A Lung Phantom Model to Study Pulmonary Edema Using Lung Ultrasound Surface Wave Elastography

Jinling Zhou, Xiaoming Zhang

Research output: Contribution to journalArticle

1 Scopus citations

Abstract

Lung ultrasound surface wave elastography (LUSWE) is a novel technique used to measure superficial lung tissue stiffness. A phantom study was carried out in the study described here to evaluate the application of LUSWE to assess lung water for pulmonary edema. A lung phantom model with cellulose sponge was used; various volumes of water were injected into the sponge to model lung water. Shaker-generated surface wave propagation on the sponge surface was recorded by a 10-MHz ultrasound probe at three shaker frequencies: 100, 150 and 200 Hz. Surface wave speeds were calculated but did not exhibit dependence on the volume of injected water. However, the shear viscosity of the sponge increased with water content, and shear elasticity also exhibited a subtle increase. This study suggests that sponge viscoelasticity might change with the water content, which can be detected by LUSWE.

Original languageEnglish (US)
Pages (from-to)2400-2405
Number of pages6
JournalUltrasound in Medicine and Biology
Volume44
Issue number11
DOIs
StatePublished - Nov 1 2018

Keywords

  • Lung phantom
  • Lung ultrasound surface wave elastography
  • Pulmonary edema
  • Surface wave speed
  • Viscoelasticity

ASJC Scopus subject areas

  • Radiological and Ultrasound Technology
  • Biophysics
  • Acoustics and Ultrasonics

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