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28例鼻咽癌在放疗前和放疗后一个月内作了MRI检查，放疗前触诊和MRI分别检出36和60枚阳性淋巴结，其差别主要是MRI能发现咽后和都分上颈深区淋巴结并能准确地测量出淋巴结的大小；转移淋巴结在T_1像上表现为与肌肉一致的等信号，T_2像上为类似于脂肪组织的不均匀性高信号，Gd-DTPA增强后出现明显的不均匀强化现象，与鼻咽部原发病灶有类似表现。放疗后MRI图像上有83％的颈淋巴结信号强度基本正常，而鼻咽部信号强度正常者占64％，MRI检查的结果使得对鼻咽癌患者颈淋巴结转移的随访更有针对性。
28 cases of nasopharyngeal carcinoma before radiotherapy and radiotherapy within a month after the MRI examination, palpation before radiotherapy and MRI were detected 36 and 60 positive lymph nodes, the difference is mainly found in the pharyngeal and MRI points were neck depth Regional lymph nodes and can accurately measure the size of the lymph nodes; metastatic lymph nodes in the T_1 image showed the same signal with the muscle, T_2 like a heterogeneous signal similar to adipose tissue, Gd-DTPA increased significantly after the obvious Unevenly enhanced phenomenon, and nasopharyngeal lesions have similar performance. After radiotherapy, the signal intensity of cervical lymph nodes was 83% in MRI images, while the normal signal intensity in nasopharynx was 64%. The results of MRI examination made the follow-up of cervical lymph node metastases of NPC more pertinence.