gms | German Medical Science

129. Kongress der Deutschen Gesellschaft für Chirurgie

Deutsche Gesellschaft für Chirurgie

24.04. - 27.04.2012, Berlin

Strain measurement of abdominal aortic aneurysm with 3D ultrasound speckle tracking

Meeting Abstract

  • Peter Bihari - Klinikum der J.W. Goethe-Universität Frankfurt am Main, Klinik für Gefäß- und Endovascularchirurgie, Frankfurt am Main
  • A. Shelke - University of Applied Sciences, Abt. Forschung Weiterbildung Transfer, Frankfurt am Main
  • T. H. Nwe - University Medical Center, Philipps-University of Marburg/Lahn, Department of Cardiac and Thoracic Vascular Surgery, Marburg
  • K. Nelson - Klinikum der J.W. Goethe-Universität Frankfurt am Main, Klinik für Gefäß- und Endovascularchirurgie, Frankfurt am Main
  • O. Schellhaas - Klinikum der J.W. Goethe-Universität Frankfurt am Main, Klinik für Gefäß- und Endovascularchirurgie, Frankfurt am Main
  • A. Wittek - University of Applied Sciences, Computer Science and Engineering, Frankfurt am Main
  • C. Blase - University of Applied Sciences. Computer Science and Engineering, Frankfurt am Main
  • K. Karatolios - University Medical Center, Philipps-University of Marburg/Lahn, Department of Cardiac and Thoracic Vascular Surgery, Marburg
  • S. Vogt - University Medical Center, Philipps-University of Marburg/Lahn, Department of Cardiac and Thoracic Vascular Surgery, Marburg
  • S. Moosdorf - University Medical Center, Philipps-University of Marburg/Lahn, Department of Cardiac and Thoracic Vascular Surgery, Marburg
  • M. Meyn - Klinikum der J.W. Goethe-Universität Frankfurt am Main, Klinik für Gefäß- und Endovascularchirurgie, Frankfurt am Main
  • Thomas Schmandra - Klinikum der J.W. Goethe-Universität Frankfurt am Main, Klinik für Gefäß- und Endovascularchirurgie, Frankfurt / M.
  • P. Knez - Klinikum der J.W. Goethe-Universität Frankfurt am Main, Klinik für Gefäß- und Endovascularchirurgie, Frankfurt am Main
  • Thomas Schmitz-Rixen - J.W. Goethe-Universitätsklinikum, Klinik für Gefäß- und Endovascularchirurgie, Frankfurt am Main

Deutsche Gesellschaft für Chirurgie. 129. Kongress der Deutschen Gesellschaft für Chirurgie. Berlin, 24.-27.04.2012. Düsseldorf: German Medical Science GMS Publishing House; 2012. Doc12dgch470

DOI: 10.3205/12dgch470, URN: urn:nbn:de:0183-12dgch4700

Veröffentlicht: 23. April 2012

© 2012 Bihari et al.
Dieser Artikel ist ein Open Access-Artikel und steht unter den Creative Commons Lizenzbedingungen (http://creativecommons.org/licenses/by-nc-nd/3.0/deed.de). Er darf vervielfältigt, verbreitet und öffentlich zugänglich gemacht werden, vorausgesetzt dass Autor und Quelle genannt werden.


Gliederung

Text

Introduction: The main risk associated with abdominal aortic aneurysm is rupture caused by mechanical failure of the vascular tissue. Currently, available methods to assess biomechanical properties of aortic aneurysm tissue employ ex vivo material (tensile testing). However, to predict individual rupture risk it is necessary to determine biomechanical properties of the aneurysm in vivo, which until the present, have been limited to 2-dimensional analysis of the aorta (conventional sonography). Recently, 3-dimensional speckle tracking ultrasound has been introduced to measure biomechanical stress-strain parameters of the heart in vivo. The aim of this investigation was to establish and validate this 3D ultrasound method, applied to the abdominal aortic aneurysm.

Materials and methods: Wall motion of a silicone aorta aneurysm model, perfused in an artificial circulatory system, was measured simultaneously with a commercial real time 3D-echocardiography system (Artida, Toshiba Medical Systems, Tokyo, Japan) and by a laser-scan-micrometer. Data were analysed with MatLab Software and the results of the two methods were compared. Furthermore, 3D ultrasound data from the abdominal aorta from 10 healthy volunteers and 12 patients with abdominal aortic aneurysm were collected and the strain parameters were analysed.

Results: There was good correlation between strain parameters measured by 3D ultrasound and laser scan-micrometer (a highly accurate reference method). It was also possible to measure and analyse strain data obtained from the abdominal aorta of volunteers and from patients with abdominal aortic aneurysm.

Conclusion: The 3D ultrasound measurements correlated well with the laser scan-micrometer measurements of the silicone model. Furthermore, the 3D ultrasound speckle tracking method enabled the strain analysis of healthy and aneurysmic abdominal aorta in vivo.