gms | German Medical Science

56. Jahrestagung der Deutschen Gesellschaft für Neurochirurgie e. V. (DGNC)
3èmes journées françaises de Neurochirurgie (SFNC)

Deutsche Gesellschaft für Neurochirurgie e. V.
Société Française de Neurochirurgie

07. bis 11.05.2005, Strasbourg

Neuronavigation without preoperative Navigation CT / MRI: cost and time effective 3D Ultrasound Neuronavigation for surgical therapy of brain lesions

Neuronavigation ohne präoperative Navigations CT / MRT: Kosten- und zeitsparende 3D-Ultraschallnavigation zur neurochirurgischen Behandlung von Hirnläsionen

Meeting Abstract

  • corresponding author U. Hubbe - Neurochirurgische Universitätsklinik Freiburg Abteilung Allgemeine Neurochirurgie
  • V. I. Vougioukas - Neurochirurgische Universitätsklinik Freiburg Abteilung Allgemeine Neurochirurgie
  • M. Shah - Neurochirurgische Universitätsklinik Freiburg Abteilung Allgemeine Neurochirurgie
  • V. van Velthoven - Neurochirurgische Universitätsklinik Freiburg Abteilung Allgemeine Neurochirurgie

Deutsche Gesellschaft für Neurochirurgie. Société Française de Neurochirurgie. 56. Jahrestagung der Deutschen Gesellschaft für Neurochirurgie e.V. (DGNC), 3èmes journées françaises de Neurochirurgie (SFNC). Strasbourg, 07.-11.05.2005. Düsseldorf, Köln: German Medical Science; 2005. Doc11.05.-16.06

Die elektronische Version dieses Artikels ist vollständig und ist verfügbar unter: http://www.egms.de/de/meetings/dgnc2005/05dgnc0261.shtml

Veröffentlicht: 4. Mai 2005

© 2005 Hubbe 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 vervielf&aauml;ltigt, verbreitet und &oauml;ffentlich zug&aauml;nglich gemacht werden, vorausgesetzt dass Autor und Quelle genannt werden.


Gliederung

Text

Objective

To evaluate the suitability of cost and time effective Neuronavigation based only on intraoperatively acquired 3D Ultrasound dataset with neither preoperative Navigation data acqusition nor patient registration procedure.

Methods

13 patients with intracerebral lesions were selected for open surgery using the SonoWand 3D US-navigation system according to the dignity, extend and localisation of the lesion. The SonoWand system uses a 4-8 MHz phased array probe tracked by a passive infrared camera system for acquisition of 3-D-Ultrasound datasets. Thus beside conventional navigation based on preoperative CT or MRI datasets it is possible to navigate in intraoperative “realtime” datasets and therefore overcoming the brainshift problem. Additionally navigation in an intraoperative acquired 3D dataset is available without the need for registration of preoperative images. Hereby time, costs and organisation for acquisition of preoperative image datasets can be avoided. This is a major difference to other navigation systems. Navigation in the cases reported here was perfomed using intraoperative 3-D datasets only.

Results

In all 13 Patients sufficient 3-D Ultrasound datasets could be obtained. High quality of the US image data enabled adequate image interpretation thus resulting in a steep learning curve. In all cases target and regions of risk were detectable and the information achieved was judged helpful by the surgeon. The system required a preparation time of below 4 min (including mounting of the patient tracker to the mayfield clamp, draping of the US probe and definition of the patient position), which is a tolerable delay even in emergencies.

Conclusions

3D Ultrasound Neuronavigation using the SonoWand System based on intraoperatively acquired 3D Ultrasound dataset only has proved to be suitable for surgical therapy of brain lesions in selected patients. In our preliminary experiences this is suitable in about half of all cases in which 3D neuronavigation is required. This technique avoids the need for acquisition of preoperative datasets and patient’s registration. Thus navigation can be performed with less expense of time, costs and organisation.