Using CT Lymphography and Dye for Sentinel Node Identification in Breast Cancer
Author Information
Author(s): Takahashi Masako, Sasa Mitsunori, Hirose Chieko, Hisaoka Sonoka, Taki Masako, Hirose Toshiyuki, Bando Yoshimi
Primary Institution: Tokushima Breast Care Clinic
Hypothesis
Combining CT lymphography with a dye-guided method improves sentinel node identification rates in breast cancer patients.
Conclusion
The combination of CT lymphography and dye-guided methods significantly enhances sentinel node identification rates, especially in obese patients.
Supporting Evidence
- SN identification rates were 96% with CTLG, 92% with the dye-guided method, and 99% with both methods combined.
- Identification rates were significantly lower in node-positive patients compared to node-negative patients.
- CTLG and the combined method were especially useful in patients with a body mass index of ≥ 25.
Takeaway
Doctors used two methods to find important lymph nodes in breast cancer patients, and using both together worked better than using just one.
Methodology
Sentinel node identification was performed using CT lymphography and a dye-guided method on 218 patients with primary breast cancer.
Potential Biases
Potential bias due to the reliance on imaging techniques that may not be uniformly available across institutions.
Limitations
CTLG may yield false-negative results in node-positive patients and those with vascular invasion.
Participant Demographics
218 Japanese patients with primary breast cancer, no clinical evidence of lymph node metastasis.
Statistical Information
P-Value
<0.05
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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