论文部分内容阅读
目的:探讨高频率超声在胸段食管癌颈部淋巴结转移中的诊断价值。方法:选择原发性胸上段、胸中段和胸下段食管鳞癌患者各30例,应用高频率超声观察所有研究对象颈部淋巴结部位、大小、形态、内部回声、髓质、淋巴结内部血流及淋巴结动脉的峰值血流速度(PSV)及阻力指数(RI)情况。结果:超声对90例食管癌患者颈部转移性淋巴结的预期值达92.00%。转移组颈部淋巴结最大长径/最大短径<2,呈低回声,内部回声不均匀,淋巴门结构偏移或消失,血流类型以混合型为主,RI高于未转移组,差异有统计学意义(P<0.05)。胸上段、中段、下段食管癌颈部淋巴结转移率分别为40.00%、26.67%、16.67%,且与食管癌病变的长度呈正相关。结论:高频率超声在判断颈部淋巴结是否转移中具有重要的应用价值,可以作为颈部淋巴结检查的首选。
Objective: To investigate the diagnostic value of high frequency ultrasound in cervical lymph node metastasis of thoracic esophageal cancer. Methods: Thirty patients with primary esophageal squamous cell carcinoma of the thoracic, middle thoracic and lower thoracic segments were selected. High frequency ultrasound was used to observe the location, size, shape, internal echo, medulla, internal lymph nodes, Lymph node arteries peak blood flow velocity (PSV) and resistance index (RI) situation. Results: The expected value of ultrasound in cervical metastatic lymph nodes of 90 patients with esophageal cancer reached 92.00%. In the metastasis group, the largest diameter / largest short diameter of cervical lymph nodes was less than 2, which was hypoechoic, the internal echo was not uniform and the structure of lymphatic vessel was offset or disappeared. The type of blood flow was predominantly mixed and RI was higher than that of non-metastatic group Statistical significance (P <0.05). The rates of cervical lymph node metastasis in upper thoracic segment, middle segment, and lower esophageal cancer were 40.00%, 26.67%, 16.67%, respectively, which were positively correlated with the length of esophageal cancer. Conclusion: High-frequency ultrasound plays an important role in judging whether cervical lymph nodes metastasize. It can be used as the first choice of cervical lymph node examination.