Quantitative Characterization of Concentrated Cell Pellet Biophantoms using Statistical Models for the Ultrasound Echo Envelope

被引：10

作者：

Cristea, A. ^{[1
,2
,3
,4
,5
]}

Franceschini, E. ^{[6
]}

Lin, F. ^{[1
,2
,3
,4
,5
]}

Mamou, J. ^{[7
]}

Cachard, C. ^{[1
,2
,3
,4
,5
]}

Basset, O. ^{[1
,2
,3
,4
,5
]}

机构：

[1] Univ Lyon, CREATIS, Villeurbanne, France

[2] CNRS, UMR5220, F-75700 Paris, France

[3] INSERM, U1044, F-75654 Paris 13, France

[4] INSA Lyon, Villeurbanne, France

[5] Univ Lyon 1, F-69622 Villeurbanne, France

[6] Aix Marseille Univ, Cent Marseille, CNRS UPR 7051, LMA, F-13402 Marseille 20, France

[7] Riverside Res, FL Lizzi Ctr Biomed Engn, New York, NY USA

来源：

Proceedings of the 2015 ICU International Congress on Ultrasonics | 2015年 / 70卷

关键词：

Tissue Characterization; Nakagami distribution; Homodyned-K distribution; cell pellet biophantoms; concentrated media;

D O I：

10.1016/j.phpro.2015.08.233

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Statistical analysis is performed on the envelopes of ultrasonic backscattered signals from concentrated human leukemia cell pellet biophantoms. Two statistical distributions (Nakagami and Homodyned-K) are used to assess scatterer concentration. Seven concentrations ranging from 0.006 to 0.30 (corresponding to 3 to 250 scatterers per resolution cell at 25 and 35MHz) are considered. The values of the Nakagami parameter m increase with the number of scatterers per resolution cell but plateaus around 1 for concentrations greater than 0.03, while the Homodyned-K parameter alpha continued to increase and does not plateau, even if the estimation is less precise. (C) 2015 The Authors. Published by Elsevier B.V.

引用

页码：1091 / 1095

页数：5

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