孕中期胎儿第四脑室正常值的产前超声诊断
[Abstract]:Objective to measure the normal value of the fourth ventricle in the second trimester by standardized prenatal ultrasound. Materials and methods routine ultrasound examination was performed in 516 pregnant women with single pregnancy at the gestational age of 18 to 27 weeks. The transverse diameter, anteroposterior diameter, circumference and area of fetal fourth ventricle were measured on the standard fourth ventricle plane. Results the display rate of fetal fourth ventricle section was 100 at 18 ~ 27 weeks after gestation. There was no significant difference in the values of the fourth ventricle between different genders (P0.05). The measured values, including the transverse diameter, anteroposterior diameter, circumference and area of the fourth ventricle, increased with the increase of gestational week, and were positively correlated with each other (r = 0.374 ~ (0.378) ~ (0.387). Conclusion the normal value of the fourth ventricle can be obtained by the standardized measurement of the fourth ventricle, which can be used as the reference value for the clinical judgment of the size of the fourth ventricle of the fetus.
【作者单位】: 四川省妇幼保健院超声科;四川大学华西第二医院超声科;
【分类号】:R445.1;R714.5
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