Two-dimensional ultrasonic transducer array for shear wave elastography in deep tissues: a preliminary study

被引：1
作者：
dos Santos D.S. [1 ]
Cardoso F.M. [1 ]
Furuie S.S. [1 ]
机构：
[1] Biomedical Engineering Laboratory, Polytechnic School, University of São Paulo, São Paulo
来源：
Research on Biomedical Engineering | 2020年 / 36卷 / 03期
基金：
巴西圣保罗研究基金会;
关键词：
Acoustic radiation force (ARF); Deep tissue; Shear wave elastography (SWE); Two-dimensional (2D) array; Ultrasonic transducer;
D O I：
10.1007/s42600-020-00068-6
中图分类号：
学科分类号：
摘要：
Purpose: This paper investigates the use of shear wave elastography (SWE) in deep tissues with a two-dimensional (2D) transducer array. Methods: A 130-element 800-kHz 2D array for SWE in regions deeper than 100 mm is designed, fabricated, and characterized. SWE simulations are performed with the proposed 2D array in a tissue-like medium. Results: The pressure field of the proposed transducer was recorded and utilized to simulate the generation of acoustic radiation force in deep tissues. The elasticity map of the tissue was successfully reconstructed by tracking the speed of shear wave propagation at 120 mm depth. Conclusion: This study suggests that a 2D transducer with proper parameters may provide a means for extending the depth range of SWE. © 2020, Sociedade Brasileira de Engenharia Biomedica.
引用
收藏
页码：277 / 289
页数：12
相关论文
共 55 条
  • [1] Azar L., Shi Y., Wooh S.C., Beam focusing behavior of linear phased arrays, NDT and E Int, 33, 3, pp. 189-198, (2000)
  • [2] Bercoff J., Tanter M., Fink M., Supersonic shear imaging: a new technique for soft tissue elasticity mapping, IEEE Trans Ultrason Ferroelectr Freq Control, 51, 4, pp. 396-409, (2004)
  • [3] Bota S., Sporea I., Sirli R., Popescu A., Danila M., Jurchis A., Gradinaru-Tascau O., Factors associated with the impossibility to obtain reliable liver stiffness measurements by means of acoustic radiation force impulse (ARFI) elastography - analysis of a cohort of 1031 subjects, Eur J Radiol, 83, 2, pp. 268-272, (2014)
  • [4] Bruno C., Minniti S., Bucci A., Mucelli R.P., ARFI: from basic principles to clinical applications in diffuse chronic disease—a review, Insights Imaging, 7, 5, pp. 735-746, (2016)
  • [5] Cardoso F.M., Santos D.S., Furuie S.S., Acoustic radiation force impulse in deep tissues using matricial array transducers, Proc. of the Brazilian Cong. on Biomed. Eng. Foz Do Iguaçu, Brazil: SBEB, pp. 1075-1078, (2016)
  • [6] Chami L., Yue J.L., Lucidarme O., Lefort M., Pellot-Barakat C., Feasibility of liver shear wave elastography with different transducers, IEEE International Ultrasonics Symposium
  • [7] Chen S., Urban M.W., Pislaru C., Kinnick R., Zheng Y., Yao A., Greenleaf J.F., Shearwave dispersion ultrasound vibrometry (SDUV) for measuring tissue elasticity and viscosity, IEEE Trans Ultrason Ferroelectr Freq Control, 56, 1, pp. 55-62, (2009)
  • [8] Dewall R.J., Ultrasound Elastography: principles, techniques, and clinical applications, Crit Rev Biomed Eng, 41, 1, pp. 1-19, (2013)
  • [9] Doherty J., Trahey G., Nightingale K., Palmeri M., Acoustic radiation force elasticity imaging in diagnostic ultrasound, IEEE Trans Ultrason Ferroelectr Freq Control, 60, 4, pp. 685-701, (2013)
  • [10] Ergun A.S., Analytical and numerical calculations of optimum design frequency for focused ultrasound therapy and acoustic radiation force, Ultrasonics, 51, 7, pp. 786-794, (2011)
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