Results 131 to 140 of about 537,635 (384)

Eye-tracking dataset of endoscopist-AI teaming during colonoscopy: Retrospective and real-time acquisition

open access: yesScientific Data
Recent studies have demonstrated that integrating AI into colonoscopy procedures significantly improves the adenoma detection rate (ADR) and reduces the adenoma miss rate (AMR).
Yan Zhu   +7 more
doaj   +1 more source

Safety and efficacy of endoscopic submucosal dissection for rectal neoplasia: a multicenter North American experience. [PDF]

open access: yes, 2019
Background and aims  Rectal lesions traditionally represent the first lesions approached during endoscopic submucosal dissection (ESD) training in the West. We evaluated the safety and efficacy of rectal ESD in North America.
Aadam, Abdul Aziz   +31 more
core   +1 more source

Extended field-of-view in a lensless endoscope using an aperiodic multicore fiber

open access: yes, 2016
We investigate lensless endoscopy using coherent beam combining and aperiodic multicore fibers (MCF). We show that diffracted orders, inherent to MCF with periodically arranged cores, dramatically reduce the field of view (FoV) and that randomness in MCF
Andresen, Esben Ravn   +6 more
core   +3 more sources

Wireless Capsule Device for Targeted and Safe Tissue Biopsy with Integrated Sensing

open access: yesAdvanced Materials Technologies, EarlyView.
This work presents a capsule device featuring a novel magnetically controlled biopsy mechanism for enhanced safety. The biopsy unit integrates a foldable linkage with dual magnets, creating a magnetic attraction–based safeguard, preventing unintended activation during locomotion. A flexible sensor provides real‐time penetration displacement sensing for
Kiyoung Kim   +5 more
wiley   +1 more source

From Two‐Photon Grayscale Lithography to Scalable Replication: Enabling Complex Aspherical Micro‐Optics for Mass Production

open access: yesAdvanced Optical Materials, EarlyView.
This study presents the replication of micro‐optics fabricated by two‐photon polymerization grayscale lithography via electroplating and injection molding, enabling mass production without loss of precision. A diffractive aspherical micro‐lens array is fabricated and replicated, and its performance is compared before and after replication ...
Stefan Wagner   +7 more
wiley   +1 more source

Hypoxia‐induced PGK1 expression promotes esophageal squamous cell carcinoma progression via stimulating MYH9‐mediated GSK3β/β‐catenin signalling

open access: yesClinical and Translational Medicine
Background Phosphoglycerate kinase 1 (PGK1) serves as a critical metabolic enzyme in the process of glycolysis and has many nonmetabolic functions in tumour progression.
Jia‐cheng Xu   +6 more
doaj   +1 more source

A novel wide viewing endoscope for upper gastrointestinal screening: a pilot study

open access: yesEndoscopy International Open, 2016
The feasibility of full-spectrum endoscopy (FUSE) esophagogastroduodenoscopy (EGD), providing a 245-degree field of view with double imagers on the front and left side of the endoscope was evaluated.
Naomi Kakushima   +11 more
doaj   +1 more source

Advancing Clinical Medicine with Raman Spectroscopy: Current Trends and Future Perspectives

open access: yesAdvanced Photonics Research, EarlyView.
Raman spectroscopy and microscopy may become excellent tools in clinical medicine, including hematology, oncology, infectious diseases, neurology, gastroenterology, reproductive medicine, rheumatology, and cardiovascular research. However, many challenges such as signal interference, standardization issues, and limited clinical application need to be ...
Jiří Bufka   +5 more
wiley   +1 more source

The Functional Equation and Beyond Endoscopy

open access: yes, 2012
In his paper "Beyond Endoscopy," Langlands tries to understand functoriality via poles of L-functions. The following paper further investigates the analytic continuation of a L-function associated to a $GL_2$ automorphic form through the trace formula ...
Herman, P. Edward
core   +1 more source

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