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Evaluation of a novel tomographic ultrasound device for abdominal examinations

Conventional ultrasound (US) is the first-line imaging method for abdominal pathologies, but its diagnostic accuracy is operator-dependent, and data storage is usually limited to two-dimensional images. A novel tomographic US system (Curefab CS, Munich, Germany) processes imaging data combined with...

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Autores principales: Blank, Valentin, Wiegand, Johannes, Keim, Volker, Karlas, Thomas
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Public Library of Science 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6594674/
https://www.ncbi.nlm.nih.gov/pubmed/31242250
http://dx.doi.org/10.1371/journal.pone.0218754
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author Blank, Valentin
Wiegand, Johannes
Keim, Volker
Karlas, Thomas
author_facet Blank, Valentin
Wiegand, Johannes
Keim, Volker
Karlas, Thomas
author_sort Blank, Valentin
collection PubMed
description Conventional ultrasound (US) is the first-line imaging method for abdominal pathologies, but its diagnostic accuracy is operator-dependent, and data storage is usually limited to two-dimensional images. A novel tomographic US system (Curefab CS, Munich, Germany) processes imaging data combined with three-dimensional spatial information using a magnetic field tracking. This enables standardized image presentation in axial planes and a review of the entire examination. The applicability and diagnostic performance of this tomographic US approach was analyzed in an abdominal setting using conventional US as reference. Tomographic US data were successfully compiled in all subjects of a training cohort (20 healthy volunteers) and in 50 patients with abdominal lesions. Image quality (35% and 79% for training and patient cohort respectively) and completeness of organ visualization (45% and 44%) were frequently impaired in tomographic US compared to conventional US. Conventional and tomographic US showed good agreement for measurement of organ sizes in the training cohort (right liver lobe and both kidneys with a median deviation of 5%). In the patient cohort, tomographic US identified 57 of 74 hepatic or renal lesions detected by conventional ultrasound (sensitivity 77%). In conclusion, this study illustrates the diagnostic potential of abdominal tomographic US, but current significant limitations of the tomographic ultrasound device demand further technical improvements before this and comparable approaches can be implemented in clinical practice.
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spelling pubmed-65946742019-07-05 Evaluation of a novel tomographic ultrasound device for abdominal examinations Blank, Valentin Wiegand, Johannes Keim, Volker Karlas, Thomas PLoS One Research Article Conventional ultrasound (US) is the first-line imaging method for abdominal pathologies, but its diagnostic accuracy is operator-dependent, and data storage is usually limited to two-dimensional images. A novel tomographic US system (Curefab CS, Munich, Germany) processes imaging data combined with three-dimensional spatial information using a magnetic field tracking. This enables standardized image presentation in axial planes and a review of the entire examination. The applicability and diagnostic performance of this tomographic US approach was analyzed in an abdominal setting using conventional US as reference. Tomographic US data were successfully compiled in all subjects of a training cohort (20 healthy volunteers) and in 50 patients with abdominal lesions. Image quality (35% and 79% for training and patient cohort respectively) and completeness of organ visualization (45% and 44%) were frequently impaired in tomographic US compared to conventional US. Conventional and tomographic US showed good agreement for measurement of organ sizes in the training cohort (right liver lobe and both kidneys with a median deviation of 5%). In the patient cohort, tomographic US identified 57 of 74 hepatic or renal lesions detected by conventional ultrasound (sensitivity 77%). In conclusion, this study illustrates the diagnostic potential of abdominal tomographic US, but current significant limitations of the tomographic ultrasound device demand further technical improvements before this and comparable approaches can be implemented in clinical practice. Public Library of Science 2019-06-26 /pmc/articles/PMC6594674/ /pubmed/31242250 http://dx.doi.org/10.1371/journal.pone.0218754 Text en © 2019 Blank et al http://creativecommons.org/licenses/by/4.0/ This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
spellingShingle Research Article
Blank, Valentin
Wiegand, Johannes
Keim, Volker
Karlas, Thomas
Evaluation of a novel tomographic ultrasound device for abdominal examinations
title Evaluation of a novel tomographic ultrasound device for abdominal examinations
title_full Evaluation of a novel tomographic ultrasound device for abdominal examinations
title_fullStr Evaluation of a novel tomographic ultrasound device for abdominal examinations
title_full_unstemmed Evaluation of a novel tomographic ultrasound device for abdominal examinations
title_short Evaluation of a novel tomographic ultrasound device for abdominal examinations
title_sort evaluation of a novel tomographic ultrasound device for abdominal examinations
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6594674/
https://www.ncbi.nlm.nih.gov/pubmed/31242250
http://dx.doi.org/10.1371/journal.pone.0218754
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