时间—空间关联成像联合高分辨力血流显像技术显示孕中期胎儿奇静脉  

Application of spatio-temporal image correlation combined with high-difinition flow in demonstration of fetal azygos vein during the second gestation

作　　者：刘鲲[1] 孙彦坤[1] 肖保军[1] 郭海红[1] 

机构地区：[1]首都医科大学大兴医院超声科,北京市102600

出　　处：《临床超声医学杂志》2014年第10期674-676,共3页Journal of Clinical Ultrasound in Medicine

摘　　要：目的 探讨应用时间—空间关联成像（STIC）联合高分辨力血流显像（HD）技术显示孕中期胎儿奇静脉的可行性。方法 选取2013年3～11月期间进行胎儿畸形筛查的200例孕妇,随机分为两组,研究组100例应用STIC联合HD技术在胎儿胸腹部正中旁矢状切面显示奇静脉,通过图像旋转等后处理,观察奇静脉与胸主动脉关系,奇静脉弓的形态及奇静脉弓汇入上腔静脉的位置及方式。对照组100例应用二维超声联合CDFI技术对胎儿奇静脉进行显示。结果 1研究组100例胎儿共96例成功显示了奇静脉,显示成功率为96%,对照组100例胎儿共85例成功显示了奇静脉,显示成功率为85%。研究组优于对照组,P﹤0.05。2根据与脊柱的相对位置关系对奇静脉分型,奇静脉脊柱右侧型、中间型及左侧型所占比例分别为26.0%、33.9%及40.1%。3奇静脉与胸主动脉并行,至上腔静脉水平后向前弯曲形成弓形,汇入上腔静脉。41例下腔静脉肝段离断,奇静脉明显扩张,内径与胸主动脉相当。结论 STIC联合HD技术显示孕中期奇静脉可行,可观察奇静脉内径及走形,奇静脉弓的形态及汇入上腔静脉的位置及方式等,对导致奇静脉扩张的疾病如下腔静脉离断等具有提示诊断作用;该方法对奇静脉的显示率优于传统的二维超声联合CDFI。Objective To evaluate the feasibility of demonstrating the fetal azygos vein by spatio-temporal image correlation （STIC） combined with high-difinition flow （HD） imaging during the second gestation. Methods Two hundred fetuses between March 2013 to November 2013 were divided into 2 groups. In study group, STIC and HD were applied to demonstrate the azygos vein on the fetal thoracoabdominal para-midsagittal view, the relationship between the azygos vein and thoracic aorta, the shape, location and modality of archof azygos vein which joins the superior vena cava were observed after post processing.And two-dimensional ultrasound and color Doppler flow imaging （CDFI） was applyed in the control droup. Results 96/100 of the azygos vein was successfully demonstrated in the study group with the rate of 96% ,while 85/100 was successfully demonstrated in the control group with the rate of 85%. According to the relationship of the azygos vein with the spine ,the proportion of the right type,middle type and left type of the azygos vein was 26.0% ,33.9% ,40.1%. The azygos vein parallels with the thoracic aorta upside to the level of superior vena cava, and bends forward and joins the superior vena cava. In one case with hepatic segment of inferior vena eava interruption, wthe azygos vein was dilated with similar diameter to the thoracic aorta. Conclusion It is feasible to demonstrate the azygos vein by STIC combined with HD. The diameter, shape, location and manner of azygos vein can be observed.It can hint the diagnosis of disease that results in expansion of azygos vein. It is better than two-dimensional ultrasound combined.

关 键 词：时间—空间关联成像技术 胎儿心脏 奇静脉 

分 类 号：R714.43[医药卫生—妇产科学] R445.1[医药卫生—临床医学]