Hemodynamic measurements from individual blood cells in early mammalian embryos with Doppler swept source OCT.

Hemodynamic measurements from individual blood cells in early mammalian embryos with Doppler swept source OCT.
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DOI:
10.1364/ol.34.000986
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发表时间:
2009-04-01
期刊:
影响因子:
3.6
通讯作者:
Larin KV
Larin KV
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
Larina IV;Ivers S;Syed S;Dickinson ME;Larin KV

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最常见和致命的出生缺陷影响心血管(CV)系统。小鼠是识别和理解哺乳动物CV出生缺陷的上级模型,但非常需要能够检测小鼠胚胎心脏功能早期和细微缺陷的工具。我们结合扫描源光学相干断层扫描(SS-OCT)与活小鼠胚胎培养协议,在心跳开始后几个小时内,在活的8.5天胚胎中生成结构二维和三维成像以及血液动力学测量。我们的数据表明,单个循环血细胞可以用结构SS-OCT可视化,并使用多普勒SS-OCT在心跳周期的不同阶段测量单个移动血细胞的速度。这些结果表明,多普勒SS-OCT是一个非常有用的工具,在哺乳动物血液循环的最早阶段的结构和血流动力学分析。
The most common and lethal birth defects affect the cardiovascular (CV) system. The mouse is a superior model for identifying and understanding mammalian CV birth defects, but there is a great need for tools that can detect early and subtle deficiencies in cardiac function in mouse embryos. We combined swept source optical coherence tomography (SS-OCT) with live mouse embryo culture protocols to generate structural two-dimensional and three-dimensional imaging and hemodynamic measurements in a live 8.5 day embryo just a few hours after the beginning of a heartbeat. Our data show that individual circulating blood cells can be visualized with structural SS-OCT, and using Doppler SS-OCT the velocity of single moving blood cells were measured during different phases of the heartbeat cycle. These results demonstrate that Doppler SS-OCT is an extremely useful tool for structural and hemodynamic analysis at the earliest stages of mammalian blood circulation.
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