ABSTRACT
Objective To discuss the feasibility and value of indocyanine green combined with methylene blue in sentinel lymph node biophy (SLNB) for patients with breast cancer.Methods 196 breast cancer patients who received surgery were studied.SLNB was performed by indocyanine green combined with methylene blue .Frozen section was performed,followed by conventional histopathology .The evaluation criterion of Louisvill University on SLNB was adopted to judge the detection rate ,accuracy rate,sensitivity,false negative rate.Results Among the 196 cases,196 cases were detected with SLN ( detection rate was 100.0%).SLN was all stained in 196 cases. Furthermore,56 cases had ALND metastasis,140 cases had no metastasis,and the sensitivity was 91.8%(56/61). The SLN and ALN fully complied with pathological examination in 191 cases,and the accuracy rate was 97.5%(191/196).Five cases were false negative,and the false negative rate was 8.2%(5 /61).No case was false positive.The total SLNs was 705,and average number of detected SLNs was 3.59 pieces(2-6 pieces).The average ALN was 17.66 pieces(12-26 pieces).Conclusion With the advantages of real-time visual,precise positioning,no radio-active pollution and reduce the operation difficulty ,indocyanine green joint methylene blue as lymph tracer shows high detection rate,accuracy when it is used for SLNB in patients with breast cancer ,it is worthy of clinical application.