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Modeling ultrasound attenuation in porous structures with mono-disperse random pore distributions using the independent scattering approximation: a 2D simulation study.
Phys Med Biol 2019; 64(15):155013PM

Abstract

The validity of the independent scattering approximation (ISA) to predict the frequency dependent attenuation in 2D models of simplified structures of cortical bone is studied. Attenuation of plane waves at central frequencies ranging from 1 to 8 MHz propagating in structures with mono-disperse random pore distributions with pore diameter and pore density in the range of those of cortical bone are evaluated by finite difference time domain numerical simulations. An approach to assess the multiple scattering of waves in random media is discussed to determine the pore diameter ranges at which the ISA is applicable. A modified version of the ISA is proposed to more accurately predict the attenuation in porosity ranges where it would traditionally fail. The results show that the modified ISA can model the frequency-dependent attenuation of ultrasonic wave with pore diameter and density ranges comparable to those of cortical bone.

Authors+Show Affiliations

Mechanical and Aerospace Engineering Department, North Carolina State University, Raleigh, NC 27606, United States of America.No affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

31207588

Citation

Yousefian, Omid, et al. "Modeling Ultrasound Attenuation in Porous Structures With Mono-disperse Random Pore Distributions Using the Independent Scattering Approximation: a 2D Simulation Study." Physics in Medicine and Biology, vol. 64, no. 15, 2019, p. 155013.
Yousefian O, Karbalaeisadegh Y, Muller M. Modeling ultrasound attenuation in porous structures with mono-disperse random pore distributions using the independent scattering approximation: a 2D simulation study. Phys Med Biol. 2019;64(15):155013.
Yousefian, O., Karbalaeisadegh, Y., & Muller, M. (2019). Modeling ultrasound attenuation in porous structures with mono-disperse random pore distributions using the independent scattering approximation: a 2D simulation study. Physics in Medicine and Biology, 64(15), p. 155013. doi:10.1088/1361-6560/ab2a32.
Yousefian O, Karbalaeisadegh Y, Muller M. Modeling Ultrasound Attenuation in Porous Structures With Mono-disperse Random Pore Distributions Using the Independent Scattering Approximation: a 2D Simulation Study. Phys Med Biol. 2019 Aug 7;64(15):155013. PubMed PMID: 31207588.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Modeling ultrasound attenuation in porous structures with mono-disperse random pore distributions using the independent scattering approximation: a 2D simulation study. AU - Yousefian,Omid, AU - Karbalaeisadegh,Yasamin, AU - Muller,Marie, Y1 - 2019/08/07/ PY - 2019/6/18/pubmed PY - 2019/6/18/medline PY - 2019/6/18/entrez SP - 155013 EP - 155013 JF - Physics in medicine and biology JO - Phys Med Biol VL - 64 IS - 15 N2 - The validity of the independent scattering approximation (ISA) to predict the frequency dependent attenuation in 2D models of simplified structures of cortical bone is studied. Attenuation of plane waves at central frequencies ranging from 1 to 8 MHz propagating in structures with mono-disperse random pore distributions with pore diameter and pore density in the range of those of cortical bone are evaluated by finite difference time domain numerical simulations. An approach to assess the multiple scattering of waves in random media is discussed to determine the pore diameter ranges at which the ISA is applicable. A modified version of the ISA is proposed to more accurately predict the attenuation in porosity ranges where it would traditionally fail. The results show that the modified ISA can model the frequency-dependent attenuation of ultrasonic wave with pore diameter and density ranges comparable to those of cortical bone. SN - 1361-6560 UR - https://www.unboundmedicine.com/medline/citation/31207588/Modeling_ultrasound_attenuation_in_porous_structures_with_mono-disperse_random_pore_distributions_using_the_independent_scattering_approximation:_A_2D_simulation_study L2 - https://doi.org/10.1088/1361-6560/ab2a32 DB - PRIME DP - Unbound Medicine ER -