Abstract
To evaluate the relationship between the clearance rate of technetium-99m methoxyisobutylisonitrile ((99m)Tc-MIBI) in scintimammography and the efficacy of neoadjuvant chemotherapy (NCT) of patients with operable breast cancer. Seventy-eight patients with breast cancer underwent (99m)Tc-MIBI scintimammography at pre-NCT. And static planar images were taken at 10 min and 180 min post-scintimammography. The clearance rate was calculated in each patient. And the efficacy of NCT was evaluated after 2 cycles. The clearance rates of patients with a poor or good efficacy of chemotherapy were 24.21% ± 6.38% (n = 14) and 14.13% ± 5.98% (n = 64) respectively. There was significant difference between two groups. And a significant correlation was observed between the efficacy of chemotherapy and the clearance rate of (99m)Tc-MIBI (r = -0.539, P < 0.001). The scintimammography of (99m)Tc-MIBI may be employed to evaluate the efficacy of NCT.
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