We investigated the optimal operational conditions for utilizing a broadband supercontinuum (SC) source in a portable 800 nm spectral-domain (SD) endoscopic OCT system to enable high resolution, high-sensitivity, and high-speed imaging in vivo. A SC source with a 3-dB bandwidth of ∼246  nm was employed to obtain an axial resolution of ∼2.7  μm (in air) and an optimal detection sensitivity of ∼-107  dB with an imaging speed up to 35 frames/s (at 70 k A-scans/s). The performance of the SC-based SD-OCT endoscopy system was demonstrated by imaging guinea pig esophagus in vivo, achieving image quality comparable to that acquired with a broadband home-built Ti:sapphire laser.

Download full-text PDF

Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5881115PMC
http://dx.doi.org/10.1364/OL.41.000250DOI Listing

Publication Analysis

Top Keywords

optimal operational
8
operational conditions
8
endoscopic oct
8
conditions supercontinuum-based
4
supercontinuum-based ultrahigh-resolution
4
ultrahigh-resolution endoscopic
4
imaging
4
oct imaging
4
imaging investigated
4
investigated optimal
4

Similar Publications

Introduction: Pediatric liver transplantation provides substantial survival benefit. An emphasis on value-based practices has become a central theme in many surgical fields, but have not been well-studied in pediatric transplantation. Given an increasing focus on optimizing outcomes while containing costs, defining value in pediatric liver transplantation warrants investigation.

View Article and Find Full Text PDF

Rationale: Bilateral gluteus medius contractures in adults are rare in clinical practice, with only a few cases reported. These contractures may result from repeated intramuscular injections during childhood. Understanding the clinical manifestations, diagnostic process, treatment, and outcomes can provide insights into effective management strategies.

View Article and Find Full Text PDF

Inflammatory responses and lipid metabolism disorders are key components in the development of coronary artery disease and contribute to no-reflow after coronary intervention. This study aimed to investigate the association between the neutrophil to high-density lipoprotein ratio (NHR) and no-reflow phenomenon in ST-segment elevation myocardial infarction (STEMI) patients after primary percutaneous coronary intervention (PPCI). This study enrolled 288 patients with STEMI from September 1st, 2022 to February 29th, 2024, in the Zhengzhou Central Hospital Affiliated to Zhengzhou University.

View Article and Find Full Text PDF

Background: The aim is to develop age-specific anti-Müllerian hormone screening criteria for polycystic ovary syndrome to facilitate the early detection and diagnosis of the condition, and to subsequently evaluate the screening criteria.

Methods: A retrospective analysis was performed on patient data from Hangzhou Women's Hospital between July 2021 and August 2024. The use of restricted cubic spline analysis helped identify age-related inflection points, which were crucial for segmenting the patient population.

View Article and Find Full Text PDF

Perioperative Supportive Care Interventions to Enhance Surgical Outcomes for Older Adults With Cancer: A Systematic Review.

JCO Oncol Pract

January 2025

Section of Hematology & Oncology, Department of Medicine, University of Oklahoma Health Sciences Center, Stephenson Cancer Center, Oklahoma City, OK.

Purpose: Older adults with cancer have unique needs, which likely influence surgical outcomes in the geriatric oncology population. We conducted a systematic review to describe the literature focused on perioperative supportive care interventions for older adults with cancer undergoing surgery.

Methods: Following the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines, we performed a comprehensive search using the Ovid MEDLINE, CINAHL, and Embase databases for literature published from January 2010 to October 2023.

View Article and Find Full Text PDF

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!