Shadow-free motorized capsule enables accurate beam positioning and sectorized OCT imaging of the esophagus

Antonio López-Marín; Geert Springeling; Robert Beurskens; Heleen Van Beusekom; Antonius Van Der Steen; Arjun D. Koch; Brett E. Bouma; Robert A. Huber; Gijs Van Soest; Tianshi Wang

doi:10.1117/12.2545689

Shadow-free motorized capsule enables accurate beam positioning and sectorized OCT imaging of the esophagus

Antonio López-Marín, Geert Springeling, Robert Beurskens, Heleen Van Beusekom, Antonius Van Der Steen, Arjun D. Koch, Brett E. Bouma, Robert A. Huber, Gijs Van Soest, Tianshi Wang

Institute of Biomedical Optics

Abstract

In this study, we demonstrate a 12x36 mm motorized capsule for OCT imaging of the esophagus. The capsule produces unobstructed images by using a distal reflector design, thus avoiding shadow caused by the motor wires. The motor synchronous control enables three working modes: circumferential imaging, angular sector imaging and accurate beam positioning. Distortion artifacts shown in the sector imaging were found to be induced by velocity changes of the motor. We specifically characterized the motor speed and found a symmetric and repeatable behavior during sector scanning. Resampling of the sector images A-lines was carried out to achieve uniform angular spacing according to the measured speed profile. Also, distortion between consecutive sector frames was corrected using image registration to achieve stable imaging.

Original language	English
Title of host publication	Endoscopic Microscopy XV
Editors	Guillermo J. Tearney, Thomas D. Wang, Melissa J. Suter
Number of pages	6
Volume	11214
Publisher	SPIE
Publication date	26.02.2020
Article number	112140O
ISBN (Print)	978-151063191-5
DOIs	https://doi.org/10.1117/12.2545689
Publication status	Published - 26.02.2020
Event	Endoscopic Microscopy XV 2020 - San Francisco, United States Duration: 01.02.2020 → 02.02.2020 Conference number: 158483

Research Areas and Centers

Academic Focus: Biomedical Engineering

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This output contributes to the following UN Sustainable Development Goals (SDGs)

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López-Marín, A., Springeling, G., Beurskens, R., Van Beusekom, H., Van Der Steen, A., Koch, A. D., Bouma, B. E., Huber, R. A., Van Soest, G., & Wang, T. (2020). Shadow-free motorized capsule enables accurate beam positioning and sectorized OCT imaging of the esophagus. In G. J. Tearney, T. D. Wang, & M. J. Suter (Eds.), Endoscopic Microscopy XV (Vol. 11214). Article 112140O (Progress in Biomedical Optics and Imaging - Proceedings of SPIE; Vol. 11214). SPIE. https://doi.org/10.1117/12.2545689

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title = "Shadow-free motorized capsule enables accurate beam positioning and sectorized OCT imaging of the esophagus",

abstract = "In this study, we demonstrate a 12x36 mm motorized capsule for OCT imaging of the esophagus. The capsule produces unobstructed images by using a distal reflector design, thus avoiding shadow caused by the motor wires. The motor synchronous control enables three working modes: circumferential imaging, angular sector imaging and accurate beam positioning. Distortion artifacts shown in the sector imaging were found to be induced by velocity changes of the motor. We specifically characterized the motor speed and found a symmetric and repeatable behavior during sector scanning. Resampling of the sector images A-lines was carried out to achieve uniform angular spacing according to the measured speed profile. Also, distortion between consecutive sector frames was corrected using image registration to achieve stable imaging.",

author = "Antonio L{\'o}pez-Mar{\'i}n and Geert Springeling and Robert Beurskens and {Van Beusekom}, Heleen and {Van Der Steen}, Antonius and Koch, {Arjun D.} and Bouma, {Brett E.} and Huber, {Robert A.} and {Van Soest}, Gijs and Tianshi Wang",

note = "Publisher Copyright: {\textcopyright} COPYRIGHT SPIE. Downloading of the abstract is permitted for personal use only. Copyright: Copyright 2020 Elsevier B.V., All rights reserved.; Endoscopic Microscopy XV 2020 ; Conference date: 01-02-2020 Through 02-02-2020",

year = "2020",

month = feb,

day = "26",

doi = "10.1117/12.2545689",

language = "English",

isbn = "978-151063191-5",

volume = "11214",

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López-Marín, A, Springeling, G, Beurskens, R, Van Beusekom, H, Van Der Steen, A, Koch, AD, Bouma, BE, Huber, RA, Van Soest, G & Wang, T 2020, Shadow-free motorized capsule enables accurate beam positioning and sectorized OCT imaging of the esophagus. in G J. Tearney, T D. Wang & M J. Suter (eds), Endoscopic Microscopy XV. vol. 11214, 112140O, Progress in Biomedical Optics and Imaging - Proceedings of SPIE, vol. 11214, SPIE, Endoscopic Microscopy XV 2020 , San Francisco, California, United States, 01.02.20. https://doi.org/10.1117/12.2545689

Shadow-free motorized capsule enables accurate beam positioning and sectorized OCT imaging of the esophagus. / López-Marín, Antonio; Springeling, Geert; Beurskens, Robert et al.
Endoscopic Microscopy XV. ed. / Guillermo J. Tearney; Thomas D. Wang; Melissa J. Suter. Vol. 11214 SPIE, 2020. 112140O (Progress in Biomedical Optics and Imaging - Proceedings of SPIE; Vol. 11214).

Research output: Chapters in Books/Reports/Conference Proceedings › Conference contribution › peer-review

TY - GEN

T1 - Shadow-free motorized capsule enables accurate beam positioning and sectorized OCT imaging of the esophagus

AU - López-Marín, Antonio

AU - Springeling, Geert

AU - Beurskens, Robert

AU - Van Beusekom, Heleen

AU - Van Der Steen, Antonius

AU - Koch, Arjun D.

AU - Bouma, Brett E.

AU - Huber, Robert A.

AU - Van Soest, Gijs

AU - Wang, Tianshi

N1 - Conference code: 158483

PY - 2020/2/26

Y1 - 2020/2/26

N2 - In this study, we demonstrate a 12x36 mm motorized capsule for OCT imaging of the esophagus. The capsule produces unobstructed images by using a distal reflector design, thus avoiding shadow caused by the motor wires. The motor synchronous control enables three working modes: circumferential imaging, angular sector imaging and accurate beam positioning. Distortion artifacts shown in the sector imaging were found to be induced by velocity changes of the motor. We specifically characterized the motor speed and found a symmetric and repeatable behavior during sector scanning. Resampling of the sector images A-lines was carried out to achieve uniform angular spacing according to the measured speed profile. Also, distortion between consecutive sector frames was corrected using image registration to achieve stable imaging.

AB - In this study, we demonstrate a 12x36 mm motorized capsule for OCT imaging of the esophagus. The capsule produces unobstructed images by using a distal reflector design, thus avoiding shadow caused by the motor wires. The motor synchronous control enables three working modes: circumferential imaging, angular sector imaging and accurate beam positioning. Distortion artifacts shown in the sector imaging were found to be induced by velocity changes of the motor. We specifically characterized the motor speed and found a symmetric and repeatable behavior during sector scanning. Resampling of the sector images A-lines was carried out to achieve uniform angular spacing according to the measured speed profile. Also, distortion between consecutive sector frames was corrected using image registration to achieve stable imaging.

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M3 - Conference contribution

SN - 978-151063191-5

VL - 11214

T3 - Progress in Biomedical Optics and Imaging - Proceedings of SPIE

BT - Endoscopic Microscopy XV

A2 - J. Tearney, Guillermo

A2 - D. Wang, Thomas

A2 - J. Suter, Melissa

PB - SPIE

T2 - Endoscopic Microscopy XV 2020

Y2 - 1 February 2020 through 2 February 2020

ER -

López-Marín A, Springeling G, Beurskens R, Van Beusekom H, Van Der Steen A, Koch AD et al. Shadow-free motorized capsule enables accurate beam positioning and sectorized OCT imaging of the esophagus. In J. Tearney G, D. Wang T, J. Suter M, editors, Endoscopic Microscopy XV. Vol. 11214. SPIE. 2020. 112140O. (Progress in Biomedical Optics and Imaging - Proceedings of SPIE). doi: 10.1117/12.2545689

Shadow-free motorized capsule enables accurate beam positioning and sectorized OCT imaging of the esophagus

Abstract

Research Areas and Centers

UN SDGs

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