Scatterer size estimation using the center frequency assessed from ultrasound time domain data

Forskningsoutput: TidskriftsbidragArtikel i vetenskaplig tidskrift

Bibtex

@article{58d2d0b4f4c04046863ea76372709324,
title = "Scatterer size estimation using the center frequency assessed from ultrasound time domain data",
abstract = "Scatterer size estimation is useful when characterizing tissue using ultrasound. In all previous studies on scatterer size, the estimations are performed in the frequency domain and are thus subjected to a trade off in time-frequency resolution. This study focused on the feasibility of estimating scatterer size in the time domain using only the ultrasound center frequency, assuming a Gaussian-shaped pulse. A model for frequency normalization was derived and the frequency-dependent attenuation was compensated. Five phantoms with well-defined sizes of spherical glass beads were made and scanned with two different linear array transducers with variable center frequencies. A strong correlation (r = 0.99, p < 10-19) between the backscattered center frequency and the product between the wave number and scatterer radius was demonstrated. On average the scatterer diameter was underestimated by 6{\%} ± 24{\%}. These results suggest that estimation of scatterer size is possible using only the center frequency assessed in the time domain.",
author = "Tobias Erl{\"o}v and Tomas Jansson and Persson, {Hans W.} and Magnus Cinthio",
year = "2016",
month = "10",
day = "1",
doi = "10.1121/1.4964107",
language = "English",
volume = "140",
pages = "2352--2357",
journal = "J. Acoust. Soc. Am.",
issn = "1520-8524",
publisher = "American Institute of Physics",
number = "4",

}