Results 41 to 50 of about 128,389 (261)
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
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Entropy, 2016 Simultaneously analyzing multivariate time series provides an insight into underlying interaction mechanisms of cardiovascular system and has recently become an increasing focus of interest.
Lina Zhao +3 more
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Advanced Healthcare Materials, EarlyView.Gonzalez Martinez and collaborators develop a strategy to formulate high performance GelMA‐based bioinks with low solids contents. The resulting bioinks enable 3D bioprinting at 37 °C of high‐fidelity structures with tunable mechanical properties that support high cell viability and function.
David A. González‐Martínez +8 more
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Left Ventricular Pressure Estimation Using Machine Learning-Based Heart Sound Classification
Frontiers in Cardiovascular Medicine, 2022 ObjectiveA method to estimate absolute left ventricular (LV) pressure and its maximum rate of rise (LV dP/dtmax) from epicardial accelerometer data and machine learning is proposed.MethodsFive acute experiments were performed on pigs.
Philip Westphal +9 more
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Stability of Medicinal Nanoemulsions to Spaceflight: Insights From the StarMed Experiment
Advanced Healthcare Materials, EarlyView.Chitosan‐coated melatonin nanoemulsions (MN) recovered from a sounding rocket mission preserve droplet size and controlled‐release behavior, whereas uncoated nanoemulsions show ageing‐driven droplet growth and increased accessible drug fraction. Simple polymer coatings thus enhance the flight resilience of liquid space medicines under cumulative launch
Modupe Adebowale +4 more
wiley +1 more source
Real-Time Multi-Level Neonatal Heart and Lung Sound Quality Assessment for Telehealth Applications
IEEE Access, 2022 In this study, a new method is proposed to assess heart and lung signal quality objectively and automatically on a 5-level scale in real-time, and to assess the effect of signal quality on vital sign estimation. A total of 207 10 s long chest sounds were
E. Grooby +10 more
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REDUPLICATION OF HEART SOUNDS. [PDF]
JAMA: The Journal of the American Medical Association, 1906 Reduplication means doubling; that is, the sounds still strike the ear, not as a single tone, but as a double tone. Both the first and the second sounds may be reduplicated. The appearance of extra beats is a totally distinct phenomenon. This subject has received scanty attention. Potain, in a study of 500 hearts, makes the first mention in literature.
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Advanced Healthcare Materials, EarlyView.A porous parylene‐coated electrode loaded with dexamethasone was developed to reduce inflammation after cochlear implantation. In guinea pigs, the device provided sustained drug release, maintained biocompatibility, improved auditory brainstem response thresholds, and reduced inflammatory cell infiltration and TNF‐α expression.
Chi‐Chieh Chang +11 more
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Multi-Subject Remote Heart Sound Monitoring Using mmWave MIMO RADAR
IEEE Journal of MicrowavesThis work presents a novel non-contact heart sound monitoring approach using millimeter-wave RADAR technology. The proposed system enables simultaneous heart sound acquisition from multiple subjects, offering a contactless and efficient alternative to ...
Isabella Lenz +3 more
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Mitral Valve Regurgitation Murmurs—Insights from Hemoacoustic Computational Modeling
Fluids, 2022 Mitral regurgitation (MR) is the leakage of blood from the left ventricle into the left atrium during systole through a mitral valve that does not close fully. A systolic murmur is produced by MR and can be used to diagnose this disease.
Ziyu Wang, Jung Hee Seo, Rajat Mittal
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