High-frequency Doppler ultrasound examination of blood flow in the anterior segment of the eye.
High-frequency Doppler ultrasound examination of blood flow in the anterior segment of the eye.
复制标题
高频多普勒超声检查眼前节血流。
DOI：
10.1016/s0002-9394(98)00122-6
复制
发表时间：
1998
影响因子：
4.2
通讯作者：
F. Foster
中科院分区：
文献类型：
--
作者：
C. Pavlin;D. A. Christopher;P. Burns;F. Foster
方法建立40-MHz连续波多普勒系统和60-MHz脉冲波多普勒系统，对两名正常志愿者的睫状体区域进行检测，并对虹膜大环区域的睫状体循环进行检测。这是无法检测到的传统的7.5 MHz双工多普勒，是一贯的和可重复检测的高频（40 MHz和60 MHz）多普勒systems. CONCLUSION高频多普勒成像可能提供一个独特的新工具的表征和评估眼前段眼血流。
PURPOSETo show that extending Doppler imaging into the high-frequency domain could allow detection and characterization of blood flow in small arterioles and capillaries.METHODSA 40-MHz continuous wave Doppler system and a 60-MHz pulsed-wave Doppler system were constructed, tested, and used to examine the ciliary body region in two normal volunteers.RESULTSCiliary body circulation in the region of the great circle of the iris, which is undetectable by conventional 7.5-MHz duplex Doppler, was consistently and reproducibly detectable by high-frequency (40-MHz and 60-MHz) Doppler systems.CONCLUSIONHigh-frequency Doppler imaging may provide a unique new tool for the characterization and assessment of anterior segment ocular blood flow.