Results 51 to 60 of about 149,930 (358)

A Surface-normal Based Neural Framework for Colonoscopy Reconstruction [PDF]

open access: yesarXiv, 2023
Reconstructing a 3D surface from colonoscopy video is challenging due to illumination and reflectivity variation in the video frame that can cause defective shape predictions. Aiming to overcome this challenge, we utilize the characteristics of surface normal vectors and develop a two-step neural framework that significantly improves the colonoscopy ...
arxiv  

Motion-based Camera Localization System in Colonoscopy Videos [PDF]

open access: yesMedical image analysis. 2021 Oct 1;73:102180, 2020
Optical colonoscopy is an essential diagnostic and prognostic tool for many gastrointestinal diseases, including cancer screening and staging, intestinal bleeding, diarrhea, abdominal symptom evaluation, and inflammatory bowel disease assessment. Automated assessment of colonoscopy is of interest considering the subjectivity present in qualitative ...
arxiv   +1 more source

Precision Medicine for Gastric Cancer: Current State of Organoid Drug Testing

open access: yesOrganoids
Gastric cancer (GC) presents a significant health challenge and ranks as the fifth most common cancer in the world. Unfortunately, most patients with GC exhaust standard care treatment options due to late diagnosis and tumour heterogeneity that leads to ...
Tharindie N. Silva   +3 more
doaj   +1 more source

Current practice of colonoscopy surveillance in patients with lynch syndrome: A multicenter retrospective cohort study in Japan

open access: yesDEN Open, 2023
Objectives Colonoscopy surveillance reduces the incidence of colorectal cancer through the detection and endoscopic removal of adenomas. Current guidelines recommend that patients with Lynch syndrome should have colonoscopy surveillance every 1–2 years ...
Yasuyuki Miyakura   +16 more
doaj   +1 more source

ColonMapper: topological mapping and localization for colonoscopy [PDF]

open access: yesarXiv, 2023
We propose a topological mapping and localization system able to operate on real human colonoscopies, despite significant shape and illumination changes. The map is a graph where each node codes a colon location by a set of real images, while edges represent traversability between nodes.
arxiv  

Strategies to improve screening colonoscopy quality for the prevention of colorectal cancer [PDF]

open access: yesThe Korean Journal of Internal Medicine
The incidence and mortality of colorectal cancer (CRC) have decreased through regular screening colonoscopy, surveillance, and endoscopic treatment. However, CRC can still be diagnosed after negative colonoscopy.
Joo Hye Song, Eun Ran Kim
doaj   +1 more source

Quality indicators of colonoscopy care: a qualitative study from the perspectives of colonoscopy participants and nurses

open access: yesBMC Health Services Research, 2022
Background Quality of care in colonoscopy is closely related to colonoscopy participants and the nursing workforce in endoscopy-related settings. However, limited data are available on the evaluations and recommendations regarding quality indicators for ...
Wenwen Cai   +5 more
doaj   +1 more source

Using a hypothetical scenario to assess public preferences for colorectal surveillance following screening-detected, intermediate-risk adenomas: annual home-based stool test vs. triennial colonoscopy [PDF]

open access: yes, 2016
Background To assess public preferences for colorectal cancer (CRC) surveillance tests for intermediate-risk adenomas, using a hypothetical scenario. Methods Adults aged 45–54 years without CRC were identified from three General Practices in England (two
Atkin, W   +7 more
core   +2 more sources

MeVGAN: GAN-based Plugin Model for Video Generation with Applications in Colonoscopy [PDF]

open access: yesarXiv, 2023
Video generation is important, especially in medicine, as much data is given in this form. However, video generation of high-resolution data is a very demanding task for generative models, due to the large need for memory. In this paper, we propose Memory Efficient Video GAN (MeVGAN) - a Generative Adversarial Network (GAN) which uses plugin-type ...
arxiv  

A radiological complete response to pembrolizumab in a patient with metastatic upper urinary tract urothelial cancer and Lynch syndrome

open access: yesIJU Case Reports, Volume 6, Issue 1, Page 33-36, January 2023., 2023
Introduction In Lynch syndrome, urothelial cancer is the third most common cancer, following colorectal and endometrial cancers. Little is known, however, about the efficacy of immune checkpoint inhibitors in the treatment of metastatic urothelial cancer in Lynch syndrome.
Ryosuke Oki   +7 more
wiley   +1 more source

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