@inproceedings{1944cb2cf9b043eb8397ce1330e1eac8,
title = "A regularized quantitative ultrasound method for simultaneous calculation of backscatter and attenuation coefficients",
abstract = "Quantitative ultrasound has shown potential of improving medical diagnosis. In this work, a regularized power law (RPL) for the joint estimation of backscatter coefficient (BSC) and attenuation coefficient (AC) parameters was derived and tested with simulated phantoms and in vivo. For the RPL method, a total variation regularization term regarding the BSC and AC parameters were used. The results were compared with ground truth simulated values. An improvement of precision can be appreciated without compromising the accuracy by factor of 80% and 54% according to bias and coefficient of variation, respectively. The in vivo experiments showed comparable results of the algorithm with the literature (i.e. fibroadenoma:1.90 ± 0.31dB.cm-1.MHz-1, normal tissue: 0.62 ± 0.20dB.cm-1.MHz-1). The results suggest the RPL method has the potential to accurately and precisely estimating BSCs and ACs.",
keywords = "Attenuation Imaging, Backscatter Coefficient (BSC), Quantitative Ultrasound(QUS), Regularization",
author = "Romero, {Stefano E.} and Andres Coila and Lavarello, {Roberto J.}",
note = "Publisher Copyright: {\textcopyright} COPYRIGHT SPIE. Downloading of the abstract is permitted for personal use only.; 15th International Symposium on Medical Information Processing and Analysis, SIPAIM 2019 ; Conference date: 06-11-2019 Through 08-11-2019",
year = "2020",
doi = "10.1117/12.2542460",
language = "English",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
publisher = "SPIE",
editor = "Eduardo Romero and Natasha Lepore and Jorge Brieva",
booktitle = "15th International Symposium on Medical Information Processing and Analysis",
}