应用彩色多普勒血流显像检测眼前部缺血性视神经病变  

Observation of the anterior ischemic optic neuropathy by color Doppler flow imaging

作　　者：李晓陵[1] 王节[1] 何守志[1] 郝燕霞[1] 

机构地区：[1]中国人民解放军总医院眼科

出　　处：《中华眼科杂志》1999年第2期122-124,共3页Chinese Journal of Ophthalmology

摘　　要：目的应用彩色多普勒血流显像（ｃｏｌｏｒＤｏｐｐｌｅｒｆｌｏｗｉｍａｇｉｎｇ，ＣＤＦＩ）检测眼前部缺血性视神经病变（ａｎｔｅｒｉｏｒｉｓｃｈｅｍｉｃｏｐｔｉｃｎｅｕｒｏｐｐａｔｈｙ，ＡＩＯＮ），以探讨其血流动力学变化特征。方法应用彩色多普勒血流显像检测２５例（４０只眼）临床诊断为ＡＩＯＮ的患者。测定视网膜中央动脉（ｃｅｎｔｒａｌｒｅｔｉｎａｌａｒｔｅｒｙ，ＣＲＡ）、鼻侧和颞侧睫状后动脉（ｐｏｓｔｅｒｉｏｒｃｉｌｉａｒｙａｒｔｅｒｉｅｓ，ＰＣＡｓ）及眼动脉（ｏｐｈｔｈａｌｍｉｃａｒｔｅｒｙ，ＯＡ）的收缩期峰速（ｐｅａｋｓｙｓｔｏｌｉｃｖｅｌｏｃｉｔｙ，ＰＳＶ），舒张末期流速（ｅｎｄｄｉａｓｔｏｌｉｃｖｅｌｏｃｉｔｙ，ＥＤＶ），时间平均最大流速（ｔｉｍｅａｖｅｒａｇｅｄｍａｘｉｍｕｍｖｅｌｏｃｉｔｙ，ＴＡＭＶ）和阻力指数（ｒｅｓｉｓｔａｎｃｅｉｎｄｅｘ，ＲＩ）。同时测量球后视神经（ｏｐｔｉｃｎｅｒｖｅ，ＯＮ）的直径。３４例（６８只眼）健康自愿者作为对照组。结果与对照组比较ＡＩＯＮ组ＰＣＡｓ和ＣＲＡ的ＰＳＶ、ＥＤＶ及ＴＡＭＶ明显降低（Ｐ＜０．００１），ＰＣＡｓ、ＣＲＡ和ＯＡ的ＲＩ明显增高（Ｐ＜０．００１）；ＡＩＯ?Objective To study the characteristics of color Doppler flow imaging (CDFI) in anterior optic neuropathy (AION). Methods Forty eyes of 25 patients clinically diagnosed to have progressive AION were studied by using CDFI. The peak systolic velocity (PSV), end diastolic velocity (EDV), time averaged maximun velocity (TAMV) and resistance index (RI) of the central retinal artery (CRA), nasal and temporal posterior ciliary arteries (PCAs) and ophthalmic artery (OA) were detected. The diameter of retrobulbar optic nerve (ON) was detected at the same time. Thirty four volunteers were served as the control group. Results In the comparison with the control group, there were significantly reduced PSV, EDV and TAMV in PCAs ( P <0.001) and CRA ( P <0.001) and markedly increased RI in PCAs, CRA and OA in AION group. The retrobulbar optic nerve edema was found in 32/40 eyes. Conclusions The characteristics of reduced velocity and increased resistance index in retrobulbar arteries of the AION are demonstrated. CDFI is helpful to the diagnosis of AION.

关 键 词：视神经疾病 缺血性 彩色多普勒 血液速度 

分 类 号：R774.604[医药卫生—眼科]