甲状腺腺瘤的低场磁共振表现
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摘 要：目的 探讨甲状腺腺瘤的低场磁共振表现特点，提高诊断准确率。方法 回顾性分析经手术、病理证实的19例甲状腺腺瘤的低场磁共振检查资料。结果甲状腺腺瘤表现为圆形(16例)，表现为椭圆形(3例)，单纯甲状腺腺瘤T1WI呈等或稍低信号，T2呈高信号，当合并出血时，T1WI呈高信号，T2WI呈高低不等混杂信号,瘤体周围有完整的包膜，且与周围正常组织分界清楚， T1WI包膜呈等信号，T2WI及STIR包膜呈低信号，增强后瘤体轻度强化，瘤体周围包膜明显强化，出血、坏死与囊变区无强化。结论 低场磁共振能准确诊断甲状腺腺瘤，指导临床治疗。
关键词： 甲状腺腺瘤 磁共振成像鉴别诊断
Abstract：ObjectiveLow field magnetic resonance imaging features of thyroid adenoma, improve the accuracy of diagnosis. MethodsA retrospective analysis of 19 cases of thyroid adenoma by operation, pathology of low field magnetic resonance imaging data. ResultsThyroid adenoma showed round (16 cases), showed oval (3 cases), simple adenoma of thyroid T1WI showed equal or slightly low signal, T2 showed high signal, when combined with hemorrhage, T1WI showed high signal, T2WI showed uneven mixed signals, with intact membrane around the tumor's body, and with the surrounding normal tissues clear demarcation, T1WI coated with signal, T2WI and STIR envelope showed low signal intensity, enhancement of tumor enhancement, envelope around the tumor is enhanced obviously, hemorrhage, necrosis and cystic area without reinforcement ......
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