Transrectal color Doppler sonography of the A-uterina in cyclic mares
Transrectal color Doppler sonography of the A-uterina in cyclic mares
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DOI：
10.1016/s0093-691x(98)00094-6
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发表时间：
1998-06-01
期刊：
影响因子：
2.8
通讯作者：
Stolla, R
中科院分区：
文献类型：
--
作者：
Bollwein, H;Maierl, J;Stolla, R
6例患者经直肠彩色多普勒超声定位左右Aa。在4个发情周期中的规定时间（第0、5、10、15和20天）获得流速波形。用阻力指数（RI）反映的血流量测定了120例双侧动脉。由于左右动脉之间的RI值无显著差异且高度相关（配对Student t检验，相关系数r > 0.94; P < 0.05），因此将平均RI值用于后续分析。RI值与发情周期天数、发情周期天数呈显著正相关（P < 0.0001）。2例经产妇（年龄12 ~ 13岁）的平均RI高于4例年轻未婚产妇（年龄6 ~ 10岁）（P < 0.05）。在发情周期中，第0天（排卵日）和第10天的RI值显著高于第5、15和20天（P < 0.05），而在发情周期内，各周期间的RI值无显著差异（P > 0.05）。结果表明，经直肠彩色多普勒超声检查是一种无创的方法，检查不同的月经周期和子宫血流阻抗的差异。(C)1998年，Elsevier Science Inc.
Color Doppler ultrasound was used transrectally in 6 mares to locate both the left and right Aa. uterinae and to obtain flow velocity waveforms at defined times (Days 0, 5, 10, 15 and 20) during 4 estrous cycles. Blood flow reflected by the resistance index (RI) was determined for both arteries on 120 occasions. As there was no significant difference and a high correlation in the RI values between the left and right arteries (paired Student's t-test, correlation coefficient r > 0.94; P < 0.05), the average RI value was used for subsequent analyses. There were correlations between RI values, mares and day of estrous cycle (P < 0.0001). The mean RI was higher (P < 0.05) in the 2 multiparous mares (age, 12 to 13 yr) than in the 4 younger maiden mares (age, 6 to 10 yr). During the estrous cycle mean RI values on Day 0 (day of ovulation) and Day 10 were higher (P < 0.05) than on Days 5, 15 and 20, whereas between estrous cycles within mares no differences (P > 0.05) could be measured. The results suggest that transrectal Color Doppler sonography is a noninvasive method for examining differences in impedance to uterine blood flow between different mares and cycle periods. (C) 1998 by Elsevier Science inc.