Piezoelectric Self-Sensing System for Tactile Intraoperative Brain Tumor Delineation in Neurosurgery

authored by: David Oliva Uribe, Ralf Stroop, Jörg Wallaschek
Abstract: Mechanical characteristics of tumor and healthy tissue in the brain differ but slightly. The task of designing a system that is able to differentiate tissue dignity with high sensitivity is of great importance in neurosurgery. Even when localization of tumor by use of preoperative imaging techniques provides the surgeon with valuable information to decide where and what to resect, the brain shift due to change in pressure during skull opening demands the surgeon to define the limits of the tumor using tactile and visual differentiation. This paper contains a general description of the tactile sensor system based on a piezoelectric bimorph. The main parts of the measurement system are described and the selection of the electrical parameters for tactile differentiation is justified. Results are discussed for a series of measurements at different concentrations in gelatin phantoms.
Organisation(s): Institute of Dynamics and Vibration Research
External Organisation(s): University of Duisburg-Essen
Type: Conference contribution
Pages: 737-740
No. of pages: 4
Publication date: 13.11.2009
Publication status: Published
Peer reviewed: Yes
ASJC Scopus subject areas: Cell Biology, Developmental Biology, Biomedical Engineering, General Medicine
Electronic version(s): https://doi.org/10.1109/IEMBS.2009.5332409 (Access: Closed)

BibTeX

@inproceedings{d6385b466c40436d92671135f3f786cc,
title = "Piezoelectric Self-Sensing System for Tactile Intraoperative Brain Tumor Delineation in Neurosurgery",
abstract = "Mechanical characteristics of tumor and healthy tissue in the brain differ but slightly. The task of designing a system that is able to differentiate tissue dignity with high sensitivity is of great importance in neurosurgery. Even when localization of tumor by use of preoperative imaging techniques provides the surgeon with valuable information to decide where and what to resect, the brain shift due to change in pressure during skull opening demands the surgeon to define the limits of the tumor using tactile and visual differentiation. This paper contains a general description of the tactile sensor system based on a piezoelectric bimorph. The main parts of the measurement system are described and the selection of the electrical parameters for tactile differentiation is justified. Results are discussed for a series of measurements at different concentrations in gelatin phantoms.",
author = "Uribe, {David Oliva} and Ralf Stroop and J{\"o}rg Wallaschek",
note = "Copyright: Copyright 2018 Elsevier B.V., All rights reserved.; 31st Annual International Conference of the IEEE Engineering in Medicine and Biology Society: Engineering the Future of Biomedicine, EMBC 2009 ; Conference date: 02-09-2009 Through 06-09-2009",
year = "2009",
month = nov,
day = "13",
doi = "10.1109/IEMBS.2009.5332409",
language = "English",
isbn = "9781424432967",
series = "Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society",
publisher = "IEEE Computer Society",
pages = "737--740",
booktitle = "2009 Annual International Conference of the IEEE Engineering in Medicine and Biology Society",
address = "United States",
}