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Optical Techniques for Navigation during in Stereotactic Neurosurgery
Linköping University, Department of Biomedical Engineering, Biomedical Instrumentation.
2016 (English)In: Sensors and materials, ISSN 0914-4935, Vol. 28, no 10, 1105-1116 p.Article in journal (Refereed) Published
Abstract [en]

Optical techniques are becoming increasingly important in healthcare, as both therapeutic anddiagnostic tools. In neurosurgery, photonic technologies such as the microscope have alreadyfound widespread use. The overall aim of this paper is to give an overview of optical monitoringmethods and their implementation and use in stereotactic and functional neurosurgery. Thedevelopment steps presented in this paper range from radiofrequency-lesion size estimationusing optics to a system adapted for neurosurgical intraoperative navigation during stereotacticdeep brain stimulation (DBS) lead implantations. The two main optical methods implemented asintraoperative guidance tools are laser Doppler flowmetry and diffuse reflectance spectroscopy.By combining these fundamental methods with probe designs adapted to stereotactic systems,vessels can be tracked and "bar-codes" of tissue type along pre-defined trajectories used for DBS implantations identified. Examples of the optical methods used in relation to stereotactic DBS implantations are given. 

Place, publisher, year, edition, pages
2016. Vol. 28, no 10, 1105-1116 p.
Keyword [en]
deep brain stimulation (DBS), neuronavigation, laser Doppler flowmetry (LDF), diffusereflectance spectroscopy, radiofrequency (RF) lesioning
National Category
Medical Engineering
Identifiers
URN: urn:nbn:se:liu:diva-132178OAI: oai:DiVA.org:liu-132178DiVA: diva2:1038911
Available from: 2016-10-20 Created: 2016-10-20 Last updated: 2016-10-20

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http://dx.doi.org/10.18494/SAM.2016.1272

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Wårdell, Karin
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