title: Motion artifacts associated with in vivo endoscopic OCT images of the esophagus.
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.
authors: Department of Biomedical Engineering, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, Ohio 44106, USA.
authors: Wei
authors: W
authors: Kang
authors: Hui
authors: H
authors: Wang
authors: Zhao
authors: Z
authors: Wang
authors: Michael W
authors: MW
authors: Jenkins
authors: Gerard A
authors: GA
authors: Isenberg
authors: Amitabh
authors: A
authors: Chak
authors: Andrew M
authors: AM
authors: Rollins
mesh_terms: D000465:Algorithms; D016477:Artifacts; D001331:Automation; D001471:Barrett Esophagus / Q000473:pathology*; D004724:Endoscopy / Q000379:methods*; D004947:Esophagus / Q000473:pathology*; D006801:Humans; D007091:Image Processing, Computer-Assisted; D021621:Imaging, Three-Dimensional; D015233:Models, Statistical; D009038:Motion; D055095:Optics and Photonics; D015203:Reproducibility of Results; D041623:Tomography, Optical Coherence / Q000379:methods*