与食管体内内镜光学相干断层扫描（OCT）图像相关的运动伪影。
Motion artifacts associated with in vivo endoscopic OCT images of the esophagus.
作者信息
Kang Wei, Wang Hui, Wang Zhao, Jenkins Michael W, Isenberg Gerard A, Chak Amitabh, Rollins Andrew M
机构信息
Department of Biomedical Engineering, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, Ohio 44106, USA.
出版信息
Opt Express. 2011 Oct 10;19(21):20722-35. doi: 10.1364/OE.19.020722.
Abstract
3-D optical coherence tomography (OCT) has been extensively investigated as a potential screening and/or surveillance tool for Barrett's esophagus (BE). Understanding and correcting motion artifact may improve image interpretation. In this work, the motion trace was analyzed to show the physiological origin (respiration and heart beat) of the artifacts. Results showed that increasing balloon pressure did not sufficiently suppress the physiological motion artifact. An automated registration algorithm was designed to correct such artifacts. The performance of the algorithm was evaluated in images of normal porcine esophagus and demonstrated in images of BE in human patients.
摘要
三维光学相干断层扫描（OCT）已被广泛研究作为巴雷特食管（BE）的潜在筛查和/或监测工具。理解并校正运动伪影可能会改善图像解读。在这项工作中，对运动轨迹进行了分析，以显示伪影的生理来源（呼吸和心跳）。结果表明，增加球囊压力并不能充分抑制生理运动伪影。设计了一种自动配准算法来校正此类伪影。该算法的性能在正常猪食管图像中进行了评估，并在人类患者的BE图像中得到了验证。
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