Medizinische Universität Graz Austria/Österreich - Forschungsportal - Medical University of Graz
Gewählte Publikation:
SHR Neuro Krebs Kardio Lipid Stoffw Microb
Johannsmann, D; Langhoff, A; Bode, B; Mpoukouvalas, K; Heimann, A; Kempski, O; Charalampaki, P.
Towards in vivo differentiation of brain tumor versus normal tissue by means of torsional resonators
SENSOR ACTUAT A-PHYS. 2013; 190: 25-31.
Doi: 10.1016/j.sna.2012.10.039
Web of Science
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- Charalampaki Patra
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- Abstract:
- It was tested to what extend torsional acoustic resonators can serve to in vivo differentiate between healthy and tumorous brain tissue. The resonators employed consist of crystalline quartz. They are cylindrically shaped. The resonance frequency at the fundamental is 78 kHz. The best correlation between the shifts of resonance frequency and resonance bandwidth, on the one hand, and the state of the tissue, on the other, was found when analyzing ratios of the shifts in resonance frequency and resonance bandwidth. These ratios are independent of contact area. Taking data on the fundamental mode as well as the third overtone further improved the efficiency and precision of the technique. These results suggest that torsional resonators can serve as diagnostic tools in neurosurgery. (C) 2012 Elsevier B.V. All rights reserved.
- Find related publications in this database (Keywords)
- Torsional resonators
- Piezoelectric sensors
- Acoustic sensor
- Neurosurgery