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Custom-made phantoms for thoracic ultrasound diagnostic and therapeutic applications in clinical practice

Ana Belén Llanos-González, Natalia Arteaga-Marrero, Enrique Villa, Marta Elena Gómez Gil, Ana Martín Medina, Orlando Acosta Fernández, Nuria Mañes Bonet, Juan Bautista Ruiz-Alzola, Javier González-Fernández
European Respiratory Journal 2020 56: 2782; DOI: 10.1183/13993003.congress-2020.2782
Ana Belén Llanos-González
1Department of Pneumology, University Hospital of Canarias, SANTA CRUZ DE TENERIFE, Spain
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  • For correspondence: a22b24@gmail.com
Natalia Arteaga-Marrero
2IACTEC Medical Technology Group, Instituto de Astrofísica de Canarias (IAC), SANTA CRUZ DE TENERIFE, Spain
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Enrique Villa
2IACTEC Medical Technology Group, Instituto de Astrofísica de Canarias (IAC), SANTA CRUZ DE TENERIFE, Spain
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Marta Elena Gómez Gil
3Department of Radiology, University Hospital of Canarias , SANTA CRUZ DE TENERIFE, Spain
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Ana Martín Medina
1Department of Pneumology, University Hospital of Canarias, SANTA CRUZ DE TENERIFE, Spain
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Orlando Acosta Fernández
1Department of Pneumology, University Hospital of Canarias, SANTA CRUZ DE TENERIFE, Spain
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Nuria Mañes Bonet
4Department of Thoracic Surgery, University Hospital of Canarias , SANTA CRUZ DE TENERIFE, Spain
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Juan Bautista Ruiz-Alzola
5Department of Signals and Communications, Research Institute in Biomedical and Health Sciences (IUIBS), University of Las Palmas de Gran Canaria , LAS PALMAS DE GRAN CANARIA, Spain
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Javier González-Fernández
6Department of Biomedical Engineering, Instituto Tecnológico de Canarias (ITC), SANTA CRUZ DE TENERIFE, Spain
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Abstract

Introduction and Aim: Ultrasound (US) provides valuable information in pathologies related to the lung parenchyma that are in direct contact with the pleura.The aim of this work was to design custom-made low-cost phantoms, whose characteristics mimic the lung parenchyma, to aid professionals in thoracic US imaging. Such phantoms would allow them to gain diagnostic and therapeutic capabilities in a clinical setting, in which infectious and neoplastic etiology diseases present a high prevalence.

Methods: Water-based phantoms were fabricated using a 10% concentration of Polyvinyl Alcohol Cryogel (PVA-C) as gelling agent. Cellulose (20 mm) was employed as acoustic scatter at 1% concentration.In order to mimic the pathologies of interest, such as neoplasia or pleural effusion, different spherical inclusions, filled with solid or liquid, were placed at variable depths.

Results: US characterization of each fabricated phantom was performed using a standard clinical US system (Z6 Mindray).Acquired images confirmed the similarity of the fabricated phantoms with the normal lung parenchyma.Furthermore, the measured speed of sound was within the limits of soft tissues reported in the literature. In addition, ultrasound images of the inclusions were validated. Interobserver variability did not affect the characteristics of the phantoms.

Conclusion: The availability of these phantoms simulating the lung parenchyma provides tools to gain capabilities in the use of US imaging. Therefore, earlier and improved diagnosis of several pathologies could be achieved as well as faster and more precise interventions. Thus, the number of invasive surgical procedures and their associated costs would be reduced.

  • Lung cancer
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Footnotes

Cite this article as: European Respiratory Journal 2020; 56: Suppl. 64, 2782.

This abstract was presented at the 2020 ERS International Congress, in session “Respiratory viruses in the "pre COVID-19" era”.

This is an ERS International Congress abstract. No full-text version is available. Further material to accompany this abstract may be available at www.ers-education.org (ERS member access only).

  • Copyright ©the authors 2020
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Custom-made phantoms for thoracic ultrasound diagnostic and therapeutic applications in clinical practice
Ana Belén Llanos-González, Natalia Arteaga-Marrero, Enrique Villa, Marta Elena Gómez Gil, Ana Martín Medina, Orlando Acosta Fernández, Nuria Mañes Bonet, Juan Bautista Ruiz-Alzola, Javier González-Fernández
European Respiratory Journal Sep 2020, 56 (suppl 64) 2782; DOI: 10.1183/13993003.congress-2020.2782

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Custom-made phantoms for thoracic ultrasound diagnostic and therapeutic applications in clinical practice
Ana Belén Llanos-González, Natalia Arteaga-Marrero, Enrique Villa, Marta Elena Gómez Gil, Ana Martín Medina, Orlando Acosta Fernández, Nuria Mañes Bonet, Juan Bautista Ruiz-Alzola, Javier González-Fernández
European Respiratory Journal Sep 2020, 56 (suppl 64) 2782; DOI: 10.1183/13993003.congress-2020.2782
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