Compensation of motion artifacts in catheter-based optical frequency domain imaging.
Compensation of motion artifacts in catheter-based optical frequency domain imaging.
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DOI：
10.1364/oe.18.011418
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发表时间：
2010-05-24
期刊：
影响因子：
3.8
通讯作者：
Bouma BE
中科院分区：
文献类型：
--
作者：
Ha JY;Shishkov M;Colice M;Oh WY;Yoo H;Liu L;Tearney GJ;Bouma BE
演示了一种新颖的外差多普勒干涉仪方法，用于补偿冠状动脉内光频域成像 (OFDI) 中心脏运动引起的运动伪影。为了跟踪导管相对于血管的相对运动，通过使用波分复用 (WDM) 技术将运动跟踪系统与标准 OFDI 系统结合在一起。在不影响成像光束的情况下，双 WDM 单色光束用于跟踪基于导管的光纤探头的相对径向和纵向速度。我们的结果表明，跟踪瞬时速度可用于补偿由于运动伪影导致的图像失真，从而通过基于导管的成像实现精确的重建和体积测量。
A novel heterodyne Doppler interferometer method for compensating motion artifacts caused by cardiac motion in intracoronary optical frequency domain imaging (OFDI) is demonstrated. To track the relative motion of a catheter with regard to the vessel, a motion tracking system is incorporated with a standard OFDI system by using wavelength division multiplexing (WDM) techniques. Without affecting the imaging beam, dual WDM monochromatic beams are utilized for tracking the relative radial and longitudinal velocities of a catheter-based fiber probe. Our results demonstrate that tracking instantaneous velocity can be used to compensate for distortion in the images due to motion artifacts, thus leading to accurate reconstruction and volumetric measurements with catheter-based imaging.