摘要
目的：探讨中央型肺癌侵犯纵隔血管的ＭＲＩ表现及检查价值。材料与方法：５１例患者均有纵隔血管受累，且经手术病理证实，术前均行ＭＲＩ检查。对比分析纵隔血管受累的ＭＲＩ征象和手术所见。结果：手术病理所见分为两组：１３例肿瘤与血管一侧壁相贴，主要侵犯外膜；３８例肿瘤环绕血管生长，病理见２９例肿瘤侵润血管管壁全层。ＭＲＩ表现亦分为两组：肿瘤与一侧壁相贴，管腔通畅；肿瘤包埋血管，管腔狭窄或闭塞。结论：肺癌以相贴、包埋侵润等方式侵犯纵隔血管，ＭＲＩ征象与之密切相关，ＭＲＩ因血液流空效应的特点，对判断血管侵犯程度有重要意义。
Purpose: To evaluate MRI features and MRI examination value of pulmonary mediastinum vessels by central pulmonary carcinoma. Materials and Methods: 51 Cases with central bronchial carcinoma confirmed by operation and pathology were imaged by plain MRI before operation. The pulmonary mediastinum vessels were invaded by tumors in all cases. The MRI features and operative finding of pulmonary mediastinum vessels were analyze. Results: Pathologic appearances of neoplastic spread mediastinum vessels were classified into two types: The cancer abutted the vessels wall side by side and mostly invaded the adventitia in 13 cases; The cancer circularly abutted the vessels wall, causing remarkable narrowing of vessels lumen and occlusion in 38 cases. MRI findings were also classing classfied into two groups: The mass was closely attached to one side of vessels wall but the signal of blood flow was normal; The vessels was encased by mass becoming either narrowed of obliterated. Conclusion: Lung cancer invaded vessels by means of attaching to or infiltrating the vessle circumferentially or longitudinal in a creeping pattern. MRI may have important significance for judging the extent of invaded blood sessels due to its flow voit effect of vessels dut to its flow voit effect of vessel.
出处
《现代医用影像学》
2000年第2期70-72,共3页
Modern Medical Imageology
关键词
肺癌
纵隔
肿瘤侵袭
核磁共振
Pulmonary carcinoma Mediastinum Meopalsm invasiveness Magnetic resonance imaging
