A high frequency endoscopic ultrasound imaging method combining chirp coded excitation and compressed sensing

Wang, Ninghao; Li, Xinze; Xu, Jie; Jiao, Yang; Cui, Yaoping; Jian, Xiaohua

doi:10.1016/j.ultras.2021.106669

Cited by 8 publications

(3 citation statements)

References 34 publications

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“…The extensive branches in this field also imply the potential for cross-fusion with many other technologies. We have noticed that some scholars have combined CE with signal processing methods such as compressive sensing [102] and wavelet transform [103], indicating that there will be more possibilities in the future. At the same time, we have noticed that CE has been widely applied and extensively researched in industrial ultrasonic testing and medical ultrasound imaging.…”

Section: Discussionmentioning

confidence: 99%

Coded Excitation for Ultrasonic Testing: A Review

Weng,

Gu,

Jin

2024

Sensors

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Originating in the early 20th century, ultrasonic testing has found increasingly extensive applications in medicine, industry, and materials science. Achieving both a high signal-to-noise ratio and high efficiency is crucial in ultrasonic testing. The former means an increase in imaging clarity as well as the detection depth, while the latter facilitates a faster refresh of the image. It is difficult to balance these two indicators with a conventional short pulse to excite the probe, so in general handling methods, these two factors have a trade-off. To solve the above problems, coded excitation (CE) can increase the pulse duration and offers great potential to improve the signal-to-noise ratio with equivalent or even higher efficiency. In this paper, we first review the fundamentals of CE, including signal modulation, signal transmission, signal reception, pulse compression, and optimization methods. Then, we introduce the application of CE in different areas of ultrasonic testing, with a focus on industrial bulk wave single-probe detection, industrial guided wave detection, industrial bulk wave phased array detection, and medical phased array imaging. Finally, we point out the advantages as well as a few future directions of CE.

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Section: Discussionmentioning

confidence: 99%

Coded Excitation for Ultrasonic Testing: A Review

Weng,

Gu,

Jin

2024

Sensors

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“…[6] However, ultrasound imaging of the lung, bone, and brain, as well as tumor lesions less than 1 cm in size, could be challenging. [7][8][9] PET-CT is a powerful method for screening early-stage tumors or small metastatic lesions throughout the body based on the high sensitivity and specificity of PET tracers. PET-CT and SPECT require the use of radioactive tracers (i.e., 18 F-FDG and 99m Tc) and show relatively low spatial resolutions (5-7 mm) in clinical applications.…”

Section: Introductionmentioning

confidence: 99%

Magnetic Particle Imaging: From Tracer Design to Biomedical Applications in Vasculature Abnormality

Xie,

Zhai,

Zhou

et al. 2023

Advanced Materials

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Magnetic particle imaging (MPI) is an emerging non‐invasive tomographic technique based on the response of magnetic nanoparticles (MNPs) to oscillating drive fields at the center of a static magnetic gradient. In contrast with magnetic resonance imaging (MRI), which is driven by uniform magnetic fields and projects the anatomic information of the subjects, MPI directly tracks and quantifies MNPs in vivo without background signals. Moreover, it does not require radioactive tracers and has no limitations on imaging depth. This review first introduces the basic principles of MPI and important features of MNPs for advanced imaging sensitivity, spatial resolution, and targeted biodistribution. The latest research on optimized MPI tracers is reviewed based on their material composition, physical properties, and surface modifications. Since all the imaging benefits have led to a series of promising biomedical applications, we also discuss recent relational practices of MPI in vascular abnormalities, including cardiovascular and cerebrovascular systems, and cancers. Finally, some considerations of obstructions and recent progress closely related to the clinical translation of MPI are summarized to provide possible direction for future research and development.This article is protected by copyright. All rights reserved

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“…Improving the axial resolution (AR) will bring many benefits for numerous applications in ultrasound imaging, such as localizing single microbubbles for super-resolution, segmenting the cross-sectional area of a carotid artery for stenosis assessment and measuring the intima-media thickness of a common carotid artery for diagnosing cardiovascular diseases [ 1 , 2 , 3 , 4 , 5 , 6 ]. Numerous methods have been proposed to improve the AR in ultrasound B-mode imaging.…”

Section: Introductionmentioning

confidence: 99%

Enhancement of Ultrasound B-Mode Image Quality Using Nonlinear Filtered-Multiply-and-Sum Compounding for Improved Carotid Artery Segmentation

et al. 2023

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In ultrasound B-mode imaging, the axial resolution (AR) is commonly determined by the duration or bandwidth of an excitation signal. A shorter-duration pulse will produce better resolution compared to a longer one but with compromised penetration depth. Instead of relying on the pulse duration or bandwidth to improve the AR, an alternative method termed filtered multiply and sum (FMAS) has been introduced in our previous work. For spatial-compounding, FMAS uses the autocorrelation technique as used in filtered-delay multiply and sum (FDMAS), instead of conventional averaging. FMAS enables a higher frame rate and less computational complexity than conventional plane-wave compound imaging beamformed with delay and sum (DAS) and FDMAS. Moreover, it can provide an improved contrast ratio and AR. In previous work, no explanation was given on how FMAS was able to improve the AR. Thus, in this work, we discuss in detail the theory behind the proposed FMAS algorithm and how it is able to improve the spatial resolution mainly in the axial direction. Simulations, experimental phantom measurements and in vivo studies were conducted to benchmark the performance of the proposed method. We also demonstrate how the suggested new algorithm may be used in a practical biomedical imaging application. The balloon snake active contour segmentation technique was applied to the ultrasound B-mode image of a common carotid artery produced with FMAS. The suggested method is capable of reducing the number of iterations for the snake to settle on the region-of-interest contour, accelerating the segmentation process.

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A high frequency endoscopic ultrasound imaging method combining chirp coded excitation and compressed sensing

Cited by 8 publications

References 34 publications

Coded Excitation for Ultrasonic Testing: A Review

Coded Excitation for Ultrasonic Testing: A Review

Magnetic Particle Imaging: From Tracer Design to Biomedical Applications in Vasculature Abnormality

Enhancement of Ultrasound B-Mode Image Quality Using Nonlinear Filtered-Multiply-and-Sum Compounding for Improved Carotid Artery Segmentation

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