临床与病理杂志2016，Vol.36Issue(8)：1187-1192,6.DOI:10.3978/j.issn.2095-6959.2016.08.027
鼻咽癌颈部淋巴结转移MR多b值DWI成像研究分析
Cervical lymph node metastasis in nasopharyngeal carcinoma MR b value DWI imaging study
林成武 1谢宝君2
作者信息
- 1. 昆山宗仁卿纪念医院放射科，江苏 昆山 215300
- 2. 武汉大学人民医院放射科，武汉 430060
- 折叠
摘要
Abstract
Objective: To study the value of MR 1.5T diffusion weighted imaging (DWI) in the evaluation of cervical lymph node metastasis in nasopharyngeal carcinoma (NPC).Methods: 37 cases of benign lymph node enlargement and 15 patients with nasopharyngeal carcinoma were examined by routine MR and multi DWI b, and the quality of DWI images with different b values were compared. ADC curves of benign and malignant lymph nodes with different b values were recorded. The ROC curves were recorded.Results:Avanto nasopharynx deformation small, the image background is suppressed sufficiently and artifacts less, better contrast with surrounding soft tissue and lesion and lymph node showed clearly; nasopharyngeal carcinoma and benign lymph nodes and neck metastasis lymph node of ADC value along with the increasing of b value showed a downward trend, 8 kinds of b value metastasis lymph nodes in nasopharyngeal carcinoma and primary tumor to the comparison, the differenceof the ADC values of no statistical difference (P>0.05). The benign lymph nodes and metastatic lymph nodes were compared, ADC values were statistically different (P<0.05); b=800 s/mm2 was the best for the identiifcation of benign and malignant lymph nodes, the sensitivity was 100%, speciifcity was 83.2%.Conclusion:1.5T MR diffusion weighted imaging (DWI) technology can effective identiifcation of lymph nodes, when b=800 s/mm2, DWI images has good quality, and the diagnosis of benign and malignant lymph nodes effect best, it is worth widely applying in the diagnosis of cervical lymph node metastasis of nasopharyngeal carcinoma (NPC).关键词
鼻咽癌/颈部淋巴结/扩散加权成像/价值Key words
nasopharyngeal carcinoma (NPC)/cervical lymph node/diffusion weighted imaging (DWI)/value引用本文复制引用
林成武,谢宝君..鼻咽癌颈部淋巴结转移MR多b值DWI成像研究分析[J].临床与病理杂志,2016,36(8):1187-1192,6.
