A Programmable Platform for Accelerating the Development of Smart Ultrasound Transducer Probe

Xu, Xiaochen; Wala, Shabbir Amjhera; Vishwa, Abhishek; Shen, Jun; Dijeesh, K; Devi, Shriram; Chandak, Aatish; Dixit, Sanjay; Granata, Elisa; Pithadia, Sanjay; Nimran, Vajeed; Oswal, S.

doi:10.1109/tuffc.2020.3042472

Cited by 8 publications

(3 citation statements)

References 32 publications

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“…Table 4 compares this work with other realizations. In [9,42], the proposed architectures have a wide input voltage range and specific output voltage levels. In [12,13], the input voltages are fixed at 12 V and they can provide high efficiency.…”

Section: Comparison With Recent Similar Convertersmentioning

confidence: 99%

“…To excite these elements, typically, the ultrasound sensors consist of many piezoelectric elements and use a DC-DC converter to generate high-voltage (HV) bipolar pulses from low-voltage control logic inputs (up to 80 V) and high frequencies (2-20 MHz) [8]. A number of researchers have developed prototypes of portable ultrasound scanners that supply variable symmetric bipolar voltages to the probes [9][10][11]. Voltages of up to ±80 V are obtained from low-voltage sources in a single conventional bipolar converter stage.…”

Section: Introductionmentioning

confidence: 99%

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Contribution to the Development of a Smart Ultrasound Scanner: Design and Analysis of the High-Voltage Power Supply of the Transmitter

Mbele Ndzana,

Lekini Nkodo,

Tolok Nelem

et al. 2023

Inventions

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A smart ultrasound scanner plays an important role in the transition to point-of-care imaging. DC–DC bipolar converters are essential in the generation of the ultrasound burst signal as they power the piezoelectric transducer. The conventional bipolar converter has minimal output gain and high-voltage stress, and the longer duty cycle on the semiconductors produces high conduction losses and reduces the efficiency of the system. The transmitter supply voltage is minimal, necessitating the use of high-gain bipolar converters. This proposed study is concerned with the development of an improved high-output voltage gain symmetric bipolar DC–DC converter topology which may be suitable for applications such as powering a smart ultrasound scanner transmitter. The proposed converter combines the conventional single-ended primary inductor converter (SEPIC) with a voltage multiplier cell (VMC) to improve voltage gain, transistor duty cycle, efficiency, and reliability. The present study describes the working principle of the proposed converter. The analysis of the voltage gain is carried out in continuous current mode (CCM) and discontinuous current mode (DCM), taking into account the nonidealities of the device. The simulation of the proposed system is carried out in the numerical environment Matlab/Simulink in order to verify its characteristics. A prototype model is realized and the experimental study presented validates the theoretical arguments and simulations. Due to the advantages of continuous input current, self-balancing bipolar outputs, and small component size, the proposed converter is a suitable choice for smart ultrasound transmitters.

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Section: Comparison With Recent Similar Convertersmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Contribution to the Development of a Smart Ultrasound Scanner: Design and Analysis of the High-Voltage Power Supply of the Transmitter

Mbele Ndzana,

Lekini Nkodo,

Tolok Nelem

et al. 2023

Inventions

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show abstract

“…It is the most affordable and effective non-invasive bedside tool for soft-tissue examinations, guided interventions, and investigation of blood ow dynamics at high frame rates [1], [2]. Driven by the recent advancements in system-on-chip devices, recent research on point-of-care ultrasound (POCUS) imaging suggests that US imaging would be the stand-out modality for ultraportable systems even at low resource settings [3], [4].…”

Section: Introductionmentioning

confidence: 99%

An Angle Independent Depth Aware Fusion Beamforming Approach for Ultrafast Ultrasound Flow Imaging

Madhavanunni

Panicker

2021

2021 43rd Annual International Conference of the IEEE Engineering in Medicine &Amp; Biology Society (EMBC)

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In this paper, we present a GPU-accelerated prototype implementation of a portable ultrasound imaging pipeline on an Nvidia CLARA AGX development kit. The raw data is acquired with nonsteered plane wave transmit using a programmable handheld open platform that supports 128-channel transmit and 64-channel receive. The received signals are transferred to the Nvidia CLARA AGX developer platform through a host system for accelerated imaging. GPU-accelerated implementation of the conventional delay and sum (DAS) beamformer along with two adaptive nonlinear beamformers and two Fourierbased techniques was performed. The feasibility of the complete pipeline and its imaging performance was evaluated with in-vitro phantom imaging experiments and the efcacy is demonstrated with preliminary in-vivo scans. The image quality quantied by the standard contrast and resolution metrics was comparable with that of the CPU implementation. The execution speed of the implemented beamformers was also investigated for different sizes of imaging grids and a signicant speedup as high as 180 times that of the CPU implementation was observed. Since the proposed pipeline involves Nvidia CLARA AGX, there is always the potential for easy incorporation of online/active learning approaches.

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Deconvolution based on sparsity and continuity improves the quality of ultrasound image

Li,

Zhang,

Fan

et al. 2024

Computers in Biology and Medicine

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A Programmable Platform for Accelerating the Development of Smart Ultrasound Transducer Probe

Cited by 8 publications

References 32 publications

Contribution to the Development of a Smart Ultrasound Scanner: Design and Analysis of the High-Voltage Power Supply of the Transmitter

Contribution to the Development of a Smart Ultrasound Scanner: Design and Analysis of the High-Voltage Power Supply of the Transmitter

An Angle Independent Depth Aware Fusion Beamforming Approach for Ultrafast Ultrasound Flow Imaging

Deconvolution based on sparsity and continuity improves the quality of ultrasound image

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