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Related Concept Videos

Imaging Studies II: Ultrasonography01:24

Imaging Studies II: Ultrasonography

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IntroductionUltrasonography, or renal ultrasound, is a noninvasive medical imaging technique that uses high-frequency sound waves to visualize the kidneys, ureters, bladder, and surrounding tissues.Indications for Urinary System UltrasonographyUrinary system ultrasonography is indicated in various clinical scenarios, such as:Kidney Stones (Urolithiasis): To detect and monitor the size and presence of kidney or urinary tract stones.Hydronephrosis: To assess the dilation of the renal pelvis and...
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Related Experiment Video

Updated: Jan 9, 2026

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An Analog Front-End for Bladder Ultrasound Monitoring: Achieving 75% Reduction in RX Power Consumption through Power

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    Summary
    This summary is machine-generated.

    This study introduces a new algorithm, Power Gating for Intra-Image Sparsity (PGIIS), to reduce power consumption in wearable ultrasound devices. PGIIS significantly cuts receiver power, extending battery life for continuous bladder monitoring.

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    Area of Science:

    • Biomedical Engineering
    • Medical Imaging Technology
    • Low-Power Electronics

    Background:

    • Continuous bladder volume monitoring is crucial for patients with urinary dysfunction.
    • Current portable ultrasound requires manual operation, and wearable devices face power limitations.
    • Existing wearable ultrasound systems have limited battery life due to high power consumption.

    Purpose of the Study:

    • To develop a power-saving algorithm for wearable ultrasound devices.
    • To reduce power consumption in receiver (RX) amplifiers without compromising essential imaging data.
    • To enhance the battery life of wearable ultrasound systems for continuous bladder monitoring.

    Main Methods:

    • Proposed Power Gating for Intra-Image Sparsity (PGIIS) algorithm to selectively power gate RX amplifiers.
    • Designed a low-power analog front-end (AFE) integrated circuit (IC) implementing PGIIS.
    • Integrated an 8-channel ultrasound transmit (TX) and RX chain with amplifier power gating.

    Main Results:

    • PGIIS algorithm successfully reduced RX power consumption by 75% in phantom testing.
    • Important bladder features for volume calculation were preserved.
    • Significant extension of battery life for wearable ultrasound systems was demonstrated.

    Conclusions:

    • PGIIS is an effective algorithm for reducing power consumption in wearable ultrasound devices.
    • The developed low-power AFE IC with PGIIS enables extended battery life for continuous bladder monitoring.
    • This technology offers a promising solution for non-invasive, long-term urinary function assessment.