期刊
JOURNAL OF NUCLEAR MEDICINE
卷 59, 期 11, 页码 1757-1760出版社
SOC NUCLEAR MEDICINE INC
DOI: 10.2967/jnumed.118.211888
关键词
image-guided surgery; prostate cancer; fluorescence; multiplexing; robotic surgery
资金
- Netherlands Cancer Institute-Antoni van Leeuwenhoek Hospital
To reduce the invasive nature of extended pelvic lymph node (LN) dissections in prostate cancer, we have developed a multispectral-fluorescence guidance approach that enables discrimination between prostate-draining LNs and lower-limb-draining LNs. Methods: In 5 pigs, multispectral-fluorescence guidance was used on da Vinci Si and da Vinci Xi robots. The animals received fluorescein into the lower limb and indocyanine green-nanocolloid into the prostate. Results: Fluorescein was detected in 29 LNs (average of 3.6 LNs/template), and indocyanine green-nanocolloid was detected in 12 LNs (average of 1.2 LNs/template). Signal intensities appeared equal for both dyes, and no visual overlap in lymphatic drainage patterns was observed. Furthermore, fluorescein supported both the identification of leakage from damaged lymphatic structures and the identification of ureters. Conclusion: We demonstrated that the differences in lymphatic flow pattern between the prostate and lower limbs could be intraoperatively distinguished using multispectral- fluorescence imaging.
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