A Manual Actuation System for Laser Induced Thermal Therapy of Malignant Brain Tumors

Granna, J; Graf, A; Nabavi, A; Burgner-Kahrs, J
16. Jahrestagung der Deutschen Gesellschaft für Computer- und Roboter-assistierte Chirurgie e.V, pp. 125–130, 2017
A Manual Actuation System for Laser Induced Thermal Therapy of Malignant Brain Tumors

Abstract


Irregularly shaped malignant brain tumors or those located deeply within the brain represent a specific challenge. Minimally invasive laser induced thermal therapy is a promising procedure to treat those tumors. However, straight conventional laser probes used for this technique are insufficient to treat irregularly shaped intracranial lesions, as it increases invasiveness. To reduce disruption of healthy brain tissue and improve the positioning of laser probes within the tumor volume, we present a new manual actuation system for laser induced thermal therapy in the brain. It utilizes a steerable device composed of two tubes to position the laser fiber within the tumor volume. As this technique is conducted within an MRI-scanner, we present the design of an MR-compatible manual actuation unit for actuation. For evaluation of the actuation unit prototype, an MR-compatibility and user study are performed.

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