MRI中C线位扫描在显示胎儿颅后窝池发育异常中的应用

发布时间：2018-06-27 23:12

  本文选题：胎儿 + 磁共振成像　； 参考：《中国医学计算机成像杂志》2015年05期

【摘要】：目的:探讨MRI C线位扫描在显示胎儿颅后窝池增宽的临床应用价值。方法:采用Siemens Avanto1.5T超导磁共振扫描仪,对30例B超怀疑颅后窝池增宽的中、晚期孕妇进行MR常规及C线的扫描,分别测量常规横断位及C线位颅后窝池最大宽度值,与B超测量颅后窝池宽度值对照,分别采用配对t检验对最大宽度值进行比较;以B超结果为标准,分别记录各组增宽例数,对各组检出率进行卡方检验。结果:B超测量颅后窝池平均宽度数值为(11.4±2.17)mm,常规横断位测出颅后窝池均值为(13.3±4.69)mm,而C线位测出颅后窝池宽度均值为(11.6±2.62)mm;常规横断位与B超测量值、C线测量值差异均有统计学意义(t=2.386,2.308,P=0.024,0.0280.05),C线位与B超测量值常差异无统计学意义(t=0.54,P=0.5890.05)。以B超测量最大宽度值≥10mm来诊断颅后窝池增宽,B超增宽26例(87%),常规横断位增宽21例(70%),C线位增宽25例(83%),三者检出率无显著性差异(P=0.1260.05)。结论:以B超测量值为标准,C线位对颅后窝池增宽的测量值较常规横断位更具有重要参考价值。
[Abstract]:Objective: to evaluate the clinical value of C-line MRI scan in displaying the enlargement of fetal posterior fossa cistern. Methods: Siemens Avanto 1.5T superconducting magnetic resonance scanner was used to detect the maximum width of posterior fossa cistern in 30 cases of middle and late pregnant women with suspected enlargement of posterior fossa cistern by B ultrasound. Compared with the width of the posterior cranial fossa cistern measured by B-ultrasound, the maximum width was compared by paired t test, and the number of widening cases in each group was recorded according to the results of B-ultrasound, and the detection rate of each group was checked by chi-square test. Results: the mean width of posterior cranial fossa cistern was (11.4 卤2.17) mm measured by B-ultrasound, the mean value of posterior fossa cistern was (13.3 卤4.69) mm by conventional transection, and the mean width of posterior fossa cistern by C-line was (11.6 卤2.62) mm. There was no significant difference between the C-line position and the measured value of B-ultrasound (t = 2.386 ~ 2.308U ~ (0.024) 0. 0280.05) (t = 0. 544 ~ 0. 5890.05), and there was no significant difference between the measured values of C line and B ultrasound (t = 0. 544). The maximum width value 鈮，

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