Field programmable gate-array-based real-time optical Doppler tomography system for in vivo imaging of cardiac dynamics in the chick embryo
Field programmable gate-array-based real-time optical Doppler tomography system for in vivo imaging of cardiac dynamics in the chick embryo
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基于现场可编程门阵列的实时光学多普勒断层扫描系统，用于鸡胚心脏动态的体内成像
DOI：
10.1117/1.3081062
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发表时间：
2009
影响因子：
1.3
通讯作者：
T. Yelbuz
中科院分区：
文献类型：
--
作者：
L. Thrane;H. E. Larsen;K. Norozi;F. Pedersen;J. Thomsen;Maja Trojer;T. Yelbuz
我们展示了一种基于现场可编程门阵列的实时光学多普勒断层扫描系统。首次在光学相干断层扫描信号处理中使用复值带通滤波器来创建分析信号。与希尔伯特变换方法相比，该方法简化了滤波器设计，并且通过将解析信号的转换与脉冲整形功能相结合，实现了高效、紧凑的实现，而不需要额外的资源。分析信号到幅度和相位的转换是通过使用坐标旋转数字计算机 CORDIC 算法来完成的，这是一种有效的算法，可以很好地映射到现场可编程门阵列。介绍了流动体模实验，以及使用该系统对鸡胚心脏动力学进行体内成像。我们展示了早期胚胎心脏以及完全形成的鸡心脏的主动脉、周围小卵黄血管和冠状动脉中血流的可视化。 © 2009 光学光学学会
We demonstrate a field programmable gate- array-based real-time optical Doppler tomography system. A complex-valued bandpass filter is used for the first time in optical coherence tomography signal processing to create the analytic signal. This method simplifies the filter design, and allows efficient and compact implementation by combin- ing the conversion to an analytic signal with a pulse shaping function without the need for extra resources as compared to the Hilbert transform method. The conversion of the analytic signal to amplitude and phase is done by use of the coordi- nate rotation digital computer CORDIC algorithm, which is an efficient algorithm that maps well to the field program- mable gate array. Flow phantom experiments, and the use of this system for in vivo imaging of cardiac dynamics in the chick embryo, are presented. We demonstrate the visualiza- tion of blood flow in the early embryonic heart as well as in the aorta, small peripheric vitelline vessels, and coronary ar- teries of fully formed chick hearts. © 2009 Society of Photo-Optical
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影响因子：
3.5
作者：
Shikui Yan;D. Piao;Yueli L. Chen;Quing Zhu
通讯作者：
Shikui Yan;D. Piao;Yueli L. Chen;Quing Zhu
DOI：
10.1073/pnas.94.9.4256
发表时间：
1997-04-29
影响因子：
11.1
作者：
Boppart, SA;Tearney, GJ;Fujimoto, JG
通讯作者：
Fujimoto, JG
影响因子：
3.5
作者：
Jenkins, Michael W.;Chughtai, Osman Q.;Rollins, Andrew M.
通讯作者：
Rollins, Andrew M.
影响因子：
46.9
作者：
Fujimoto, JG
通讯作者：
Fujimoto, JG