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目的对早孕期胎儿超声软指标在胎儿心脏结构评估中的价值展开研究分析。方法随机选取我院接收的100例孕11~14周胎儿,均开展超声检查,并对检查结果、妊娠结局进行记录分析,对超声软指标在早孕期胎儿心脏结构检查中的阳性率进行计算,评价其对严重CHD胎儿评估的敏感性。结果 100例孕11~14周胎儿头臀长范围44.7~83.6mm,平均头臀长(66.7±13.1)mm;胎儿颈项透明带厚度范围0.8~2.7mm,平均颈项透明带厚度(1.5±0.3)mm;可见左室流出道切面60例(60.0%),可见右室流出道切面50例(50.0%),可见四腔心切面93例(93.0%),可见三血管切面36例(36.0%)。伴随孕周增加,胎儿心脏各切面显示率均提升(P<0.05)。孕11周四腔心切面显示率70.6%,显著高于其他切面显示率,对比差异具备统计学意义(P<0.05);4例胎儿疑诊复杂CHD,包括左心发育不良1例,右心发育不良1例,三尖瓣中度反流1例,完全型心内膜垫缺损1例。结论早孕期超声软指标中NT超过3.0mm、三尖瓣反流或静脉导管A波倒置对胎儿心脏结构有确切的临床评估价值,孕11~14周胎儿超声心动图可筛查呈现四腔心结构异常复杂CHD。
Objective To investigate the value of fetal ultrasound soft index in the assessment of fetal cardiac structure in early pregnancy. Methods A total of 100 fetuses of 11-14 weeks of gestation received in our hospital were randomly selected. Ultrasound examination was performed. Results and pregnancy outcomes were recorded and analyzed. The positive rates of soft soft index in early fetal heart structure examination were calculated. Evaluate its sensitivity to severe CHD fetus assessment. Results The fetal head-to-hip length ranged from 44.7 to 83.6 mm and the average head-to-hip length (66.7 ± 13.1) mm in 100 pregnancies from 11 to 14 weeks. The thickness of the fetal neck zona pellucida ranged from 0.8 to 2.7 mm and the mean neck zona pellucida thickness (1.5 ± 0.3) mm. There were 60 cases (60.0%) of the left ventricular outflow tract section, 50 cases (50.0%) of right ventricular outflow tract section, 93 cases (93.0% . With the increase of gestational age, the display rate of fetal heart sections increased (P <0.05). The 11th week of pregnancy showed a 70.6% rate of four-chamber coronal section, which was significantly higher than that of other sections (P <0.05). Four cases of complicated fetal suspected CHD included left ventricular dysplasia in 1 case, 1 case of dysplasia, 1 case of moderate tricuspid regurgitation, 1 case of complete endocardial cushion defect. CONCLUSIONS: The ultrasonographic soft index of early pregnancy is more than 3.0mm in NT, and the tricuspid regurgitation or A-wave inversion of venous catheter has definite clinical evaluation value on fetal cardiac structure. Fetal echocardiography can be used to screen the four-chamber heart Complex structure CHD.