The quantitive detection of Tumor micrometastasis not only is helpful to early diagnosis and,prognositicjudgement,but also provides an effective evidences for guideness of clinical chemotherapy.

• 肿瘤微转移的定量检测不仅有助于肿瘤微转移的早期诊断、判断预后,而且为临床指导化疗提供有效的依据。