Tołwiński R, Tarasów E, Szulc S, Proniewska-Skretek E, Stankiewicz A
Zakładu Radiologii AM w Białymstoku.
Klin Oczna. 1997;99(6):359-62.
The aim of this study was to establish the normal values of blood flow velocities in ophthalmic and central retinal vessels.
29 healthy subjects: 18 men and 11 women, mean age 55 +/- 20 years, were examined in Color Doppler technique with spectral analysis with the 7.5 MHz linear transducer. The peak systolic, end diastolic and mean flow velocities were measured. The resistance index (RI) and pulsatility index (PI) were also estimated.
The values of velocities are comparable with results of other authors, especially when the similar frequency of the transducers was used. No significant differences of flow parameters were found between genders and right and left eyes when comparing the means. Ophthalmic artery velocities significantly declined as a function of age, but the RI and PI indices were similar. There were age-related differences between flow parameters in central retinal vessels.
Ultrasound system characteristics, methodology of the examination and age factor should be considered in clinical evaluation of orbital vessels with color Doppler imaging.
本研究的目的是确定眼内和视网膜中央血管血流速度的正常值。
29名健康受试者，18名男性和11名女性，平均年龄55±20岁，使用7.5MHz线性换能器通过彩色多普勒技术进行频谱分析检查。测量收缩期峰值、舒张末期和平均血流速度。还估算了阻力指数（RI）和搏动指数（PI）。
速度值与其他作者的结果相当，尤其是在使用类似频率的换能器时。比较平均值时，性别和左右眼之间的血流参数未发现显著差异。眼动脉速度随年龄显著下降，但RI和PI指数相似。视网膜中央血管的血流参数存在与年龄相关的差异。
在使用彩色多普勒成像对眼眶血管进行临床评估时，应考虑超声系统特性、检查方法和年龄因素。
