Nazarian G K, Platt J F, Rubin J M, Ellis J H
Department of Radiology, University of Minnesota Hospital, Minneapolis 55455.
J Ultrasound Med. 1993 Aug;12(8):441-4. doi: 10.7863/jum.1993.12.8.441.
The purpose of this study was to establish the normal range of the renal RI in pregnant women. Maternal renal RIs were calculated in 61 asymptomatic pregnant patients with at least unilateral pyelocaliectasis. A mean RI was calculated for each kidney. Overall, the mean RI was 0.61 +/- 0.05. The renal RI was > or = 0.70 in 4% (5/121) of kidneys with no statistically significant difference between the mean right (0.62 +/- 0.06) and left (0.60 +/- 0.04) kidney RIs. There was no correlation between trimester of pregnancy or degree of pyelocaliectasis and RI.
本研究的目的是确定孕妇肾脏阻力指数（RI）的正常范围。对61例至少有单侧肾盂肾盏扩张的无症状孕妇计算其母体肾脏RI。计算每个肾脏的平均RI。总体而言，平均RI为0.61±0.05。在4%（5/121）的肾脏中，肾脏RI≥0.70，右侧肾脏平均RI（0.62±0.06）与左侧肾脏平均RI（0.60±0.04）之间无统计学显著差异。妊娠孕周或肾盂肾盏扩张程度与RI之间无相关性。
