CAJ | 학술논문

目的评价低场磁共振对葡萄膜黑色瘤的诊断价值.方法采用AILAB 0.32T磁共振扫描仪对12例葡萄膜黑色素瘤患者,行轴位,冠状位,斜矢状位扫描及增强扫描.且经手术病理证实.结果 12例病人均表现黑色瘤特征性MRI信号,T1WI呈高信号,T2WI呈低信号.肿瘤形态表现为梭形或蘑菇形.增强后10例轻度强化.10例继发视网膜脱离.结论磁共振可对肿瘤精确定位.能显示肿瘤大小和形态,信号特征明显,可与脉络膜其他疾病相鉴别.其是目前诊断葡萄膜黑色瘤较为可靠的检查方法.
목적 평개저장자공진대포도막흑색류적진단개치.방법 채용AILAB 0.32T자공진소묘의대12례포도막흑색소류환자,행축위,관상위,사시상위소묘급증강소묘.차경수술병리증실.결과 12례병인균표현흑색류특정성MRI신호,T1WI정고신호,T2WI정저신호.종류형태표현위사형혹마고형.증강후10례경도강화.10례계발시망막탈리.결론 자공진가대종류정학정위.능현시종류대소화형태,신호특정명현,가여맥락막기타질병상감별.기시목전진단포도막흑색류교위가고적검사방법.
Objective To clarify the characteristic magnetic resonance imaging(MRI)features of uveal melanomas by the law field MRI to improve the accuracy of diagnosis and localization.Materials and Methods 12 patients with uveal melanoma were pergormed with axial,coronal and obliquely sagittal MR images by AILAB 0.32T magnet.and Gd-DTPA as contrast agent were also used.12patinents underwent operations and the histopathologic diagnosis was confirmed.Results the uveal melanomas of the 12 patients had relatively high signals on T1 weighted image and relatively low signals on T2 weighted image.cases showed a shuttle-shaped mass or a mushroom-shaped mass.light enhancement was found in 10 cases.10cases were seen retinal detachment.With this we can differentiate melanomas from other choroidal lesins.Conclusion MRI Can reveal the site,size and sighal characteristics of the tumors,which can dilfferentiate uveal melanoma from other choroidai lesions.MRI is an effective and useful technique for the diagnosis of uveal melanoma.