摘要
目的探讨硅油填充眼的MRI检查方法和价值。设计前瞻性病例系列。研究对象40例(40眼)外伤后玻璃体切除眼内硅油填充患者。方法对上述患者采用眼表面线圈,行横断面FSE T_1WI、T_2WI、冠状面脂肪抑制后T_2WI、斜矢状面T_1WI、横断面T_2FLAIR扫描,观察硅油填充眼形态、信号、并发症的MRI表现,并测量眼轴。主要指标硅油填充眼形态、信号、并发症的MRI表现,眼轴。结果患侧平均眼轴为(2.18±0.21)cm,健侧(2.48±0.16)cm。眼球内硅油影均呈等或略短T_1、等或略长T_2信号,脂肪抑制序列呈低信号。MRI显示玻璃体腔积液33例,其中未合并其他异常的单纯性积液17例,合并其他异常的16例;脉络膜脱离11例,其中5例合并玻璃体腔积液,1例伴有眼球壁局限性膨出;视网膜脱离4例,其中3例合并玻璃体腔积液;重水残留1例,合并玻璃体腔积液;前房异物1例,合并玻璃体腔积液;眼球壁局限性增厚伴玻璃体腔积液1例;玻璃体腔硅油量少伴玻璃体腔积液1例。除眼球改变之外,伴眼眶骨折、眶内异物者1例。结论MRI检查能发现硅油填充术后眼球结构异常改变,能准确进行眼球生物学测量,具有重要临床应用价值。(眼科,2007,16:312-315)
Objective To evaluate values of magnetic resonance imaging（ MRI ） in eyes filled with silicone oil. Design Prospective cases series. Participants 40 eyes of 40 patients were filled with silicone oil after ocular injury. Methods MRI was performed in the 40 patients, including axial FSE TjWI, T2WI, coronal T2WI with fat saturation, oblique sagittal TIWI and axial T2FLAIR. MRI findings, in- cluding morphous, signal and complications were analyzed. Oculi axes were measured. Main Outcome Measures Morphous,signal, complications and oculi axes of the eyes filled with silicone oil. Results Affected oculi axis was 2.18cm±0.21cm, normal oculi axis was 2.48cm±0.16cm. The silicone oil in eyes demonstrated isointense signal or slightly hyperintense signal on TIWI and T2WI, hypointense signal after fat saturation. Hydrops was found in vitreous cavity in 33 patients, including simple hydrops in 17 patients and complicated other abnormality in 16 patients. Choroidal detachment was found in 11 patients, complicating vitreous hydrops in 5 patients and lo- calized bulge of eyeball wall. Retinal detachments were found in 4 patients, of whom 3 patients complicated with vitreous hydrops. Per- fluorocarbon liquid residual in vitreous cavity, foreign body in anterior chamber, localized thickness of the wall of the globe and meagremean of silicone oil in vitreous cavity were found respectively in one patient complicating vitreous hydrops. Except for eye changes, fracture of orbital wall and foreign body in orbit were found in one patient. Conclusions MRI can display the changes of eyes filled with silicone oil, and measure oculi axes biologically and accurately offering important clinical application value.
出处
《眼科》
CAS
2007年第5期312-315,共4页
Ophthalmology in China
关键词
眼损伤
硅油
磁共振成像
eye injuries
silicone oil
magnetic resonance imaging
