Deutinger J, Rudelstorfer R, Häusler P, Bernaschek G
2nd Department of Obstetrics and Gynecology, University of Vienna, Austria.
Arch Gynecol Obstet. 1989;246(1):57-60. doi: 10.1007/BF00933078.
Transabdominal pulsed Doppler velocimetry in fetal arteries might be difficult with extreme obesity, anhydramnios, cord presentation and an unfavourable position of the fetal head. A vaginal transducer gets closer to the presenting part of the fetus and therefore has advantages for Doppler velocimetry in fetal arteries.
对于极度肥胖、羊水过少、脐带先露及胎头位置不佳的孕妇,经腹进行胎儿动脉脉冲多普勒测速可能会有困难。阴道探头更接近胎儿的先露部位,因此在胎儿动脉多普勒测速方面具有优势。