Commenced in January 2007
Frequency: Monthly
Edition: International
Paper Count: 31106
Achieving Shear Wave Elastography by a Three-element Probe for Wearable Human-machine Interface

Authors: Jipeng Yan, Xingchen Yang, Xiaowei Zhou, Mengxing Tang, Honghai Liu


Shear elastic modulus of skeletal muscles can be obtained by shear wave elastography (SWE) and has been linearly related to muscle force. However, SWE is currently implemented using array probes. Price and volumes of these probes and their driving equipment prevent SWE from being used in wearable human-machine interfaces (HMI). Moreover, beamforming processing for array probes reduces the real-time performance. To achieve SWE by wearable HMIs, a customized three-element probe is adopted in this work, with one element for acoustic radiation force generation and the others for shear wave tracking. In-phase quadrature demodulation and 2D autocorrelation are adopted to estimate velocities of tissues on the sound beams of the latter two elements. Shear wave speeds are calculated by phase shift between the tissue velocities. Three agar phantoms with different elasticities were made by changing the weights of agar. Values of the shear elastic modulus of the phantoms were measured as 8.98, 23.06 and 36.74 kPa at a depth of 7.5 mm respectively. This work verifies the feasibility of measuring shear elastic modulus by wearable devices.

Keywords: Ultrasound, skeletal muscle, shear elastic modulus, wearable human-machine interface

Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF Downloads 191


[1] S. F. Brennan, “In vivo fascicle length measurements via b-mode ultrasound imaging with single vs dual transducer arrangements.” Journal of Biomechanics, vol. 64, 2017.
[2] J. Shi, “Continuous monitoring of sonomyography, electromyography and torque generated by normal upper arm muscles during isometric contraction: sonomyography assessment for arm muscles,” IEEE Transactions on Biomedical Engineering, vol. 55, no. 3, pp. 1191–1198, 2008.
[3] A. I. Namburete, “Computational methods for quantifying in vivo muscle fascicle curvature from ultrasound images,” Journal of Biomechanics, vol. 44, no. 14, pp. 2538–2543, 2011.
[4] A. I. Namburete and J. M. Wakeling, “Regional variations in fascicle curvatures within a muscle belly change during contraction.” Journal of Biomechanics, vol. 45, no. 16, pp. 2835–2840, 2012.
[5] J. Guo, “Dynamic monitoring of forearm muscles using one-dimensional sonomyography system,” Journal of Rehabilitation Research and Development, 2008.
[6] X. Yang, “Towards wearable a-mode ultrasound sensing for real-time finger motion recognition,” IEEE Transactions on Neural Systems and Rehabilitation Engineering, vol. 26, no. 6, pp. 1199–1208, 2018.
[7] X. Yang, J. Yan, and H. Liu, “Comparative analysis of wearable a-mode ultrasound and semg for muscle-computer interface,” IEEE Transactions on Biomedical Engineering, pp. 1–1, 2019.
[8] O. Ma¨ısetti, “Characterization of passive elastic properties of the human medial gastrocnemius muscle belly using supersonic shear imaging,” Journal of Biomechanics, vol. 45, no. 6, pp. 978–984, 2012.
[9] K. Bouillard, “Estimation of individual muscle force using elastography,” Plos One, vol. 6, no. 12, p. e29261, 2011.
[10] L. Sandrin, “Shear elasticity probe for soft tissues with 1-d transient elastography,” IEEE Transactions on Ultrasonics Ferroelectrics & Frequency Control, vol. 49, no. 4, pp. 436–446, 2002.
[11] S. F. Eby, “Validation of shear wave elastography in skeletal muscle.” Journal of Biomechanics, vol. 46, no. 14, pp. 2381–2387, 2013.
[12] T. Loupas, J. T. Powers, and R. W. Gill, “An axial velocity estimator for ultrasound blood flow imaging, based on a full evaluation of the doppler equation by means of a two-dimensional autocorrelation approach,” IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, vol. 42, no. 4, pp. 672–688, 1995.
[13] A. P. Sarvazyan, O. V. Rudenko, S. D. Swanson, J. B. Fowlkes, and S. Y. Emelianov, “Shear wave elasticity imaging: a new ultrasonic technology of medical diagnostics,” Ultrasound in Medicine & Biology, vol. 24, no. 9, pp. 1419–1435, 1998.