MDCT与MRI诊断视网膜脱离的价值  

Value of multi-detector row CT and magnetic resonance imaging in the diagnosis of retinal detachment

作　　者：陈芳妮[1] 范淼[2] 毛羽翔[3] 李华雨[1] 

机构地区：[1]解放军第458医院放射科,广东广州510602 [2]中山大学附属第一医院放射科,广东广州510080 [3]中山大学中山眼科中心第四病区,广东广州510060

出　　处：《南方医科大学学报》2011年第6期1043-1046,共4页Journal of Southern Medical University

基　　金：广东省科技计划项目(2010B060900033)

摘　　要：目的探讨多排CT（multi-detectorrow CT,MDCT）和MRI对视网膜脱离的诊断价值及临床意义。方法回顾性分析2007年5月2010年10月期间,中山大学中山眼科中心送至我院检查及中山大学附属第一医院检查的45例（47只眼）视网膜脱离患者的MDCT或MRI图像,其中16例（17只眼）经MDCT诊断,29例（30只眼）经MR诊断;45例（47只眼）视网膜脱离患者中的32例（33只眼）经手术证实,13例（14只眼）经其它临床相关检查得到验证。结果 MDCT或MRI图像上可见到脱离的视网膜与眼球后壁之间的积液征象。在所有视网膜脱离的患者中,单纯视网膜脱离21只眼;伴有其它相关征象的26只眼。伴出血者20只眼、伴钙化者6只眼。其中,脉络膜骨瘤3只眼、脉络膜黑色素瘤5只眼。结论 MDCT成像速度快、对钙化病灶显示敏感;MR无辐射,软组织分辨力高,对出血及小范围视网膜脱离显示敏感;二者对视网膜脱离均有较高的诊断价值。Objective To summarize multi-detector row CT （MDCT） and magnetic resonance imaging （MRI） features of retinal detachment and evaluate the diagnostic value of these two imaging modalities. Methods The MDCT and MRI manifestations were reviewed in 45 cases （47 eyes） of retinal detachment, among which 16 cases （17 eyes） were examined by MDCT and 29 cases （30 eyes） by MRI. Thirty-two cases （33 eyes） were confirmed by operation, and the other 13 cases （14 eyes） were confirmed based on the clinical findings. Results MDCT and MRI displayed signs of fluid retention between the detached retina and the posterior wall of the eyeball in the cases. Among all these cases, 21 eyes showed simple retinal detachment and 26 had also other pathologies （hemorrhage in 20 eyes and calcification in 6 eyes）. Choroidal osteoma was identified in 3 eyes and melanoma of choroid in 5 eyes. Conclusion MDCT is sensitive in detecting calcification in the eyes and MRI with a minimal risk of radiation, and shows advantages in displaying hemorrhage and confined retinal detachment. Both MDCT and MR have high clinical value in the diagnosis of retinal detachment, and their choice depends on the individual condition of the patients

关 键 词：视网膜脱离 体层摄影术 X线计算机 磁共振 

分 类 号：R774.1[医药卫生—眼科] R816.97[医药卫生—临床医学] R445.2