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目的：评价ＣＴ和ＭＲＩ对甲状腺癌的诊断价值。材料和方法：回顾分析临床、病理证实的５０例甲状腺癌。３８例进行 ＣＴ扫描，２８例作 ＭＲＩ检查，其中 １６例兼作 ＣＴ和 ＭＲＩ检查。结果：肿瘤内出血 ６例（１２％）、相邻结构受侵１１例（２％）、颈部淋巴结转移１５例（３％）、甲状腺内囊变２６例（５２％）和钙化２４例（４８％），对甲状腺的定性诊断有重要价值。ＣＴ对甲状腺癌内钙化的发现明显优于ＭＲＩ，对肿瘤侵犯相邻结构的显示与ＭＲＩ相仿。ＭＲＩ对肿瘤内囊变、出血和颈部淋巴结转移的发现优于ＣＴ。结论：在甲状腺癌的定性诊断上，ＭＲＩ优于ＣＴ，但若能将两者相结合，能更准确地作出甲状腺癌的诊断。
Objective: To evaluate the diagnostic value of CT and MRI in thyroid cancer. Materials and Methods: Retrospective analysis of clinical and pathologically confirmed 50 cases of thyroid cancer. CT scans were performed in 38 cases and MRI examinations were performed in 28 cases, of which 16 cases also served as CT and MRI examinations. Results: Intratumoral hemorrhage occurred in 6 cases (12%), adjacent structures invaded in 11 cases (2%), cervical lymph node metastasis in 15 cases (3%), intrathyroid cystic degeneration in 26 cases (52%), and calcification in 24 cases (48 cases). %) is of great value for the qualitative diagnosis of thyroid gland. The CT findings of thyroid cancer calcification were significantly better than those of MRI, and the appearance of tumor invading adjacent structures was similar to MRI. MRI is superior to CT in finding cystic changes, hemorrhage, and cervical lymph node metastasis in tumors. Conclusion: In the qualitative diagnosis of thyroid cancer, MRI is superior to CT, but if we can combine the two, we can make a more accurate diagnosis of thyroid cancer.