Hata T, Hata K, Aoki S, Takamiya O, Murao F, Kitao M
Department of Obstetrics and Gynecology, Shimane Medical University, Izumo, Japan.
Am J Obstet Gynecol. 1987 Nov;157(5):1269-71. doi: 10.1016/s0002-9378(87)80310-1.
Seventy-two continuous-wave Doppler ultrasonographic examinations were performed on nine nonpregnant and 56 normal pregnant women. The range of gestation was 6 to 40 weeks, and the objective was to record the renal arterial blood flow velocity waveform. Acceleration time and systolic per diastolic ratio of renal arterial blood flow velocity waveforms were assessed. Of 72 examinations, 68 recordings were made of the left renal artery (94.4%) and 28 of the right renal artery (38.9%), respectively. There was no correlation between acceleration time and systolic per diastolic ratio and gestational age, respectively, and no correlation between acceleration time and systolic per diastolic ratio, and caliceal diameter of the renal pelvis, respectively. Acceleration times of the left and right renal arteries were 47 +/- 11 and 40 +/- 8 msec in nonpregnant women and 62 +/- 23 and 62 +/- 23 msec in pregnant women, respectively. The left and right systolic per diastolic ratios were 3.1 +/- 0.7 and 2.9 +/- 0.5 in nonpregnant women and 2.8 +/- 0.6 and 2.6 +/- 0.5 in pregnant women, respectively. Therefore these data provide a foundation for the study of hydronephrosis, which may occur in pregnant women.
对9名未怀孕女性和56名正常孕妇进行了72次连续波多普勒超声检查。妊娠范围为6至40周，目的是记录肾动脉血流速度波形。评估了肾动脉血流速度波形的加速时间和收缩期与舒张期比值。在72次检查中，分别对左肾动脉进行了68次记录（94.4%），对右肾动脉进行了28次记录（38.9%）。加速时间与收缩期与舒张期比值分别与胎龄之间无相关性，加速时间与收缩期与舒张期比值分别与肾盂肾盏直径之间也无相关性。未怀孕女性左、右肾动脉的加速时间分别为47±11毫秒和40±8毫秒，孕妇分别为62±23毫秒和62±23毫秒。未怀孕女性左、右收缩期与舒张期比值分别为3.1±0.7和2.9±0.5，孕妇分别为2.8±0.6和2.6±0.5。因此，这些数据为研究孕妇可能发生的肾积水提供了基础。
