Z评分评价正常中晚孕期胎儿主动脉和肺动脉内径增长

发布时间：2018-05-17 14:47

本文选题：主动脉 + 肺动脉　；参考：《中国医学影像技术》2017年11期

【摘要】：目的探讨Z评分对评价正常中晚孕期胎儿主动脉(AO)、肺动脉(PA)内径增长的应用价值。方法通过前后2次产前超声心动图测量332胎正常胎儿的AO内径及PA内径。以AO内径、PA内径为应变量,胎儿双顶径(BPD)、胎儿股骨长径(FL)、孕周(GA)为自变量,建立回归方程,基于此计算AO、PA的Z评分。比较前后2次超声心动图检查Z评分的差异。结果首次胎儿超声心动图检查时GA为(25.82±2.27)周(18~35周),第2次检查时GA为(30.61±2.28)周(23~39周)。前后2次胎儿超声心动图检查所测胎儿AO内径、PA内径差异均有统计学意义(P均0.05)。2次超声心动图检查的AO内径及PA内径均随GA、BPD及FL的增长而增长。同一孕妇胎儿AO及PA的Z评分随GA、BPD及FL的增长而相对稳定。前后2次产前超声心动图检查胎儿AO、PA的Z评分的差异均无统计学意义(P均0.05)。结论正常胎儿AO和PA内径的增长与生物学参数的增长呈正相关,但Z-评分在中晚孕期相对保持恒定。
[Abstract]:Objective to evaluate the value of Z score in evaluating the diameter increase of AOA and PAA in fetal aorta and pulmonary artery during normal middle and late pregnancy. Methods AO and PA internal diameters of 332 normal fetuses were measured by antepartum echocardiography. The regression equation was established with AO internal diameter and PA internal diameter as dependent variable, fetal biparietal diameter as dependent variable, fetal femur long diameter flare and gestational weeks GA) as independent variables. The Z score of AOPA was calculated on the basis of this equation. The difference of Z score between two echocardiographic examinations was compared. Results GA was 25.82 卤2.27 weeks in the first fetal echocardiography and 30.61 卤2.28 weeks in the second check. There were significant differences in the internal diameter of AO and PA between the two fetal echocardiographic examinations (P < 0.05 or 0.05). The diameter of AO and PA increased with the increase of GABPD and FL. The Z scores of AO and PA in the same pregnant fetus were relatively stable with the increase of GAB PD and FL. There was no significant difference in Z score of AOPA between before and after two prenatal echocardiography (P < 0.05). Conclusion the increase of AO and PA in normal fetuses is positively correlated with the increase of biological parameters, but the Z- score remains relatively constant during the middle and late pregnancy.
【作者单位】：浙江大学医学院附属邵逸夫医院超声科浙江大学邵逸夫临床医学研究所;
【分类号】：R540.45;R714.5

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