SIMULATION MODEL FOR ASSESSING QUALITY OF ULTRASOUND STRAIN ESTIMATION IN ABDOMINAL AORTIC ANEURYSM

被引：6

作者：

Brekken, Reidar ^{[1
,2
]}

Muller, Sebastien ^{[1
]}

Gjerald, Sjur U. ^{[2
]}

Hernes, Toril A. Nagelhus ^{[1
,2
]}

机构：

[1] SINTEF, Dept Med Technol, N-7034 Trondheim, Norway

[2] Norwegian Univ Sci & Technol, Dept Circulat & Med Imaging, N-7034 Trondheim, Norway

来源：

ULTRASOUND IN MEDICINE AND BIOLOGY | 2012年 / 38卷 / 05期

关键词：

Ultrasound; Strain; Simulation; Abdominal aortic aneurysm; Biomechanics; FLUID-STRUCTURE INTERACTION; MECHANICAL-PROPERTIES; WALL STRESS; RUPTURE; RISK;

D O I：

10.1016/j.ultrasmedbio.2012.01.007

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

The purpose of this study was to develop a simulation model for evaluating methods for ultrasound strain estimation in abdominal aortic aneurysms. Wall geometry was obtained from a real ultrasound image and wall motion was simulated applying realistic blood pressures to a nonlinear viscoelastic wall model. The ultrasound simulation included speckle, absorption and angle dependent reflection. Gaussian white noise was added to simulate various noise levels. Despite not fully replicating real ultrasound images, the model simulated realistic circumferential variations in intensity and realistic speckle patterns and has potential for initial evaluation of strain estimation methods. (E-mail: reidar.brekken@sintef.no) (C) 2012 World Federation for Ultrasound in Medicine & Biology.

引用

页码：889 / 896

页数：8

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