Color Doppler imaging of normal orbital vasculature.
Color Doppler imaging of normal orbital vasculature.
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正常眼眶脉管系统的彩色多普勒成像。
DOI：
10.1016/s0161-6420(95)30822-6
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发表时间：
1995
期刊：
影响因子：
13.7
通讯作者：
T. Hedges
中科院分区：
文献类型：
--
作者：
D. Greenfield;P. Heggerick;T. Hedges
背景：彩色多普勒成像已成为诊断眼部血管性疾病的有效工具。然而，关于正常值的资料很少。这项调查是为了产生一个数据库的正常球后循环parameters.Methods：作者前瞻性地研究了53个正常的眼球后血流动力学参数从32个健康人的不同年龄，所有没有危险因素的发展全身血管疾病。初步多普勒频谱分析，以显示正常的颈动脉，颈动脉虹吸，眼血管anatomic.Results：平均血流动力学值记录为每个球后血管。舒张压与眼动脉舒张末期血流速度（P< 0.05）和搏动指数（P< 0.05）显著相关。尽管睫状后动脉和视网膜中央动脉的舒张末期血流速度显著降低（P <0.05），血管阻力显著增加（P< 0.05），但在眼动脉中没有发现这种相关性，眼动脉在个体之间表现出显著更多的血流动力学变异性（P< 0.00001）。没有显着差异的血流量或血管阻力，注意到性别之间，同轨道，或鼻和颞支睫状后动脉在个别orbes.Conclusion：眼眶血流动力学参数不出现性别依赖性或变量之间的同胞轨道。这些数据表明，年龄和舒张压可能会影响正常的眼眶血流和血管阻力模式。显著的个体间变异仅限于眼动脉血流。
Background:Color Doppler imaging has become a useful adjunctive tool in diagnosing ophthalmic vascular disease. However, a paucity of information exists regarding normal values. This investigation was conducted to generate a database of normal retrobulbar circulatory parameters.Methods:The authors prospectively studied the retrobulbar hemodynamic parameters of 53 normal eyes from 32 healthy individuals of various ages, all without risk factors for the development of systemic vascular disease. Preliminary Doppler spectral analysis was used to demonstrate normal carotid arterial, carotid siphon, and ophthalmic vascular anatomy.Results:Mean hemodynamic values were recorded for each retrobulbar vessel. Diastolic blood pressure significantly correlated with ophthalmic arterial end-diastolic velocity (P< 0.05) and pulsatility index (P< 0.05). Although end-diastolic velocity significantly decreased (P< 0.05) and vascular resistance significantly increased (P< 0.05) as a function of age in the posterior ciliary and central retinal arterial circulation, no such correlation was identified in the ophthalmic artery which demonstrated significantly more hemodynamic variability among individuals (P< 0.00001). No significant differences in blood flow or vascular resistance were noted between sexes, fellow orbits, or the nasal and temporal branches of the posterior ciliary artery within individual orbits.Conclusion:Orbital hemodynamic parameters do not appear to be sex dependent or variable between fellow orbits. These data suggest that age and diastolic blood pressure may affect normal orbital blood flow and vascular resistance patterns. Significant interindividual variability is limited only to ophthalmic arterial blood flow.
影响因子：
4.4
作者：
C. Riva;J. Grunwald;S. Sinclair;B. Petrig
通讯作者：
C. Riva;J. Grunwald;S. Sinclair;B. Petrig
正常人视网膜中的血流。
影响因子：
4.4
作者：
Feke,GT;Tagawa,H;Deupree,DM;Goger,DG;Sebag,J;Weiter,JJ
通讯作者：
Weiter,JJ