Freehand tomographic nuclear imaging using tracked high-energy gamma probes

Okur A, Shakir DI, Matthies P, Hartl A, Ziegler SI, Essler M, Lasser T, Navab N (2013)

Publication Type: Conference contribution

Publication year: 2013

Journal

Informatik aktuell Gesellschaft für Informatik (GI)

Publisher: Kluwer Academic Publishers

Pages Range: 362-367

Conference Proceedings Title: Informatik aktuell

Event location: Heidelberg, DEU

ISBN: 9783642364792

DOI: 10.1007/978-3-642-36480-8_63

Abstract

Systems allowing freehand SPECT imaging inside the operating room have been introduced previously. In this work, we aim to take one step further and enable 3D freehand imaging using positron emitting radio-traces such as [18F]FDG. Our system combines a high-energy gamma probe with an optical tracking system. Detection of the 511keV annihilation gammas from positron-emitting radio-tracers is modeled analytically. The algorithm iteratively reconstructs the radioactivity distribution within a localized volume of interest. Based on the PET/CT data of 7 patients with tumors and lymph node metastases in the head and neck region, we build a neck phantom with [18F]FDG-filled reservoirs representing tumors and lymph nodes. Using this phantom, we investigate the limitations and capabilities of our method. Finally, we discuss possible improvements and requirements needed so that our approach becomes clinically applicable.

Involved external institutions

Technische Universität München (TUM) DE Germany (DE) Klinikum rechts der Isar DE Germany (DE)

How to cite

APA:

Okur, A., Shakir, D.I., Matthies, P., Hartl, A., Ziegler, S.I., Essler, M.,... Navab, N. (2013). Freehand tomographic nuclear imaging using tracked high-energy gamma probes. In Hans-Peter Meinzer, Thomas Martin Deserno, Heinz Handels, Thomas Tolxdorff (Eds.), Informatik aktuell (pp. 362-367). Heidelberg, DEU: Kluwer Academic Publishers.

MLA:

Okur, Asli, et al. "Freehand tomographic nuclear imaging using tracked high-energy gamma probes." Proceedings of the Workshops Bildverarbeitung fur die Medizin: Algorithmen - Systeme - Anwendungen, BVM 2013 - Workshop on Image Processing for Medicine: Algorithms - Systems - Applications, BVM 2013, Heidelberg, DEU Ed. Hans-Peter Meinzer, Thomas Martin Deserno, Heinz Handels, Thomas Tolxdorff, Kluwer Academic Publishers, 2013. 362-367.

BibTeX: Download