Lung Ultrasound Surface Wave Elastography: A Pilot Clinical Study

A lung ultrasound surface wave elastography (LUSWE) technique is developed to measure superficial lung tissue elastic properties. The purpose of this paper was to translate LUSWE into clinical studies for assessing patients with interstitial lung disease (ILD) and present the pilot data from lung me...

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Vydáno v:IEEE transactions on ultrasonics, ferroelectrics, and frequency control Ročník 64; číslo 9; s. 1298 - 1304
Hlavní autoři: Zhang, Xiaoming, Osborn, Thomas, Zhou, Boran, Meixner, Duane, Kinnick, Randall R., Bartholmai, Brian, Greenleaf, James F., Kalra, Sanjay
Médium: Journal Article
Jazyk:angličtina
Vydáno: United States IEEE 01.09.2017
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Témata:
Aged
Computed tomography
Diseases
Elastic properties
Elasticity Imaging Techniques - methods
Elastography
Female
Fibrosis
Humans
Interstitial lung disease (ILD)
lung
Lung - diagnostic imaging
Lung - physiology
Lung diseases
Lungs
Male
Middle Aged
Patients
Pilot Projects
Properties (attributes)
Radiography
surface wave elastography (SWE)
Surface waves
Ultrasonic imaging
Ultrasonic variables measurement
ultrasound
Vibrations
wave speed
ISSN:0885-3010, 1525-8955, 1525-8955
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Shrnutí:A lung ultrasound surface wave elastography (LUSWE) technique is developed to measure superficial lung tissue elastic properties. The purpose of this paper was to translate LUSWE into clinical studies for assessing patients with interstitial lung disease (ILD) and present the pilot data from lung measurements on 10 healthy subjects and 10 patients with ILD. ILD includes multiple lung disorders in which the lung tissue is distorted and stiffened by tissue fibrosis. Chest radiography and computed tomography are the most commonly used techniques for assessing lung disease, but they are associated with radiation and cannot directly measure lung elastic properties. LUSWE provides a noninvasive and nonionizing technique to measure the elastic properties of superficial lung tissue. LUSWE was used to measure regions of both lungs through six intercostal spaces for patients and healthy subjects. The data are presented as wave speed at 100, 150, and 200 Hz at the six intercostal spaces. As an example, the surface wave speeds are, respectively, 1.88 ± 0.11 m/s at 100 Hz, 2.74 ± 0.26 m/s at 150 Hz, and 3.62 ± 0.13 m/s at 200 Hz for a healthy subject in the upper right lung; this is in comparison to measurements from an ILD patient of 3.3 ± 0.37 m/s at 100 Hz, 4.38 ± 0.33 m/s at 150 Hz, and 5.24 ± 0.44 m/s at 200 Hz in the same lung space. Significant differences in wave speed between healthy subjects and ILD patients were found. LUSWE is a safe and noninvasive technique which may be useful for assessing ILD.
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ISSN:0885-3010
1525-8955
1525-8955
DOI:10.1109/TUFFC.2017.2707981