摘要
目的观察眼钝挫伤患者眼球血流动力学的变化。方法应用高频彩色多普勒超声技术对３０例患者（３４只眼）和５０例正常人（１００只眼）的视网膜中央动脉（ＣＲＡ）和睫状后动脉（ＰＣＡ）进行检测。结果①患者组ＣＲＡ和ＰＣＡ的最大血流速度（Ｖｍａｘ）增加，最小血流速度（Ｖｍｉｎ）降低，阻力指数（ＲＩ）明显增加（与对照组比较Ｐ值分别＜０．０５、＞０．０５和＜０．０１）。②患者组急性期与恢复期比较：ＣＲＡ的Ｖｍａｘ和Ｖｍｉｎ有显著性变化（Ｐ＜０．０５），ＲＩ亦有显著性差异（Ｐ＜０．０１），ＰＣＡ的血流变化不显著（Ｐ＞０．０５）。结论眼钝挫伤使眼球供血出现异常，其中以ＣＲＡ变化显著，恢复也慢，ＰＣＡ反之。
Objective\ To observe the change of ocular hemodymics in ocular contusion. Methods\ With high resolution color Doppler flow imaging, thirty patients (34 eyes) and fifty normal subjects (100 eyes) were observed. The peak systolic velocity (V max ), the end diastolic velocity(V min ) and resistance index (RI) of the central retinal artery (CRA) and the posterior ciliary artery (PCA) were compared in the two groups. Results\ ①Compared with the normal subjects, the patients with ocular contusion showed a increased V max in CRA and PCA ( P< 0.05) and a increased RI in CRA and PCA ( P< 0.01). ②All blood flow parameters of CRA in the patient group were significantly different between acute period renewal period: the patients in the renewal period of ocular contusion showed a decreased V max ( P< 0.05) and RI ( P< 0.01 ), a increased V min ( P< 0.05) in CRA compared with that in the acute period. Conclusions\ Abnormal blood supply of eyeball is present in ocular contusion. The changes of CRA is marked than PCA and the convalescence of CRA is slower than PCA.
出处
《中华超声影像学杂志》
CSCD
1999年第4期232-233,共2页
Chinese Journal of Ultrasonography
