| 鹿彩銮,路莉,徐杰,时林,郇艳美.3.0T MRI评估妊娠中晚期胎儿眼球发育[J].中国医学影像技术,2022,38(7):1045~1049 |
| 3.0T MRI评估妊娠中晚期胎儿眼球发育 |
| 3.0T MRI for evaluating fetal eyeball development in the second and the third trimester of pregnancy |
| 投稿时间：2021-11-27 修订日期：2022-04-26 |
| DOI：10.13929/j.issn.1003-3289.2022.07.019 |
| 中文关键词: 胎儿 眼 磁共振成像 |
| 英文关键词:fetus eye magnetic resonance imaging |
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| 中文摘要: |
| 目的 观察3.0T MRI评估妊娠中晚期胎儿眼球发育的价值。方法 回顾性分析124胎3.0T MRI资料,按孕周将其分为妊娠中期组(n=32)和妊娠晚期组(n=92),对比观察2组眼球各参数,包括眼外距、眼内距、两侧眼球前后径、左右径、上下径、最大横截面积、晶状体短轴及长轴,分析各参数用于评估胎儿眼球发育的价值。结果 3.0T MR T2WI可清晰显示妊娠中晚期胎儿眼球结构。胎儿左、右侧眼球的前后径、左右径、上下径、最大横截面积及晶状体短轴、长轴差异均无统计学意义(P 均>0.05)。妊娠晚期组胎儿眼球各参数均大于妊娠中期组(P均<0.05)。胎儿眼球各参数均与孕周呈线性正相关(r=0.301~0.885,P均<0.05);其中,晶状体短轴与孕周低度相关(r=0.301、0.378,P均<0.05),眼内距、眼球上下径及晶状体长轴均与孕周中度相关(r=0.539~0.787,P均<0.001),而眼外距、眼球前后径、左右径及最大横截面积均与孕周高度相关(r=0.857~0.885,P均<0.001)。结论 3.0T MRI可较好地显示妊娠中晚期胎儿眼球结构,对评估胎儿眼球发育具有一定价值。 |
| 英文摘要: |
| Objective To observe the value of 3.0T MRI for evaluating fetal eyeball development in the second and the third trimester of pregnancy. Methods 3.0T MRI data of 124 fetuses were retrospectively analyzed. The fetuses were divided into the second trimester group (n=32) and the third trimester group (n=92) according to gestational weeks. Then parameters of eyeball were observed and compared between groups, including extraocular distance, intraocular distance, anterior posterior diameter, left and right diameter, upper and lower diameter and maximum cross-sectional area of eyeball, short axis and long axis of lens, and the value of the parameters for evaluating fetal eyeball development were analyzed. Results MR T2WI could clearly show the eyeball structure of fetus in the second and third trimester of pregnancy. There was no significant difference of anterior posterior diameter, left and right diameter, upper and lower diameter, maximum cross-sectional area of eyeball, short axis nor long axis of lens between left and right eyes of fetuses (all P>0.05). Parameters of fetal eyeball in the third trimester group were all greater than those in the second trimester group (all P<0.05). The parameters of fetal eyeball were linearly positively correlated with gestational weeks (r=0.301—0.885, all P<0.05). The short axis of lens were lowly correlated with gestational weeks (r=0.301, 0.378, both P<0.05), intraocular distance, upper and lower diameter of eyeball and long axis of lens were moderately correlated with gestational weeks (r=0.539—0.787, all P<0.001), while extraocular distance, anterior and posterior diameter, left and right diameter and the maximum cross-sectional area of eyeball were highly correlated with gestational weeks (r=0.857—0.885, all P<0.001). Conclusion 3.0T MRI could clearly display the eyeball structure of fetus in the second and third trimester of pregnancy, therefore having certain value for evaluating fetal eyeball development. |
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