Chair for Computer Aided Medical Procedures & Augmented Reality
Lehrstuhl für Informatikanwendungen in der Medizin & Augmented Reality

G. H. KleinJan?, N. S. van den Berg, M. N. van Oosterom, T. Wendler, M. Miwa, A. Bex, K. Hendricksen, S. Horenblas, F.W.B. van Leeuwen
Toward (Hybrid) Navigation of a Fluorescence Camera in an Open Surgery Setting
J Nucl Med 57(10):1650-1653. (bib)

With the introduction of the hybrid tracer indocyanine green (ICG)-99mTc-nanocolloid, a direct relation between preoperative imaging and intraoperative fluorescence guidance was established. However, fluorescence guidance remains limited by its superficial nature. This study evaluated the feasibility of a nuclear medicine-based navigation concept that allowed intraoperative positioning of a fluorescence camera (FC) in the vicinity of preoperatively defined ICG-99mTc-nanocolloid containing sentinel nodes (SNs). METHODS: Five patients with penile cancer scheduled for SN biopsy were injected with ICG-99mTc-nanocolloid followed by preoperative SPECT/CT imaging. The navigation device was used to provide a real-time augmented reality overlay of the SPECT/CT images and video output of the FC. This overlay was then used for FC navigation. RESULTS: SPECT/CT identified 13 SNs in 9 groins. FC navigation was successful for all 12 intraoperatively evaluated SNs (average error, 8.8 mm; range, 0-20 mm). CONCLUSION: This study reveals the potential benefits of FC navigation during open surgery procedures.
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