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A new smartphone-based digital stethoscope featuring phonocardiography and electrocardiography in adult horses.
Vet Res Commun
November 2024
Department of Veterinary Sciences, University of Pisa, Pisa, Italy.
Smartphone-based technology is increasingly used in veterinary medicine as a complementary tool for cardiac auscultation and ECG recording. This prospective observational study evaluates a digital stethoscope (DS) that consists of simultaneous phonocardiographic and one-lead ECG recording (dECG) in adult horses, comparing it with auscultation using a conventional stethoscope (CS) and reference base-apex ECG (rECG). A total of 104 horses underwent cardiac auscultation using CSs and DSs to detect arrhythmias and murmurs.
View Article and Find Full Text PDFMachine Learning Algorithms for Processing and Classifying Unsegmented Phonocardiographic Signals: An Efficient Edge Computing Solution Suitable for Wearable Devices.
Sensors (Basel)
June 2024
Department of Innovation Engineering, University of Salento, 73100 Lecce, Italy.
The phonocardiogram (PCG) can be used as an affordable way to monitor heart conditions. This study proposes the training and testing of several classifiers based on SVMs (support vector machines), k-NN (k-Nearest Neighbor), and NNs (neural networks) to perform binary ("Normal"/"Pathologic") and multiclass ("Normal", "CAD" (coronary artery disease), "MVP" (mitral valve prolapse), and "Benign" (benign murmurs)) classification of PCG signals, without heart sound segmentation algorithms. Two datasets of 482 and 826 PCG signals from the Physionet/CinC 2016 dataset are used to train the binary and multiclass classifiers, respectively.
View Article and Find Full Text PDFEvaluation of a digital stethoscope for electrocardiographic recording in donkeys: Preliminary results.
J Equine Vet Sci
April 2024
Department of Veterinary Medicine and Animal Science, Università degli Studi di Milano, via dell'Università 6, Lodi, Italy, 26900. Electronic address:
The digital stethoscope (DS) is a cost-effective single-lead digital stethoscope that allows simultaneous electrocardiographic (ECG) and phonocardiographic recordings on a smartphone. Despite its application in small animals and horses, there are currently no studies on its use in donkeys. The aim of this study was to evaluate the use of a new smartphone-based DS device in recording ECG tracings in donkeys.
View Article and Find Full Text PDFA Wearable Multi-Sensor Array Enables the Recording of Heart Sounds in Homecare.
Sensors (Basel)
July 2023
Department of Electronics and Telecommunications and PoliToBIOMedLab, Politecnico di Torino, 10129 Torino, Italy.
The home monitoring of patients affected by chronic heart failure (CHF) is of key importance in preventing acute episodes. Nevertheless, no wearable technological solution exists to date. A possibility could be offered by Cardiac Time Intervals extracted from simultaneous recordings of electrocardiographic (ECG) and phonocardiographic (PCG) signals.
View Article and Find Full Text PDFEvaluation of a new smartphone-based digital stethoscope featuring phonocardiography and electrocardiography in dogs and cats.
Vet J
May 2023
Department of Veterinary Sciences, University of Pisa, via Livornese lato monte, San Piero a Grado, 56122 Pisa, Italy.
This study assessed a new smartphone-based digital stethoscope (DS) featuring simultaneous phonocardiographic and one-lead electrocardiogram (ECG) recording in dogs and cats. The audio files and ECG traces obtained by the device were compared with conventional auscultation and standard ECG. A total of 99 dogs and nine cats were prospectively included.
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