Mariak Z, Obuchowska I, Ustymowicz A, Stankiewicz A
Katedry i Kliniki Okulistyki AM w Białymstoku.
Klin Oczna. 1999;101(2):105-10.
To evaluate the parameters of blood flow in orbital arteries of patients with traumatic optic neuropathy.
Colour Doppler imaging of the ophthalmic artery, central retinal artery and posterior ciliary arteries was carried out in 13 patients with traumatic injury of the optic nerve. The peak-systolic, end-diastolic flow velocities and resistance index were measured.
In 4 patients, whose vision was intact immediately after the injury and later deteriorated, the parameters of blood flow in the central retinal artery (CRA) were normal. Also in 3 patients with loss of vision to 1/50-3/50 after the injury the parameters of blood flow in the CRA were in the normal limit. In 3 other patients, who had only light perception after injury, there was decreased peak systolic blood flow and only trace or no flow was demonstrated in the CRA during the diastolic phase. In the remaining 3 patients, who displayed no light perception after the injury, no flow was observed in the CRA with Colour Doppler method.
Colour Doppler ultrasonography is a useful supplementary method in diagnostics of traumatic optic neuropathy. The Colour Doppler findings seem to correlate well with clinical pathologies of the optic nerve after its traumatic injury.
评估外伤性视神经病变患者眼眶动脉的血流参数。
对13例视神经外伤患者进行眼动脉、视网膜中央动脉和睫状后动脉的彩色多普勒成像检查。测量收缩期峰值、舒张末期血流速度和阻力指数。
4例受伤后视力即刻正常但随后恶化的患者，视网膜中央动脉（CRA）的血流参数正常。另外3例受伤后视力降至1/50 - 3/50的患者，CRA的血流参数也在正常范围内。其他3例受伤后仅存光感的患者，收缩期峰值血流减少，舒张期CRA仅显示微量血流或无血流。其余3例受伤后无光感的患者，彩色多普勒检查显示CRA无血流。
彩色多普勒超声检查是诊断外伤性视神经病变的一种有用的辅助方法。彩色多普勒检查结果似乎与视神经外伤后的临床病理情况密切相关。
