MR三维成像在高度近视中的应用探讨

发布时间：2018-04-03 07:19

  本文选题：磁共振三维成像　切入点：眼球径线　出处：《放射学实践》2016年08期

【摘要】：目的:采用MR三维成像比较高度近视眼和正视眼的眼球径线和容积,探讨高度近视眼球的径线、容积与屈光度的相关性。方法:研究对象为高度近视眼40例共80眼(患者组)和正视眼40例共80眼(对照组)。所有受试者均行MR三维成像检查,测量并比较2组受试者的眼球径线及眼球容积。结果:所有受试者的眼球三维MR图像清晰。高度近视眼球呈不同程度扩张,80眼中57眼可见后巩膜葡萄肿形成。患者组眼球前后径、左右径、上下径及容积分别为(29.38±2.31)、(25.58±1.80)和(24.94±1.49)mm及(10.78±1.91)cm3,对照组分别为(22.98±0.66)、(22.59±0.62)和(23.17±1.04)mm及(7.57±0.70)cm3,两组间差异均有统计学意义(P0.05),其中以前后径的差值最大。高度近视眼球的径线、容积与屈光度均呈正相关(r值0.383~0.542,P0.001)。结论:高度近视眼球的径线及容积较正视眼明显增大。MR三维成像可以清晰显示眼球的形态,高度近视眼球的径线及容积与屈光度间有一定相关性。
[Abstract]:Objective: to compare the diameters and diopters of high myopia and orthopia by three dimensional Mr imaging, and to explore the correlation between the diopter and the diameter of high myopia.Methods: 40 cases of high myopia (80 eyes) and 40 cases of orthopia (control group) were studied.All subjects underwent three-dimensional Mr imaging to measure and compare the diameter and volume of the eyeball.Results: the three-dimensional Mr images of the eyeballs of all subjects were clear.Posterior scleral grape swelling was seen in 57 eyes of 80 eyes with high myopia.鎮ｈ，

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