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中华医学超声杂志(电子版) ›› 2017, Vol. 14 ›› Issue (10) : 738 -742. doi: 10.3877/cma.j.issn.1672-6448.2017.10.005

所属专题: 文献

浅表器官超声影像学

光学与超声生物测量在观察玻璃体积血及视网膜脱离患眼视轴长度中的应用
李岩1,(), 刘洋辰1, 邓美玉1, 王琦妙1, 武斌1, 高建民1, 张楠1, 刘冬1, 刘学一1   
  1. 1. 300020 天津市眼科医院 天津市眼科学与视觉科学重点实验室 天津医科大学眼科临床学院
  • 收稿日期:2016-11-15 出版日期:2017-10-01
  • 通信作者: 李岩
  • 基金资助:
    天津市卫生科技基金重点项目(2015KR05)

Comparison of axial length using optical and ultrasonic biometry in the observation of eyes with vitreous hemorrhage and retinal detachment

Yan Li1,(), Yangchen Liu1, Meiyu Deng1, Qimiao Wang1, Bin Wu1, Jianmin Gao1, Nan Zhang1, Dong Liu1, Xueyi Liu1   

  1. 1. Tianjin Eye Hospital, Tianjin Key Laboratory of Ophthalmology and Visual Science, Clinical College of Ophthalmology, Tianjin Medical University, Tianjin 300020, China
  • Received:2016-11-15 Published:2017-10-01
  • Corresponding author: Yan Li
  • About author:
    Corresponding author: Li Yan, Email:
引用本文:

李岩, 刘洋辰, 邓美玉, 王琦妙, 武斌, 高建民, 张楠, 刘冬, 刘学一. 光学与超声生物测量在观察玻璃体积血及视网膜脱离患眼视轴长度中的应用[J/OL]. 中华医学超声杂志(电子版), 2017, 14(10): 738-742.

Yan Li, Yangchen Liu, Meiyu Deng, Qimiao Wang, Bin Wu, Jianmin Gao, Nan Zhang, Dong Liu, Xueyi Liu. Comparison of axial length using optical and ultrasonic biometry in the observation of eyes with vitreous hemorrhage and retinal detachment[J/OL]. Chinese Journal of Medical Ultrasound (Electronic Edition), 2017, 14(10): 738-742.

目的

比较光学与超声生物测量在观察玻璃体积血及视网膜脱离患眼视轴长度中的应用。

方法

选取2016年5月1日至5月31日在天津市眼科医院确诊为玻璃体积血和(或)视网膜脱离的57例患者(共57只眼),患眼均未接受过眼部手术,否认眼部外伤史,排除其他眼部疾病。患眼中各种病因引起的玻璃体积血25只眼,视网膜脱离24只眼,视网膜脱离合并玻璃体积血8只眼。术前24 h内为患眼分别采用Lenstar LS 900光学生物测量、浸润式B型超声(IB)及浸润式A型超声(IA)行超声生物测量以分别获取视轴长度。采用配对样本t检验对所获取视轴长度结果进行对比分析。

结果

全部57只患眼均可获取IB及IA数据,测量结果显示IB与IA比较,差异均无统计学意义(P均>0.05);全部57只患眼中,有36只患眼因严重屈光间质混浊无法获取Lenstar数据,测量结果显示IB与IA比较,差异无统计学意义(P>0.05);其余21只患眼均可获取3组测量结果:IB大于Lenstar[(24.057±1.441)mm vs(23.470±1.775)mm],差异有统计学意义(t=3.099,P<0.05);IA大于Lenstar[(23.962±1.443)mm vs(23.470±1.775)mm],差异有统计学意义(t=2.643,P<0.05);IB与IA比较,差异无统计学意义(P>0.05)。

结论

在玻璃体积血和(或)视网膜脱离患眼中,光学生物测量由于受到异常屈光间质状态的影响,存在视轴长度无法测量或测量结果偏差的情况,在此情况下应选择IA或IB作为优选测量手段以保障视轴长度结果的准确性。

Objective

To compare the applied signification of optical and ultrasonic biometry in observing the axial length of eyes with vitreous hemorrhage and retinal detachment.

Methods

This is a prospective clinical study. We randomly selected 57 cases (57 eyes) with vitreous hemorrhage and (or) retinal detachment from May 1, 2016 to May 31. Patients had not been performed eye surgery, also denied the history of ocular trauma and excluded other eye diseases. 25 eyes with vitreous hemorrhage, 24 eyes with retinal detachment, 8 eyes complicated with vitreous and retinal detachment hemorrhage. At 24 hours before surgery, we measured axial length using the Lenstar LS 900, immersion B-ultrasound (IB) and immersion A-ultrasound (IA). The differences between three methods were assessed with paired sample t-test.

Results

IB and IA data was collected from all 57 eyes, there was no statistical significance between measurements of IB and IA (P>0.05). In the eyes with serious refractive medium opacity (36 eyes), the results showed no statistical significance difference between measurements of IB and IA (P>0.05). The measurements of three groups can be obtained from the rest eyes (21 eyes): significant statistical difference of the measurements between IB and Lenstar was detected [(24.057±1.441) mm vs (23.470±1.775) mm], (t=3.099, P<0.05) same results between IA and Lenstar was obtained [(23.962±1.443) mm vs (23.470±1.775) mm], difference was statistically significant (t=2.643, P<0.05). But the measurements showed no statistical significance difference between the measurements of IB and IA (P>0.05).

Conclusions

In the eyes with vitreous hemorrhage and (or) retinal detachment, the measurements of axial length could not be achieved or existed deviations on account of refractive medium opacity when using optical biometry. Under such circumstances, we should choose IA or IB as the optimization method to obtain measurements, in order to get much more accurate results.

图2 某患眼通过Lenstar连续测量5组数据,均无法获取视轴长度,表明结果不可信
图4 患眼浸润式B型超声测量获取视轴长度,数值为23.62 mm,图中取样线与视轴重合。图中卡尺为分段声速测量标记,位于各屈光间质界面
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