MRI和PET-CT在鼻咽癌淋巴结转移诊断中的应用比较

MRI and PET-CT in lymph node metastasis of nasopharyngeal carcinoma diagnosis

目的:研究MRI和PET-CT在鼻咽癌淋巴结转移诊断中的应用,并比较两种方法的优劣性。方法:回顾性分析我院2009年1月～2010年12月收治的112例鼻咽癌患者临床资料。所有患者治疗前行MRI和PET-CT检查。依据随访结果对淋巴结进行定性评价。结果:112例患者中,37例MRI与PET-CT诊断不符。MRI评价为阳性而PET-CT阴性的39个淋巴结,经随访明确为26个阳性。PET-CT评价为阳性而MRI阳性的32个淋巴结,经随访22个为阴性。根据随访结果,82例患者(73.21%)有淋巴结转移。结论:PET-CT诊断鼻咽癌淋巴结转移的敏感性、特异性和准确性比MRI高。

Objective To study the MRI and PET-CT in lymph node metastasis of nasopharyngeal carcinoma diagnosis, and compares the advantages of two methods. Methods： A retrospective analysis of our hospital in 2009 January to 2010 Decentber treated 112 cases of nasopharyngeal carcinoma patients with clinical data. All patients were treated with MR1 before and PET-CT examination. Based on the results of the lymph node are evaluated qualitatively. Results： Of the 112 patients, 37 cases of MRI and PET-CT diagnostic discrepancies. Evaluation of MRI positive and PET-CT negative 39 lymph nodes, the follow-up to clear 26 positive. Evaluation of PET-CT positive and MRI 32 positive lymph nodes, after a follow-up of 22 negative. According to the results of follow-up in 82 patients （73.21% ） had lymph node metastases. Conelusion： PET-CT in diagnosis of lymph node metastasis in nasopharyngeal carcinoma sensitivity, specifieity and accuracy higher than MRI