gms | German Medical Science

84. Jahresversammlung der Deutschen Gesellschaft für Hals-Nasen-Ohren-Heilkunde, Kopf- und Hals-Chirurgie e. V.

Deutsche Gesellschaft für Hals-Nasen-Ohren-Heilkunde, Kopf- und Hals-Chirurgie e. V.

08.05. - 12.05.2013, Nürnberg

Navigation raises the security and efficiency of ultrasound-guided cannulations: a preclinical trial

Meeting Abstract

  • author presenting/speaker Verena Constanze Meiser - Klinik und Poliklinik für Hals-, Nasen- und Ohrenheilkunde, Universitätsklinikum Jena, Jena, Germany
  • author Helene Kreysa - Institut für Psychologie der Friedrich-Schiller-Universität Jena, Jena, Germany
  • author Orlando Guntinas-Lichius - Klinik und Poliklinik für Hals-, Nasen- und Ohrenheilkunde, Universitätsklinikum Jena, Jena, Germany
  • corresponding author Gerd Fabian Volk - Klinik und Poliklinik für Hals-, Nasen- und Ohrenheilkunde, Universitätsklinikum Jena, Jena, Germany

German Society of Oto-Rhino-Laryngology, Head and Neck Surgery. 84th Annual Meeting of the German Society of Oto-Rhino-Laryngology, Head and Neck Surgery. Nürnberg, 08.-12.05.2013. Düsseldorf: German Medical Science GMS Publishing House; 2013. Doc13hno04

doi: 10.3205/13hno04, urn:nbn:de:0183-13hno048

Veröffentlicht: 30. Juli 2013

© 2013 Meiser 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 navigation system of the company eZono AG (Jena) can superimpose the position of the needle and the intersection of the needlepoint with the ultrasound-area while ultrasound-guided cannulations. To use this system should perspectivally increase the efficiency of ultrasound-guided cannulations.

Methods and material: 24 medical students without prior knowledge cannulated an ultrasound-phantom in pseudorandomised order in a pre-clinical trial after short standardized introductions in four settled terms. B1: “in plane”-cannulation without navigation, B2 “out of plane”-cannulation without navigation, B3 “in plane”-cannulation with navigation and B4 “out of plane”-cannulation with navigation. The students had five minutes in each settled term to do as much cannulations as possible. Camcorders and the ultrasound scanner recorded all experiments completely.

Results: “Out of plane”-cannulation with navigation (B4) in comparison to cannulations without navigation (B2) increased the accuracy from 1.5 hits (SD: 2.0) to 5.4 hits (SD: 3.1; p<0.001). It was also less time needed to hit the target the very first time from mean 81.2 sec. (SD: 89.0) in B2 to 30.7 sec. (SD: 26.9; p=0.009) in B4. The number of total hits increased from 5 hits (SD: 2.9) in B2 to 7 hits (SD: 2.8; p=0.004) in B4.

Conclusion: The navigation in “out of plane”-technique increases the security as well as the efficiency of ultrasound-guided cannulations on the phantom. This technology promises a lot of important advances in clinical background not only for fine needle biopsies but also for vessel cannulations and in the conductive anesthesia.