FETAL LITERAL VENTRICLES - REASSESSMENT OF NORMAL VALUES FOR ATRIAL DIAMETER AT US
FETAL LITERAL VENTRICLES - REASSESSMENT OF NORMAL VALUES FOR ATRIAL DIAMETER AT US
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DOI：
10.1148/radiology.193.2.7972754
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发表时间：
1994-11-01
期刊：
影响因子：
19.7
通讯作者：
PAINE, SS
中科院分区：
文献类型：
--
作者：
FARRELL, TA;HERTZBERG, BS;PAINE, SS
目得：评估正常范围，脑室心房直径在第二和第三trimesters的pregnancy.MATERIALS AND METHODS：横向直径的侧脑室心房进行了前瞻性测量，在739个连续的产前超声检查定位电子卡尺上的腔边缘的心室壁，垂直于长轴的心室。所有739项研究的合并组的平均室房直径为5.4 mm +/- 1.2（标准差）。心室心房的横径并不随胎龄的增加而逐渐增大。所有小于17个月经周的胎儿心室心房直径小于8 mm，4个胎儿心室直径大于10 mm。对于25周及以上的胎龄，心房横径的合理正常上限似乎是10 mm。在25周之前，直径超过8 mm在健康胎儿中是不常见的，并且表明需要对胎儿解剖结构进行详细评估。
PURPOSE: To assess the normal range of,cerebral ventricular atrial diameters during the second and third trimesters of pregnancy.MATERIALS AND METHODS: The transverse diameter of the atrium of the lateral ventricle was prospectively measured in 739 consecutive antenatal ultrasound examinations by positioning electronic calipers on the luminal margins of the ventricular wall, perpendicular to the long axis of the ventricle.RESULTS: The mean ventricular atrial diameter for the combined group of all 739 studies was 5.4 mm +/- 1.2 (standard deviation). The transverse diameter of the ventricular atrium did not progressively increase with advancing gestational age. All fetuses younger than 17 menstrual weeks had ventricular atrial diameters less than 8 mm. Four fetuses had ventricular diameters of 10 mm br greater.CONCLUSION: A reasonable upper limit of normal for transverse atrial diameter for gestational age of 25 weeks and above appears to be 10 mm. Prior to 25 weeks, diameters over 8 mm are unusual in the healthy fetus and signal the need for a detailed evaluation of fetal anatomy.