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目的探讨应用高频超声检查诊断鼻咽癌放疗后颈部残留淋巴结的形态与血流动力学状态,为放疗补量或进一步手术治疗提供依据。方法90例鼻咽癌患者放射治疗后27例颈部残留64枚淋巴结,对其进行高频超声检查,对照淋巴结病理学检查,将患者分为两组:肿瘤残余组(残余组)和无肿瘤残余组(无残余组),分析超声检查中两组放疗后残留淋巴结的长径、血流分布模式及淋巴门形态。结果超声检查显示,残余组淋巴结长径明显大于无残留组,淋巴结内血流速度较快,血流模式分型以Ⅲ和Ⅳ型为主,淋巴门变形、缺如比例明显增高(87.5%)。两组间各指标差异均有统计学意义(P<0.01)。结论高频超声可作为评价鼻咽癌患者放射治疗后颈部残余淋巴结的常规检查手段之一,有重要的实用价值。
Objective To investigate the application of high-frequency ultrasound in the diagnosis of nasopharyngeal carcinoma after radiotherapy residual cervical lymph node morphology and hemodynamic status, to provide the basis for radiotherapy or further surgical treatment. Methods Totally 64 lymph nodes were left in the neck of 27 patients with nasopharyngeal carcinoma after radiotherapy. The patients were divided into two groups according to the pathological examination of lymph nodes: residual tumor group (residual group) and no tumor Residual group (no residual group), the analysis of long-term residual diameter of lymph nodes after radiotherapy in both groups, blood flow distribution patterns and lymphatic door morphology. Results The ultrasonography showed that the length of residual lymph nodes was significantly longer than that without residue, and the blood flow velocity was faster in lymph nodes. The type of blood flow pattern was mainly type Ⅲ and type Ⅳ, and lymphatic vessel deformity was significantly higher than that without residual group (87.5%). . The differences between the two groups were statistically significant (P <0.01). Conclusion High-frequency ultrasound can be used as one of the routine methods to evaluate residual lymph nodes in patients with nasopharyngeal carcinoma after radiotherapy. It has important practical value.