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首页> 外文期刊>Journal of Clinical Ultrasound: JCU >Longitudinal doppler sonographic measurements of vascular impedance in the central and peripheral spiral arteries throughout pregnancy.
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Longitudinal doppler sonographic measurements of vascular impedance in the central and peripheral spiral arteries throughout pregnancy.

机译：纵向多普勒超声测量整个怀孕期间中央和周围螺旋动脉的血管阻抗。

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摘要

PURPOSE: We assessed vascular impedance in the spiral arteries in the central and peripheral placental bed throughout uncomplicated pregnancies. METHODS: Transabdominal color Doppler sonography was used to measure the pulsatility index (PI), resistance index (RI), and peak systolic velocity in the central and peripheral spiral arteries in 94 women with uncomplicated singleton pregnancies. Sonographic examinations took place approximately every 5 weeks from 10 to 40 weeks' menstrual age. RESULTS: PI, RI, and peak systolic velocity were not different in the central versus the peripheral segments of the spiral arteries. The PI and RI values of central spiral arteries after 25 weeks' menstrual age. The PI and RI values of peripheral arteries decreased after 20 weeks' menstrual age. CONCLUSIONS: Additional subjects are needed to clarify changes in the impedance of central and peripheral spiral arteries over the course of normal and complicated pregnancies. Copyright 2000 John Wiley & Sons, Inc.
机译：目的：我们评估了整个未怀孕期间在胎盘中央和周围胎盘螺旋动脉的血管阻抗。方法：采用腹部彩色多普勒超声检查94例单纯性单胎妊娠妇女的中央和周围螺旋动脉的搏动指数（PI），阻力指数（RI）和收缩期峰值速度。从月经年龄10到40周大约每5周进行一次超声检查。结果：PI，RI和峰值收缩速度在螺旋动脉的中心段和外围段没有差异。月经25周后中心螺旋动脉的PI和RI值。月经20周后，外周动脉的PI和RI值降低。结论：在正常和复杂的妊娠过程中，需要更多的受试者来阐明中央和外周螺旋动脉阻抗的变化。版权所有2000 John Wiley＆Sons，Inc.

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