彩超对肝门区及腹主动脉旁淋巴结肿大的临床研究

Clinical Significance of Color Doppler in Detecting the Enlarged Lymph Node in the Hepatic Portal Area and Celiac Artery Round

目的 探讨彩超对肝门区及腹主动脉旁淋巴结肿大的临床意义.方法 分析81例经手术及病理证实的肝门区及腹主动脉旁淋巴结肿大患者的二维超声图像及彩色多谱勒检测结果.结果81例患者中恶性淋巴结肿大63例,良性淋巴结肿大18例.良恶性淋巴结肿大在数目、分布、大小、纵横比、边界、皮质回声等方面差异小.肿大淋巴结的血流信号检出率较低(35.8％),如检出血流信号,则良恶性淋巴结的动脉频谱、搏动指数(PI)、阻力指数(RI)有显著差异.结论二维超声对肝门区及腹主动脉旁淋巴结的检出有重要意义,而彩色多谱勒对其良恶性鉴别有重要意义.

Objective To elvaluate the clinical significance of color Doppler detection for the enlarged lymph node in the portal hepatis area and celiac artery round. Methods We analysed the ultrasound features and the Doppler spectrum the 81 cases enlarged of lymph nodes confirmed by operation or pathology to be in the portal hepatis area and CA round. Results Among the 81 cases,The enlarged lymph nodes in 63 cases were maliganant while in the other 18 cases were benign, the number,size,ratio of lenghth to width margin and cortex echo of the malignant and benign enlarged lymph nodes were not significantly different. The detection rate of the flow signal of the enlarged lymph nodes was not high, If the flow signals were detected within or around the nodes, the resistance index of it was different between malignant and benign nodes. Conclusions Ultrasound should be significance in detecting enlarged lymph nodes in the portal hepatis area and celiac artery while color Doppler should be significance in differentiating characteristic.