Selecting the number and location of sources and receivers for non-linear time-domain inversion

Ramirez, Ana B.; Abreo, Sergio A.; Dongen, Koen van

doi:10.1109/ultsym.2017.8092282

Cited by 3 publications

(1 citation statement)

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“…In addition, for the frequency-domain methods only a few frequency components are usually sufficient to conduct the inversion, which makes CSI computationally attractive. [12][13][14] In this work, we investigate the application of CSI on a real measurement. Measurement data is acquired from a circular setup that is built by FUJIFILM Healthcare Corporation.…”

Section: Introductionmentioning

confidence: 99%

Contrast source inversion on experimental data: initial results

Taskin¹,

Suzuki²,

Terada³

et al. 2022

Medical Imaging 2022: Ultrasonic Imaging and Tomography

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Quantitative images showing the speed of sound profile of the breast may be obtained by employing full-waveform inversion (FWI) methods on the measured data. These reconstruction methods work well for both dense and normal breasts. Contrast source inversion (CSI) is a frequency domain FWI method. In literature, many examples of successful application of CSI for breast imaging can be found. However, all these works are based on simulated data. In this work, we will present our first results obtained with employing CSI on experimental data. CSI was developed by Delft University of Technology and the experimental data was provided by FUJIFILM Healthcare Corporation. The experimental data is obtained using a ring-shaped transducer which scans a breast-mimicking gelatine phantom. Our initial results obtained with CSI look promising; all inclusions within the phantom are accurately reconstructed.

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Section: Introductionmentioning

confidence: 99%

Contrast source inversion on experimental data: initial results

Taskin¹,

Suzuki²,

Terada³

et al. 2022

Medical Imaging 2022: Ultrasonic Imaging and Tomography

View full text Add to dashboard Cite

show abstract

On the Feasibility of Radiomic Analysis for the Detection of Breast Lesions in Speed-of-Sound Images of the Breast

Vargas

Hernández²,

Ramirez³

et al. 2022

Medical Image Understanding and Analysis

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Design of Ultrasonic Synthetic Aperture Imaging Systems Based on a Non-Grid 2D Sparse Array

Souza

Parrilla

Higuti

et al. 2021

Sensors

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This work provides a guide to design ultrasonic synthetic aperture systems for non-grid two-dimensional sparse arrays such as spirals or annular segmented arrays. It presents an algorithm that identifies which elements have a more significant impact on the beampattern characteristics and uses this information to reduce the number of signals, the number of emitters and the number of parallel receiver channels involved in the beamforming process. Consequently, we can optimise the 3D synthetic aperture ultrasonic imaging system for a specific sparse array, reducing the computational cost, the hardware requirements and the system complexity. Simulations using a Fermat spiral array and experimental data based on an annular segmented array with 64 elements are used to assess this algorithm.

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Selecting the number and location of sources and receivers for non-linear time-domain inversion

Cited by 3 publications

References 0 publications

Contrast source inversion on experimental data: initial results

Contrast source inversion on experimental data: initial results

On the Feasibility of Radiomic Analysis for the Detection of Breast Lesions in Speed-of-Sound Images of the Breast

Design of Ultrasonic Synthetic Aperture Imaging Systems Based on a Non-Grid 2D Sparse Array

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