1. Articles from Alf Giese

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    1. Evaluation of a Completely Robotized Neurosurgical Operating Microscope

      Evaluation of a Completely Robotized Neurosurgical Operating Microscope

      BACKGROUND: Operating microscopes are essential for most neurosurgical procedures. Modern robot-assisted controls offer new possibilities, combining the advantages of conventional and automated systems. OBJECTIVE: We evaluated the prototype of a completely robotized operating microscope with an integrated optical coherence tomography module. METHODS: A standard operating microscope was fitted with motors and control instruments, with the manual control mode and balance preserved. In the robot mode, the microscope was steered by a remote control that could be fixed to a surgical instrument. External encoders and accelerometers tracked microscope movements. The microscope was additionally fitted with an optical coherence tomography-scanning module. RESULTS ...

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    2. 3-D intraoperative imaging combining an operating microscope with optical coherence tomography (OCT)

      Objective Optical coherence tomography (OCT) allows non-contact/non-invasive analysis of tissues with a penetration depth of 2–3 mm reaching a spatial resolution of approximately 4–15 μm. This resolution is compatible with the resolution of modern operation microscopes. Aim of this work was to provide a three-dimensional (3D) intraoperative visualization of tissue structures. Material and methods A high-speed spectral domain OCT (a modified version of the Ganymed, Thorlabs HL) was adapted to a motorized operation microscope (HR 1000, Möller-Wedel). Via a specially designed two axis-scanner, the 840 nm OCT was adapted directly to a camera port of the operation ...
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    1-2 of 2
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    1. (1 articles) Universität Rostock
    2. (1 articles) University of Lübeck
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