Two-dimensional ultrasonic transducer array for shear wave elastography in deep tissues: a preliminary study
- Resource Type
- Authors
- Sergio Shiguemi Furuie; Fernando Mitsuyama Cardoso; Djalma Simões dos Santos
- Source
- Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP
- Subject
- Shear wave elastography
Materials science
Wave propagation
Acoustics
2d array
0206 medical engineering
Biomedical Engineering
Ultrasonic transducer array
02 engineering and technology
DIAGNÓSTICO POR IMAGEM
020601 biomedical engineering
Pressure field
030218 nuclear medicine & medical imaging
03 medical and health sciences
0302 clinical medicine
Transducer
Elasticity (economics)
Acoustic radiation force
- Language
- ISSN
- 2446-4740
2446-4732
This paper investigates the use of shear wave elastography (SWE) in deep tissues with a two-dimensional (2D) transducer array. 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. 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. This study suggests that a 2D transducer with proper parameters may provide a means for extending the depth range of SWE.