PET—C畛断乳腺癌及其腋窝淋巴结转移的价值

目的探讨PET—CT对诊断乳腺癌及腋窝淋巴结转移情况的临床价值。方法选取行PET—CT检查的乳腺肿瘤患者40例，根据术后病理检查结果评价PET—CT对原发病灶定性和判断腋窝淋巴结转移情况的准确性并与腋窝淋巴结清扫情况进行比较；检验原发肿瘤病灶病理直径大小与超声、PET—CT诊断的一致性及其与标准化摄取值（SUV）值的相关性。结果PET—CT对乳腺癌的定性诊断准确率95％、灵敏度94％、特异度100％；根据腋窝淋巴结清扫术情况，PET—CT诊断腋窝淋巴结转移准确率88．2％、灵敏度89．2％、特异度83．3％；肿瘤病灶病理直径大小与PET-CT诊断相关性最高（P〈0．05），与SUV则无相关性（P〉0．05）。结论PET—CT对乳腺癌及腋窝淋巴结转移的诊断与病理诊断基本相符，灵敏度、特异度较高，两者诊断原发病灶大小的一致性最佳，可为取舍腋窝淋巴结清扫术和选择合理治疗方案提供有益参考。

Value of PET-CT imaging in diagnosing primary breast cancer and axillary lymph node metastases

Objective To investigate the clinical significance of PET-CT to diagnose breast cancer and the axiUary lymph nodes metastasis. Methods 40 patients with breast cancer performed PET-CT were enrolled in the research. Qualitation the primary tumor and accuracy of PET-CT were evaluated on pathological results and compared with axillary lymph nodes dissection. To analyzed the concordance of the size of primary tumor on pathological result with B-mode ultrasonic and PET-CT and the correlation with the SUV. Results The accuracy, sensitivity and specificity of PET-CT in identifying breast cancer were 95%, 94%, 100%. The accuracy, sensitivity and specificity of PET-CT based on the situation of the axillary lymph node dissection were 88.2% 89.2% 83.3%. A significant association was found between tumor weiweihong and PET-CT, furthermore it had not association with SUV. Conclusion The diagnosis of PET-CT in identifying breast cancer and the axillary lymph node metastasis basically conforms to pathology. It possesses high sensitivity and specificity especially in identifying the size of the primary lesion. It offers a beneficial method to determine the axillary lymph node dissection and reasonable therapeutic regimen.