Fraunhofer-Institut für Produktionsanlagen und Konstruktionstechnik IPK

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Ein Verfahren zur Kalibrierung von Operationsmikroskopen für chirurgische Augmented-Reality Anwendungen

2012 , Winne, Christian , Stopp, Fabian , Reutter, Andreas , Keeve, Erwin

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Experimental evaluation of metal artifacts for an orbital image recording method for cone beam computed tomography

2012 , Stopp, Fabian , Käseberg, Marc , Winne, Christian , Engel, S. , Fehlhaber, Felix , Keeve, Erwin

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Overlay visualization in endoscopic ENT surgery

2011 , Winne, Christian , Khan, Martin , Stopp, Fabian , Jank, Emanuel , Keeve, Erwin

Purpose In endoscopic ENT surgery, the identification and localization of target structures is challenging-depth information is missing, relevant tissues could be hidden behind opaque material and image distortion affects the instrument handling. In this paper, a novel overlay visualization is presented that supports the surgeon by superimposing planning and navigation information on the endoscopic image. Method Target regions, which have been identified in preoperative CT data, are superimposed on the endoscopic image, allowing the use of guiding lines for distance visualization. To match the overlay information with the geometrically distorted endoscopic images, a new intraoperative calibration procedure has been developed. Results The accuracy of this new method has been verified by cadaver studies. Clinical evaluation in three paranasal sinus interventions was performed to show the intraoperative assistance and practicability with promising results. Conclusion The new techniques safely support the surgeon in locating target structures in the paranasal sinuses with little change in the actual workflow.

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Experimental evaluation of a conic image recording trajectory for 3D X-ray imaging

2011 , Stopp, Fabian , Käseberg, Marc , Winne, Christian , Keeve, Erwin

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Development and evaluation of a calibration method of an orbital x-ray imaging concept

2012 , Keeve, Erwin , Fehlhaber, Felix , Stopp, Fabian , Käseberg, Marc , Winne, Christian

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ORBIT - Open X-ray scanner for image-guided interventional surgery - development of concept

2011 , Stopp, Fabian , Käseberg, Marc , Winne, Christian , Marx, Björn , Dehler, Jürgen , Keeve, Erwin

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A projection access scheme for iterative reconstruction algorithms based on a reconstruction quality function

2011 , Käseberg, Marc , Stopp, Fabian , Winne, Christian , Keeve, Erwin

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SIRO: Simulation software for robot based intraoperative cone beam computed tomography

2012 , Käseberg, Marc , Stopp, Fabian , Melnik, S. , Winne, Christian , Keeve, Erwin

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Intraoperative Mensch-Maschine-Interaktion zur 3D-Röntgenbildgebung

2011 , Stopp, Fabian , Käseberg, Marc , Winne, Christian , Fehlhaber, Felix , Keeve, Erwin

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A conic image recording method for intraoperative 3D x-ray imaging

2011 , Stopp, Fabian , Winne, Christian , Käseberg, Marc , Keeve, Erwin

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