阴道三维能量多普勒超声检测妊娠黄体血流对异位妊娠的诊断价值

The value of transvaginal three-dimensional power Doppler ultrasound detecting the corpus luteum blood flow in the diagnosis of ectopic pregnancy

目的应用阴道三维能量多普勒超声对异位妊娠黄体和宫内妊娠黄体进行对比分析。方法临床拟诊宫外孕患者30例,手术前行阴道超声检查。使用三维能量多普勒超声观察异位妊娠黄体血流分布,并对同期31例宫内妊娠黄体进行观察。采集三维能量多普勒血流图并测量相应的血管参数:血管形成指数(VI)、血流指数(FI)、血管形成-血流指数(VFI)。比较异位妊娠黄体与宫内妊娠黄体血流分布及血管参数差异,评价其在异位妊娠鉴别诊断中的意义。结果异位妊娠黄体血流信号低于宫内妊娠黄体,异位妊娠黄体血管参数VI、VFI值低于宫内妊娠黄体,差异均有统计学意义(P<0.05),异位妊娠黄体FI值低于宫内妊娠黄体,但无统计学差异。结论阴道三维能量多普勒超声检测妊娠黄体血流信息,可为异位妊娠的诊断提供有价值信息。

Objective To compare the ectopic pregnancy corpus luteum with the gravid corpus luteum in transvaginal power Doppler ultrasound(PDUS).Methods The transvaginal ultrasound was done to the 30 cases whoes clinical diagnosis was ectopic pregnancy before surgery.We use the three-dimensional PDUS(3-D PDUS)to record the blood flow of the ectopic pregnancy corpus luteum,and meanwhile record the features of gravid corpus luteum.We check and collect the rheogram in 3-D PDUS and the corresponding vascularity index such as vascularization index(VI),blood flow index(FI)and vascularization-blood flow index(VFI).We compare the blood flow and vascularity index between the ectopic pregnancy corpus luteum and gravid corpus luteum,to evaluate its meaning in the differential diagnosis of ectopic pregnancy.Results The blood flow signal in ectopic pregnancy corpus luteum was less than gravid corpus luteum.The value of VI,VFI in ectopic pregnancy was lower than in gravid corpus luteum and there were significantly statistical differences(P<0.05).The value of FI in ectopic pregnancy corpus luteum was lower than in gravid corpus luteum but there was no significantly statistical difference.Conclusions The transvaginal 3-D PDUS detecting the blood flow feature is meaningful for the diagnosis of ectopic pregnancy.