2-D Ultrasound Shear Wave Elastography With Multi-Sphere-Source External Mechanical Vibration: Preliminary Phantom Results

Yang, Hongxu; Carrascal, Carolina Amador; Xie, Hua; Shamdasani, Vijay; Anthony, Brian W.

doi:10.1016/j.ultrasmedbio.2020.03.009

Cited by 4 publications

(5 citation statements)

References 37 publications

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“…[21][22][23] In this context, external mechanical vibration has emerged as a cost-effective and low-energy consumption alternative for inducing shear waves. 24,25 Moreover, color Doppler shear wave imaging can be utilized for the detection of propagated shear waves, offering a larger Region of Interest (ROI) with improved signal-to-noise ratio (SNR). Several studies have explored the use of vibrators to estimate tissue elasticity.…”

Section: Introductionmentioning

confidence: 99%

Continuous Shear Wave Elastography for Liver Using Frame-to-Frame Equalization of Complex Amplitude

Tano,

Koda,

Tanigawa

et al. 2024

Ultrason Imaging

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This study addresses a crucial necessity in the field of noninvasive liver fibrosis diagnosis by introducing the concept of continuous shear wave elastography (C-SWE), utilizing an external vibration source and color Doppler imaging. However, an application of C-SWE to assess liver elasticity, a deep region within the human body, arises an issue of signal instability in the obtained data. To tackle this challenge, this work proposes a method involving the acquisition of multiple frames of datasets, which are subsequently compressed. Furthermore, the proposed frame-to-frame equalization method compensates discrepancies in the initial phase that might exist among multiple-frame datasets, thereby significantly enhancing signal stability. The experimental validation of this approach encompasses both phantom tests and in vivo experiments. In the phantom tests, the proposed technique is validated through a comparison with the established shear wave elastography (SWE) technique. The results demonstrate a remarkable agreement, with an error in shear wave velocity of less than 4.2%. Additionally, the efficacy of the proposed method is confirmed through in vivo tests. As a result, the stabilization of observed shear waves using the frame-to-frame equalization technique exhibits promising potential for accurately assessing human liver elasticity. These findings collectively underscore the viability of C-SWE as a potential diagnostic instrument for liver fibrosis.

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Section: Introductionmentioning

confidence: 99%

Continuous Shear Wave Elastography for Liver Using Frame-to-Frame Equalization of Complex Amplitude

Tano,

Koda,

Tanigawa

et al. 2024

Ultrason Imaging

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“…SWE has been widely used in the diagnosis of diseases such as liver, thyroid, breast, and fetal growth and development due to its non-invasive, simple operation, and high reproducibility (14,15). However, SWE results are easily affected by factors such as calcification in the lesion, large blood vessels, respiratory movement, measurement depth, and the nature of the tissue around the lesion (16).…”

Section: Introductionmentioning

confidence: 99%

Systematic review and meta-analysis: gray-scale ultrasound and shear wave elastography in the diagnosis of primipara pregnancy and delivery

Qu¹,

Sun²,

Chen³

et al. 2021

Ann Palliat Med

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“…Shear wave propagation speed is highly dependent on tissue stiffness; Doppler ultrasonography can be used to measure tissue stiffness because it can measure small propagationrelated displacement fluctuations with relatively high accuracy 9,10 . In ultrasound shear wave elastography, shear waves can be launched in a controlled manner by external mechanical vibrations [11][12][13][14][15][16][17][18][19][20][21][22] and acoustic radiation force impulses [23][24][25][26][27][28] . The use of an external vibrating source is much less common among commercial ultrasound shear wave elastography systems because it is relatively difficult to image the target tissue at appropriate depth; moreover, the required devices can be cumbersome 11,22 .…”

mentioning

confidence: 99%

“…In ultrasound shear wave elastography, shear waves can be launched in a controlled manner by external mechanical vibrations [11][12][13][14][15][16][17][18][19][20][21][22] and acoustic radiation force impulses [23][24][25][26][27][28] . The use of an external vibrating source is much less common among commercial ultrasound shear wave elastography systems because it is relatively difficult to image the target tissue at appropriate depth; moreover, the required devices can be cumbersome 11,22 . Most commercial ultrasound shear wave elastography systems (e.g., Philips, GE Healthcare, Siemens, Canon, Mindray, Samsung, and Supersonic) use acoustic radiation force impulse-based techniques to generate ultrasonic shear waves in tissues 27,28 .…”

mentioning

confidence: 99%

“…Accordingly, external mechanical vibration has been proposed as a cost-effective alternative method for shear-wave induction, with the goal of enabling wider adoption of shear wave elastography 14,17,20,22 . Recently, there has been considerable progress in developing the technological foundation required for external mechanical vibration-based shear wave elastography imaging 16,19,30 .…”

mentioning

confidence: 99%

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Application of the novel estimation method by shear wave elastography using vibrator to human skeletal muscle

Tsuchida

Yamakoshi

Matsuo

et al. 2020

Sci Rep

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In recent years, non-invasive measurement of tissue stiffness (hardness) using ultrasound elastography has attracted considerable attention. It has been used to evaluate muscle stiffness in the fields of rehabilitation, sports, and orthopedics. However, ultrasonic diagnostic devices with elastography systems are expensive and clinical use of such devices has been limited. In this study, we proposed a novel estimation method for vibration-based shear wave elastography measurement of human skeletal muscle, then determined its reproducibility and reliability. The coefficient of variation and correlation coefficient were used to determine reproducibility and reliability of the method by measuring the shear wave velocities in konjac phantom gels and agar phantom gels, as well as skeletal muscle. The intra-day, day-to-day, and inter-operator reliabilities were good when measuring the shear wave velocities in phantom gels. The intra-day and day-to-day reliabilities were good when measuring the shear wave velocities in skeletal muscle. The findings confirmed adequate reproducibility and reliability of the novel estimation method for vibration-based shear wave elastography. Therefore, the proposed measurement method may be a useful tool for evaluation of muscle stiffness.

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2-D Ultrasound Shear Wave Elastography With Multi-Sphere-Source External Mechanical Vibration: Preliminary Phantom Results

Cited by 4 publications

References 37 publications

Continuous Shear Wave Elastography for Liver Using Frame-to-Frame Equalization of Complex Amplitude

Continuous Shear Wave Elastography for Liver Using Frame-to-Frame Equalization of Complex Amplitude

Systematic review and meta-analysis: gray-scale ultrasound and shear wave elastography in the diagnosis of primipara pregnancy and delivery

Application of the novel estimation method by shear wave elastography using vibrator to human skeletal muscle

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