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Proceedings Paper

Towards real-time guidewire detection and tracking in the field of neuroradiology
Author(s): Martin Spiegel; Marcus Pfister; Dieter Hahn; Volker Daum; Joachim Hornegger; Tobias Struffert; Arnd Dörfler
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Paper Abstract

Two-dimensional roadmapping is considered state-of-the-art in guidewire navigation during endovascular interventions. This paper presents a methodology for extracting the guidewire from a sequence of 2-D roadmap images in almost real time. The detected guidewire can be used to improve its visibility on noisy fluoroscopic images or to do a back projection of the guidewire into a registered 3-D vessel tree. A lineness filter based on the Hessian matrix is used to detect only those line structures in the image that lie within the vessel tree. Loose wire fragments are properly linked by a novel connection method fulfilling clinical processing requirements. We show that Dijkstra's algorithm can be applied to efficiently compute the optimal connection path. The entire guidewire is finally approximated by a B-spline curve in a least-squares manner. The proposed method is both integrated into a commercial clinical prototype and evaluated on five different patient data sets containing up to 249 frames per image series.

Paper Details

Date Published: 13 March 2009
PDF: 8 pages
Proc. SPIE 7261, Medical Imaging 2009: Visualization, Image-Guided Procedures, and Modeling, 726105 (13 March 2009); doi: 10.1117/12.811367
Show Author Affiliations
Martin Spiegel, Friedrich-Alexander Univ. Erlangen-Nuremberg (Germany)
Erlangen Graduate School in Advanced Optical Technologies (Germany)
Marcus Pfister, Siemens AG (Germany)
Dieter Hahn, Friedrich-Alexander Univ. Erlangen-Nuremberg (Germany)
Volker Daum, Friedrich-Alexander Univ. Erlangen-Nuremberg (Germany)
Joachim Hornegger, Friedrich-Alexander Univ. Erlangen-Nuremberg (Germany)
Erlangen Graduate School in Advanced Optical Technologies (Germany)
Tobias Struffert, Friedrich-Alexander Univ. Erlangen-Nuremberg (Germany)
Arnd Dörfler, Friedrich-Alexander Univ. Erlangen-Nuremberg (Germany)


Published in SPIE Proceedings Vol. 7261:
Medical Imaging 2009: Visualization, Image-Guided Procedures, and Modeling
Michael I. Miga; Kenneth H. Wong, Editor(s)

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