Abstract
Background
We previously demonstrated that the density of tumor enhancement by intravenous digital subtraction angiography (IV-DSA) is correlated with the number of tumor microvessels and that the incidence of distant metastasis is high in patients with breast cancer who show a high maximum density of tumor enhancement (MAX) on IV-DSA. In the present study, we evaluated the prognostic value of MAX for node-negative breast cancer patients.
Patients and Methods
A total of 128 node-negative breast cancer patients underwent preoperative IV-DSA, and the region of interest (ROI) was set in the areas enhanced by IV-DSA of the breast. MAX was calculated by the time-density curve. Patients were divided into two subgroups: those with MAX ≥9 (n=35) and those with MAX <9 (n=93).
Results
Patients with recurrence had a significantly higher MAX value than those without recurrence (11.8±3.8 vs 7.1 ±3.0, p<0.01). The disease-free survival rate was significantly worse in patients with higher MAX values than in those with lower MAX values (p<0.001). Multivariate analysis showed that MAX was the strongest predictor of disease-free survival (p=0.026).
Conclusions
These results suggest that the maximum density obtained by IV-DSA is a strong, independent prognostic indicator for node-negative breast cancer patients.
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Abbreviations
- IV-DSA:
-
Intravenous digital subtraction angiography
- MAX:
-
Maximum density of tumor enhancement
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Watanabe, O., Haga, S., Shimizu, T. et al. Maximum density of tumor staining obtained by preoperative IV-DSA as a prognostic indicator for node-negative breast cancer. Breast Cancer 6, 365–369 (1999). https://doi.org/10.1007/BF02966455
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DOI: https://doi.org/10.1007/BF02966455