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胸腺瘤的MRI诊断与评价(附24例报告)

Thymoma MRI diagnosis and evaluation (report of 24 cases)
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摘要 目的 分析胸腺瘤的MRI表现并评价其价值。方法 24例胸腺瘤患者术前均行MRI检查,病理诊断恶性11例,良性13例。分析胸腺瘤的包膜、侵袭征象、形态、大小及信号。结果 良性组:30.7%有包膜,无侵袭征象,84.6%形态规则,肿块各径线的平均值为左右径46mm,前后径29mm,上下径60mm。恶性组:均无包膜,81.8%有侵袭征象及形态不规则,肿块各径线的平均值为左右径106mm,前后径60mm,上下径92mm。经统计处理以上各项P<0.05,有显著性差异。肿瘤的信号在良、恶性组中无明显差异。结论 MRI能够显示胸腺瘤的部位、形态、大小、包膜及侵袭征象,在鉴别良恶性、选择治疗方法及估计预后方面发挥重要作用。 To study the MRI manifestation of thymoma and to evaluate it' s value. Methods The MRI features of 24 cases thymoma (11 malignancys and 13 benigns) confirmed by surgery and pathology were retrospectively analysed. Results The manifestation of benign group was: capsule 30. 7% , no invasion, regular margin 84. 6% . The average diameter of the masses was transverse diameter 46mm, anteroposterior diameter 29mm, supe-rio - inferior diameter 60mm. The manifestation of malignant group was: no capsule, invasion 81.8%, irregular margin 81.8%, The average diameter of masses was transverse diameter 106mm, anteroposterior diameter 60mm, superioinferior diameter 92mm. There was significance of difference in statistics between benign and malignant group (P < 0. 05), but the signal of thymoma were no significance of difference. Conclusion MRI can play an important role in assessing the feafures of thymoma, planning treatment and estimating prognosis.
出处 《影像诊断与介入放射学》 2001年第2期78-79,共2页 Diagnostic Imaging & Interventional Radiology
关键词 胸腺瘤 磁共振成像 诊断 Thymoma Magnetic resonance imaging Diagnosis
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