Abstract
Purpose
This study presents a new method that enables the detection of sentinel lymph nodes (SLN) with high sensitivity using indocyanine green (ICG) fluorescence imaging.
Methods
This study enrolled 128 patients with clinically node-negative breast cancer. Fluorescence imaging was obtained after ICG was injected into the areola. Subcutaneous lymphatic channels were immediately visible.
Results
Lymphatic channels and SLN were successfully visualized in all patients. One lymphatic channel was 60%, two channels were 24%, and three channels were 16%. The number of fluorescence SLN ranged from 1 to 6, and blue-dyed SLN ranged from 0 to 3. In the latter, SLN were not identified in 44 patients. Nineteen patients had pathologically identified lymph node metastases. All of them were recognized by fluorescence imaging, but 8 patients had lymph nodes with metastases were not identified by dye method.
Conclusion
This ICG fluorescence imaging technique is feasible and safe for detecting SLN in a less invasive manner than conventional mapping, with real-time observations.
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Abe, H., Mori, T., Umeda, T. et al. Indocyanine green fluorescence imaging system for sentinel lymph node biopsies in early breast cancer patients. Surg Today 41, 197–202 (2011). https://doi.org/10.1007/s00595-009-4254-8
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DOI: https://doi.org/10.1007/s00595-009-4254-8