CONFERENCE PROCEEDINGS
Advanced Search
Home > Proceedings > Volume PC12842 > Article
Presentation
13 March 2024 Photoacoustic capsule endoscope for high-resolution in vivo imaging of gastrointestinal microvasculature
Jin Young Youm, Joon-Mo Yang
Author Affiliations +
Proceedings Volume PC12842, Photons Plus Ultrasound: Imaging and Sensing 2024; PC128420T (2024) https://doi.org/10.1117/12.3003632
Event: SPIE BiOS, 2024, San Francisco, California, United States
Abstract
The application of a capsular structure to the distal section of a catheter-based probe has been a subject of significant investigation in various optical endoscopy technologies, such as endoscopic optical coherence tomography and optical-resolution photoacoustic endoscopy, particularly concerning their gastrointestinal imaging applications. In this study, we developed a photoacoustic capsule endoscope with an 8-mm diameter to bring these benefits to our gastrointestinal endoscopic applications. We specifically chose the 8 mm diameter for the first prototype probe to investigate its feasibility and associated technical issues based on a rat colorectum model. The achieved lateral resolution was as low as 10 μm, sufficient for resolving capillaries, and we successfully conducted in vivo imaging at an A-line acquisition rate of 32 kHz, satisfying the Nyquist sampling theory. As a result, we obtained a clear in vivo 3D microvasculature image from a rat colorectum over a 360° full angular region, overcoming the blind spot issue that is often caused by imperfect acoustic coupling between a catheter probe and a target lumen.
Conference Presentation
© (2024) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Citation Download Citation
Jin Young Youm and Joon-Mo Yang "Photoacoustic capsule endoscope for high-resolution in vivo imaging of gastrointestinal microvasculature", Proc. SPIE PC12842, Photons Plus Ultrasound: Imaging and Sensing 2024, PC128420T (13 March 2024); https://doi.org/10.1117/12.3003632
ACCESS THE FULL ARTICLE
ORGANIZATIONAL
Sign in with credentials provided by your organization.
INSTITUTIONAL
Select your institution to access the SPIE Digital Library.
SELECT YOUR INSTITUTION
PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.
PERSONAL SIGN IN
No SPIE Account? Create one
PURCHASE THIS CONTENT
SUBSCRIBE TO DIGITAL LIBRARY
50 downloads per 1-year subscription
Members: $195
Non-members: $335 ADD TO CART
25 downloads per 1 - year subscription
Members: $145
Non-members: $250 ADD TO CART
PURCHASE SINGLE ARTICLE
Includes PDF, HTML & Video, when available
Members: $17.00
Non-members: $21.00 ADD TO CART
PROCEEDINGS
 PRESENTATION
WATCH
PRESENTATION SAVE TO MY LIBRARY
GET CITATION
Advertisement
Advertisement
KEYWORDS
In vivo imaging
Endoscopy
Photoacoustic spectroscopy
Endoscopes
Acoustic coupling
Optical coherence tomography
Optical surfaces
RELATED CONTENT
Subscribe to Digital Library
Receive Erratum Email Alert
Back to Top