypertension (HTN) is common and complicates the management of both conditions. This study investigated the prevalence of depressive symptoms among older patients with HTN in rural China and explored the relationship between the two conditions. METHODS: The baseline data of older patients diagnosed with HTN included in the depression/HTN in Chinese Older Adults-Collaborations for Health Study were used for the analysis...
November 28, 2016: International Journal of Geriatric Psychiatry
https://www.readbyqxmd.com/read/27845989/the-value-of-the-stethoscope-in-the-era-of-ultrasound
#20
Mitchell L Jablons
No abstract text is available yet for this article.
December 2016: Anesthesiology
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