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目的探讨实时双平面成像(Bi-plane)技术在胎儿心脏结构筛查的临床应用价值。方法选择150例孕妇作为研究对象,年龄22~36岁,平均年龄27.7岁;孕周24~30周,平均孕周26.2周。分别采用常规二维超声和实时Biplane技术两种方法成像主动脉弓切面、动脉导管弓切面、腔静脉长轴切面、右心室流出道切面、三血管-气管切面及二、三尖瓣短轴切面等基础切面,记录成像率和整体成像时间,并进行对比。结果常规二维超声法获取到的主动脉弓切面、动脉导管弓切面、右心室流出道切面及三血管-气管切面的成像率与实时Bi-plane技术的成像率比较,差异均无统计学意义(P>0.05)。常规二维超声法获取到的腔静脉长轴切面和二、三尖瓣短轴切面的成像率与实时Bi-plane技术的成像率比较,差异均有统计学意义(P<0.05)。常规二维超声法成像时间与实时Bi-plane技术比较,差异无统计学意义(P>0.05)。结论实时Bi-plane技术是一种产前观察胎儿心脏直接、准确、方便、快捷的新方法 ,在对胎儿心脏基础切面及信息检查方面具有独特的优势,可作为常规二维超声心动图的辅助检查方法,具有重要的临床应用价值。
Objective To explore the clinical value of real-time bi-plane imaging in the screening of fetal cardiac structure. Methods 150 pregnant women were selected as study subjects, aged 22-36 years, with an average age of 27.7 years. The gestational age ranged from 24 to 30 weeks with an average gestational age of 26.2 weeks. Two methods of conventional two-dimensional ultrasound and real-time Biplane technique were used to image the aortic arch section, the arch of the arterial catheter, the longitudinal section of the vena cava, the section of the right ventricular outflow tract, the three-vessel-tracheal section and the tricuspid short- Section, recording imaging rate and the overall imaging time, and compared. Results There was no significant difference in the imaging rates of the aortic arch, the patent ductus arteriosus, the right ventricular outflow tract and the tri-vascular-tracheal section compared with the real-time Bi-plane imaging in conventional two-dimensional ultrasound > 0.05). The imaging rates of long-axis vena cava and short-axis tricuspid views acquired by conventional two-dimensional ultrasound were significantly different from those of real-time Bi-plane imaging (P <0.05). Conventional two-dimensional ultrasound imaging time and real-time Bi-plane technology, the difference was not statistically significant (P> 0.05). Conclusion The real-time Bi-plane technique is a new method to observe the fetal heart directly, accurately, conveniently and rapidly in prenatal period. It has unique advantages in basic aspects of fetal heart and information examination and can be used as a supplement to conventional two-dimensional echocardiography Inspection methods, has important clinical value.