An Ultra-Low Power Subband-Based Electronic Stethoscope

Johnson, J. B.; Hermann, David; Witter, M. C.; Cornu, Etienne; Brennan, Robert L.; Dufaux, Alain

doi:10.1109/icassp.2006.1660864

Cited by 11 publications

(2 citation statements)

References 6 publications

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“…In the literature, electronic stethoscope had been implemented by using general-purpose microcontrollers (MCUs) [ 2 – 5 , 9 ], DPS chips [ 1 , 7 , 8 ], or even ASIC chips [ 6 ]. We chose to build the proposed prototype of ALE circuit using FPGAs instead.…”

Section: Methodsmentioning

confidence: 99%

Performance Evaluation of Heart Sound Cancellation in FPGA Hardware Implementation for Electronic Stethoscope

Chao

Maneetien

Wang

et al. 2014

The Scientific World Journal

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This paper presents the design and evaluation of the hardware circuit for electronic stethoscopes with heart sound cancellation capabilities using field programmable gate arrays (FPGAs). The adaptive line enhancer (ALE) was adopted as the filtering methodology to reduce heart sound attributes from the breath sounds obtained via the electronic stethoscope pickup. FPGAs were utilized to implement the ALE functions in hardware to achieve near real-time breath sound processing. We believe that such an implementation is unprecedented and crucial toward a truly useful, standalone medical device in outpatient clinic settings. The implementation evaluation with one Altera cyclone II–EP2C70F89 shows that the proposed ALE used 45% resources of the chip. Experiments with the proposed prototype were made using DE2-70 emulation board with recorded body signals obtained from online medical archives. Clear suppressions were observed in our experiments from both the frequency domain and time domain perspectives.

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Section: Methodsmentioning

confidence: 99%

Performance Evaluation of Heart Sound Cancellation in FPGA Hardware Implementation for Electronic Stethoscope

Chao

Maneetien

Wang

et al. 2014

The Scientific World Journal

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“…The communication of ECG signals has been a matter of study for many years. The work done in [18] is great compilation of all the different standards used in ECG communication. There are many different formats created depending on the needs.…”

Section: Related Workmentioning

confidence: 99%

Wireless ECG and PCG Portable Telemedicine Kit for Rural Areas of Colombia

Jimeno¹,

Hoz

Wilches³

2014

invinning

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Telemedicine is always a popular topic thanks to the constants advancements of technology. The focus on development of new devices has been mainly on decreasing size to increase portability. Our research focused on improving functionality but not giving up on portability and cost. In this paper we are presenting the first prototype device that measures 4-leads electrocardiogram (ECG) and phonocardiogram (PCG) signals with low cost, high portability and wireless connectivity features in mind. We designed and developed a prototype that measures ECG using a standard ECG cable; we designed and developed a digital stethoscope prototype and also the necessary hardware for both medical signals to be transmitted through Bluetooth to a computer. We present here the hardware design, a new communication protocol for transmission of both signals from the device to the computer, and the software system to enable remote consultations. We designed the prototype with the main purpose of using low cost parts without sacrificing functionality, with the purpose of using it in remote zones of the Caribbean coast of Colombia. We show open issues and prepare a field implementation of the kit in the target zone.

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Design and Implementation of a Digital Auscultation System

Lin

Chan

et al. 2010

Lecture Notes in Computer Science

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An Ultra-Low Power Subband-Based Electronic Stethoscope

Cited by 11 publications

References 6 publications

Performance Evaluation of Heart Sound Cancellation in FPGA Hardware Implementation for Electronic Stethoscope

Performance Evaluation of Heart Sound Cancellation in FPGA Hardware Implementation for Electronic Stethoscope

Wireless ECG and PCG Portable Telemedicine Kit for Rural Areas of Colombia

Design and Implementation of a Digital Auscultation System

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