Results 71 to 80 of about 1,690,508 (249)

Classification of Acoustic Tones and Cardiac Murmurs Based on Digital Signal Analysis Leveraging Machine Learning Methods

Computation
Heart murmurs are abnormal heart sounds that can indicate various heart diseases. Although traditional auscultation methods are effective, they depend more on specialists’ knowledge, making it difficult to make an accurate diagnosis.
Nataliya Shakhovska, Ivan Zagorodniy
doaj   +1 more source

Multimodal Imaging of Hypoxia, Metabolism and pH in Feline Sarcoma Using Hyperpolarized 13C MRI and PET

Advanced Science, EarlyView.
This work presents a clinically deployable simultaneous PET/MRI workflow which integrates hyperpolarized 13C imaging of metabolism and extracellular pH with [18F]FMISO PET to characterize hypoxia, acidosis, and metabolic reprogramming in feline sarcoma.
Martin Grashei, Tanja Groll, Stephanie Kahl, Silke Baer, Elisabeth Bliemsrieder, Frits H. A. van Heijster, Andre Wendlinger, Pascal Wodtke, Jorge Cabello, Susan Notohamiprodjo, Christian Lohrmann, Markus Schwaiger, Wolfgang A. Weber, Katja Steiger, Andrea Meyer‐Lindenberg, Johannes Hirschberger, Christine Baumgartner, Franz Schilling   +17 more
wiley   +1 more source

On the rythm of the sounds of the heart

ON THE RYTHM OF THE SOUNDS OF THE HEART On the rythm of the sounds of the heart (-
Donders, Franciscus C.
core   +1 more source

A Low-Cost, Portable, High-Throughput Wireless Sensor System for Phonocardiography Applications

Sensors, 2012
This paper presents the design and testing of a wireless sensor system developed using a Microchip PICDEM developer kit to acquire and monitor human heart sounds for phonocardiography applications.
Akkarapol Sa-ngasoongsong, Satish T. S. Bukkapatnam, Venkatesh Sarangan, Xinwei Cai, Jakkrit Kunthong   +4 more
doaj   +1 more source

In search of an SVD and QRcp Based Optimization Technique of ANN for Automatic Classification of Abnormal

, 2008
—Artificial Neural Network (ANN) has been extensively used for classification of heart sounds for its discriminative training ability and easy implementation. However, it suffers from overparameterization if the number of nodes is not chosen properly. In
Heart Sounds
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Heart sounds: auscultation for valvular heart disease

, 2018
Nurses are increasingly undertaking additional roles, and auscultation often forms part of the complete patient assessment. This compliments other clinical examination skills and consultation.
Angela Hall
core   +1 more source

Astrocytes Coordinate Neurovascular Coupling During Prolonged Sensory Demand via AQP4/TRPA1/BEST1/D‐Serine Signaling

Advanced Science, EarlyView.
Neuronal activation leads to astrocytic transient volume changes, activating transient receptor potential ankyrin 1 (TRPA1) channels, leading to Ca2+ influx. Activation of TRPA1 causes the release of D‐serine through BEST1. Finally, the augmented extracellular levels of D‐serine boost neuronal activity by binding GluN1‐containing NMDARs, leading to CBV
Kayoung Han, Minwoo Wendy Jang, Taeyoung Park, Ki Jung Kim, Victor James Drew, Sunpil Kim, Tai Young Kim, Mingu Gordon Park, Myeongju Kim, Seung Won Chung, Minah Suh, C. Justin Lee   +11 more
wiley   +1 more source

Development of a Low-Cost Wireless Phonocardiograph With a Bluetooth Headset under Resource-Limited Conditions

Medical Sciences, 2018
Commercially available digital stethoscopes can be used as a phonocardiograph to record heart sounds. However, procuring a costly digital stethoscope may not be possible under resource-limited conditions.
Himel Mondal, Shaikat Mondal, Koushik Saha   +2 more
doaj   +1 more source

Heart sounds using heart cycles

, 2016
What happens when Singapore goes towards an ageing population? Have you ever wondered what if one day, Singapore is short of healthcare professionals? With these two questions in hand, there is a demand in improving the medical technology in Singapore ...
Ng, Jia Long
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Audible and Subaudible Components of the First and Second Heart Sounds Using Phonocardiography and Seismocardiography [PDF]

, 2023
Cardiovascular disease continues to be a leading cause of death in the United States, and a source of financial strain on the healthcare system. This prompts the need for new methods of low-cost, noninvasive technologies for cardiac monitoring to improve
King, Daniella
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