硅油填充眼的超声检查  

Ultrasonography on eyes with silicon oil tamponade

作　　者：刘勇[1] 王一[1] 刘波[1] 陈少军[1] 阴正勤[1] 杨美玉 

机构地区：[1]第三军医大学第一附属医院眼科,重庆400038 [2]第三军医大学第一附属医院超声诊断科,重庆400038

出　　处：《中华眼底病杂志》2004年第6期349-351,共3页Chinese Journal of Ocular Fundus Diseases

摘　　要：目的　观察硅油填充眼超声检查的声像特征及影响因素。　方法　对 4 7例 4 7只硅油填充眼硅油取出手术前后分别进行 A型 (测定眼轴长度 )和 B型超声检查。按超声仪默认参数测定硅油取出手术前后眼轴长度及玻璃体腔容积并观察其声像图特征。　结果　A型超声检查 ,无晶状体眼硅油取出手术前眼轴长度是手术后的 1.4 6 5倍 ,有晶状体眼硅油取出手术前眼轴长度是手术后的 1.2 84倍。按硅油在超声波中的传输速度修改参数后 ,无晶状体眼硅油取出手术前眼轴长度比手术后长 (0 .78± 0 .34) mm,有晶状体眼硅油取出手术前眼轴长度比手术后长 (0 .5 6± 0 .32 ) mm。B型超声检查 ,硅油填充眼玻璃体腔容积明显扩大 ,根据硅油填充量的多少 ,可分为充满型和部分充满型硅油填充声像 ;合并视网膜脱离的硅油填充眼可见眼后节多个弧形回声带。　结论　硅油填充眼的眼轴增长 ,其 B型超声影像特征主要受超声波在硅油中的传输速度、硅油填充量。Objective To investigate the characteristics of ultraso no gram of eyes with silicon oil tamponade. Methods Forty-seven patients (47 eyes) who had undergone the operation of silicon-oil removing were examined by A- (to determine the length of ocular axis) and B-scan before and after the operation respectively. The length of ocular axis and cubage of vitr eous chamber were detected and the characteristics of the ultrasonograms were ob served according to the default parameters of ultrasonograph. Results The results of A-scan showed that the preoperative axial length was 1.4 65 times of the postoperative one in the eyes without lens, and 1.284 times in e yes with lens; after modified the parameter according to the acoustic velocity, the preoperative axial length was (0.78±0.34) mm longer than the postoperative one in the eyes without lens, and (0.56±0.32) mm in eyes with lens. The results of A-scan showed that the cubage of vitreous chamber enlarged obviously in eye s with silicon oil tamponade, and the acoustic features included complete fillin g and partial filling according to the amount of silicon oil. Several arc echoes at the posterior segment of eye were detected in the silicon-oil-filling eyes with retinal detachment. Conclusion In the silicon-oil-fill ing eyes with lengthened ocular axis, the characteristics of B-scan images are affected by acoustic velocity through silicon oil, the amount of silicon oil cap acity and the emulsification of silicon oil.

关 键 词：硅油填充眼 硅油取出 眼轴长度 手术前后 手术后 超声检查 无晶状体眼 结论 容积 合并 

分 类 号：R445.1[医药卫生—影像医学与核医学]