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Motorized capsule for shadow-free OCT imaging and synchronous beam control

Year: 2019
Type: article
Abstract: We demonstrate a tethered motorized capsule for unobstructed optical coherence tomography (OCT) imaging of the esophagus. By using a distal reflector design, we avoided the common shadow artifact induced by the motor wires. A synchronous driving technique features three types of beam-scanning modes of the capsule, i.e., circumferential beam scanning, localized beam scanning, and accurate beam positioning. We characterized these three modes and carried out ex vivo imaging experiments using the capsule. The results show that the capsule can potentially be a useful tool for diagnostic OCT imaging and OCT-guided biopsy and therapy of the esophagus.
DOI: 10.1364/ol.44.003641
Authors: Antonio López-Marín, Geert Springeling, Robert Beurskens, Heleen van Beusekom, Antonius F. W. van der Steen, Arjun D. Koch, Brett E. Bouma, Robert Huber, Gijs van Soest, Tianshi Wang
Institutions: Erasmus MC, Chinese Academy of Sciences, Shenzhen Institutes of Advanced Technology, Delft University of Technology, Harvard University, Massachusetts General Hospital, Massachusetts Institute of Technology, University of Lübeck
Language: English
Open Access status: green
OpenAlex ID: W2961410188
FWCI: 0.829
Cites: 15
Cited by: 16
Related to: 10