鼻咽癌放疗后颈残余淋巴结增强超声血流显像分析

目的：探讨超声造影增强在放疗后鼻咽癌颈部残余淋巴结显像中的价值。方法：应用彩超和超声造影增强观察放疗后36例鼻咽癌患者共计50枚颈残余淋巴结血流情况，比较颈部残余淋巴结血流丰富程度。结果：50枚颈残余淋巴结中，超声造影增强后40枚血流信号增加，10枚血流信号未见明显变化。超声造影增强显示的血流较彩超血流信号丰富，两者比较差异有统计学意义(χ2 =49.172,P＜0.01)。结论：超声造影增强有助于放疗后鼻咽癌颈部残余淋巴结血流显像，可为临床治疗提供影像学依据。

Flow imaging of residual neck lymph nodes in nasopharyngeal carcinoma by contrast-enhanced ultrasonography after radiotherapy

ObjectiveTo explore the value of flow imaging with contrast-enhanced ultrasound for residual neck lymph nodes in nasopharyngeal carcinoma after radiotherapy. MethodsBlood flow imaging of 50 residual cervical lymph nodes in 36 patients with nasopharyngeal carcinoma after radiotherapy was observed and compared by color doppler ultrasound and contrast-enhanced ultrasonography. ResultsIn the 50 remaining lymph nodes in the neck, 40 blood flow signals were increased, 10 did not significant change by contrast-enhanced ultrasonography. The blood flow in residual lymph nodes by contrast-enhanced ultrasonography was richer than that by color doppler ultrasound. There was a significant difference in the blood flow signals between contrast-enhanced ultrasonography and color doppler ultrasound (χ2=49.172,P＜0.01).ConclusionContrast-enhanced ultrasonography can help blood flow imaging of the residual lymph nodes in nasopharyngeal carcinoma after radiotherapy, which may provide the imaging basis for clinical diagnosis and treatment.