Nonlinear Ultrasound Propagation in Homogeneous and Heterogeneous Media: Factors Affecting the in situ Mechanical Index (MI)
Publication
, Conference
Zhang, B; Pinton, G; Deng, Y; Tripathi, B; Nightingale, K
Published in: IEEE International Ultrasonics Symposium, IUS
October 31, 2017
This study used 3D nonlinear ultrasound simulations to identify the sources of error when estimating the in situ Peak Rarefaction Pressure (PRP) as compared to linear derating in the context of the Mechanical Index (MI) measurement. We found that varying material nonlinearity within the range of soft tissue (5 < B/A < 10) does not affect PRP estimation. We also found that for large apertures (F/1.5), phase aberration is the dominant factor that causes the linear derating MI method to consistently report higher PRP than actually occurs in situ. For smaller apertures (F/5), both phase aberration and reverberation clutter cause the linear derating MI method to report lower PRP than actually occurs in situ.
Duke Scholars
Published In
IEEE International Ultrasonics Symposium, IUS
DOI
EISSN
1948-5727
ISSN
1948-5719
ISBN
9781538633830
Publication Date
October 31, 2017
Citation
APA
Chicago
ICMJE
MLA
NLM
Zhang, B., Pinton, G., Deng, Y., Tripathi, B., & Nightingale, K. (2017). Nonlinear Ultrasound Propagation in Homogeneous and Heterogeneous Media: Factors Affecting the in situ Mechanical Index (MI). In IEEE International Ultrasonics Symposium, IUS. https://doi.org/10.1109/ULTSYM.2017.8091514
Zhang, B., G. Pinton, Y. Deng, B. Tripathi, and K. Nightingale. “Nonlinear Ultrasound Propagation in Homogeneous and Heterogeneous Media: Factors Affecting the in situ Mechanical Index (MI).” In IEEE International Ultrasonics Symposium, IUS, 2017. https://doi.org/10.1109/ULTSYM.2017.8091514.
Zhang B, Pinton G, Deng Y, Tripathi B, Nightingale K. Nonlinear Ultrasound Propagation in Homogeneous and Heterogeneous Media: Factors Affecting the in situ Mechanical Index (MI). In: IEEE International Ultrasonics Symposium, IUS. 2017.
Zhang, B., et al. “Nonlinear Ultrasound Propagation in Homogeneous and Heterogeneous Media: Factors Affecting the in situ Mechanical Index (MI).” IEEE International Ultrasonics Symposium, IUS, 2017. Scopus, doi:10.1109/ULTSYM.2017.8091514.
Zhang B, Pinton G, Deng Y, Tripathi B, Nightingale K. Nonlinear Ultrasound Propagation in Homogeneous and Heterogeneous Media: Factors Affecting the in situ Mechanical Index (MI). IEEE International Ultrasonics Symposium, IUS. 2017.
Published In
IEEE International Ultrasonics Symposium, IUS
DOI
EISSN
1948-5727
ISSN
1948-5719
ISBN
9781538633830
Publication Date
October 31, 2017