Detailed Information

Cited 3 time in webofscience Cited 2 time in scopus
Metadata Downloads

Intra-instrument channel workable, optical-resolution photoacoustic and ultrasonic mini-probe system for gastrointestinal endoscopy

Authors
Kim, MinjaeLee, Kang WonKim, KiSikGulenko, OleksandraLee, CheolKeum, BoraChun, Hoon JaiChoi, Hyuk SoonKim, Chae UnYang, Joon-Mo
Issue Date
Jun-2022
Publisher
Elsevier GmbH
Keywords
Photoacoustic endoscopy; Endoscopic ultrasound; Video endoscope; Instrument channel; Swine esophagogastric junction; Rat colorectum; Vasculature hierarchism
Citation
Photoacoustics, v.26
Indexed
SCIE
SCOPUS
Journal Title
Photoacoustics
Volume
26
URI
https://scholarworks.korea.ac.kr/kumedicine/handle/2021.sw.kumedicine/55659
DOI
10.1016/j.pacs.2022.100346
Abstract
There has been a long-standing expectation that the optical-resolution embodiment of photoacoustic tomography could have a substantial impact on gastrointestinal endoscopy by enabling microscopic visualization of the vasculature based on the endogenous contrast mechanism. Although multiple studies have demonstrated the in vivo imaging capability of a developed imaging device over the last decade, the implementation of such an endoscopic system that can be applied immediately when necessary via the instrument channel of a video endoscope has been a challenge. In this study, we developed a 3.38-mm diameter catheter-based, integrated optical-resolution photoacoustic and ultrasonic mini-probe system and successfully demonstrated its intrainstrument channel workability for the standard 3.7-mm diameter instrument channel of a clinical video endoscope based on a swine model. Through the instrument channel, we acquired the first in vivo dual-mode photoacoustic and ultrasonic endoscopic images from the esophagogastric junction of a swine. Further, in a rat colorectum in vivo imaging experiment, we visualized hierarchically developed mesh-like capillary networks with a hole size as small as ~50 mu m, which suggests the potential level of image details that could be photo acoustically provided in clinical settings in the future.
Files in This Item
There are no files associated with this item.
Appears in
Collections
2. Clinical Science > Department of Gastroenterology and Hepatology > 1. Journal Articles

qrcode

Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.

Related Researcher

Researcher Keum, Bora photo

Keum, Bora
Anam Hospital (Department of Gastroenterology and Hepatology, Anam Hospital)
Read more

Altmetrics

Total Views & Downloads

BROWSE