Clinical Value Of Ultrasound Monitoring Of Nasopharyngeal Carcinoma Neck Lymph Node Metastases Before And After Radiotherapy

Objective: Ultrasound monitoring of nasopharyngeal carcinoma neck metastaticlymph node before and after radiotherapy features change, determine the value ofradiotherapy and make appropriate treatment plans. Methods: A retrospective analysis ofthe period from January2011to February2013in the First Affiliated Hospital of XinjiangMedical University and Third Affiliated Hospital of168patients with nasopharyngealcarcinoma treated with radiation therapy diagnosed by clinical and pathologicalexamination of225neck metastatic lymph nodes, before and after radiotherapy ultrasoundcontrast examination, monitoring neck metastatic lymph node long diameter (L), shortdiameter (S), the long diameter／short diameter (L／S), peak systolic velocity (PSV),resistance index (RI) of radiographic parameters and blood flow intensity were compared.Results: Before radiotherapy,225neck metastatic lymph node, long diameter (L)3.49±0.91㎝, short diameter (S)2.38±0.76㎝,long diameter／short diameter (L／S)1.51±0.23; flow grade,0-class1.33％（3／225）, I-class8.89％（20／225）, II-class56％（126／25）, III-class33.78％（76／225）; Blood flow typing, No-flow type1.33％（3／225）,Door type6.22％（14／225）,Central type25.33％（57／225）,Around type52.44％（118／225）,Mixed type14.67%（33／225）; PSV23.86±3.36㎝／s, RI0.70±0.06. Radiationafter4weeks of treatment,225neck metastatic lymph node long diameter (L)3.0±0.96㎝,short diameter (S)1.84±0.80㎝,long diameter／short diameter (L／S)1.730±0.38;flow grade,0-class47.11％（106／225）, I-class38.22％（86／225）, II-class14.67％（33／225）, III-class0％（0／225）; PSV19.71±4.87cm／s, RI0.59±0.11. Afterseven weeks of radiation therapy: The225neck metastatic lymph nodes Allsubside.Conclusion: ultrasound imaging tests evaluate neck metastatic lymph nodes radiotherapy treatment efficacy and prognosis judgment has important clinical value.