Results 41 to 50 of about 229,210 (273)

Detection of Colonic Polyps During Colonoscopy in a Tertiary Care Center of Nepal

Journal of Nepal Health Research Council, 2021
Background: Colorectal cancer is the third leading cause of cancer death in the world. Most colon cancer develop from the polyps. Data on the prevalence of colorectal polyps in Nepal is lacking.
Dinesh Koirala, Rahul Pathak, Brindeswari Kafle Bhandari, Anurag Jha, Rabin Hamal, Arun Gnawali, Rajesh Pandey, Mohan Bhusal   +7 more
doaj   +1 more source

Programmable Pneumatic Actuator System for a Bioinspired Artificial Colon

Advanced Materials Technologies, EarlyView.
A modular soft robotic colon simulator driven by programmable pneumatic actuation is developed to mimic physiological and pathological‐like motility patterns of the large intestine. Finite element–guided design and distributed control enable anatomically realistic deformation for peristalsis, segmentation, and mass movements, supporting capsule ...
Andrew Bickerdike, Bo Tian, Xizheng Fang, Zepeng Wang, Yang Liu, Lucy Adams, Shyam Prasad   +6 more
wiley   +1 more source

From Lab to Landscape: Environmental Biohybrid Robotics for Ecological Futures

Advanced Robotics Research, EarlyView.
This Perspective explores environmental biohybrid robotics, integrating living tissues, microorganisms, and insects for operation in real‐world ecosystems. It traces the leap from laboratory experiments to forests, wetlands, and urban environments and discusses key challenges, development pathways, and opportunities for ecological monitoring and ...
Miriam Filippi
wiley   +1 more source

Determining candidate polyp morphology from CT colonography using a level-set method [PDF]

, 2005
In this paper we propose a level-set segmentation for polyp candidates in Computer Tomography Colongraphy (CTC). Correct classification of the candidate polyps into polyp and non-polyp is, in most cases, evaluated using shape features.
Chowdhury, Tarik A., Lynch, Michael, Ghita, Ovidiu, Whelan, Paul F.   +3 more
core   +2 more sources

Variation between Pathological Measurement and Endoscopically Estimated Size of Colonic Polyps

GE: Portuguese Journal of Gastroenterology, 2018
Background and Aims: Accurate determination of colonic polyp size is vital to an appropriate surveillance. The main aim of this study was to evaluate variation between the polyp size reported by the endoscopist and its pathological measurement.
Catarina Atalaia-Martins, Pedro Marcos, Carina Leal, Sandra Barbeiro, Alexandra Fernandes, Antonieta Santos, Liliana Eliseu, Cláudia Gonçalves, Isabel Cotrim, Helena Vasconcelos   +9 more
doaj   +1 more source

Advanced Flexible Robotic Systems for the Early Diagnosis and Treatment of Cancer and Cardiovascular Diseases

Advanced Robotics Research, EarlyView.
Flexible surgical robots are advancing minimally invasive interventions for cardiovascular diseases and cancer by enabling precise navigation through complex, submillimeter anatomical pathways. This review highlights recent innovations in actuation, bio‐integrated sensing, AI‐assisted control, and friction‐reduction technologies, discusses current ...
Hermione Truong, Chi Cong Nguyen, Hannah Thuy Truong, Kefan Zhu, Adrienne Ji, James Davies, Emanuele Nicotra, Bibhu Sharma, Jingjing Wan, Patrick Pruscino, Shing Wai Wong, Hoang‐Phuong Phan, Phuoc Thien Phan, Nigel H. Lovell, Thanh Nho Do   +14 more
wiley   +1 more source

Melanosis coli: Harmless pigmentation? A case-control retrospective study of 657 cases. [PDF]

PLoS ONE, 2017
The association of melanosis coli with the development of colorectal polyps remains uncertain.From a total of 18263 patients who had received colonoscopy in our hospital, 219 with melanosis coli cases and 438 controls matched by age and sex (at 1:2 ratio)
Zhong Hui Liu, Dominic Chi Chung Foo, Wai Lun Law, Fion Siu Yin Chan, Joe King Man Fan, Jun Sheng Peng   +5 more
doaj   +1 more source

Review of Gastrointestinal Capsule Robots: Materials, Actuation, Diagnostics, and Therapeutics

Advanced Science, EarlyView.
This review examines gastrointestinal capsule robots through a systems engineering lens, covering shell materials, actuation and localization strategies, diagnostic modalities, therapeutic interventions, and commercialization status. By mapping the complete technological chain from fabrication to clinical deployment, this work identifies critical gaps ...
Zengsheng Li, Zhongguo Ren, Yiliang Lin, Xianfeng Xia, Tianlong Li, Kai Fung Chan, Philip Wai Yan Chiu, Wei Peng Yong, Mengmeng Sun   +8 more
wiley   +1 more source

A Novel tRNA Half mt‐5’‐tiRNA‐Tyr Promotes Colorectal Cancer Proliferation via Inducing HARS2 Succinylation

Advanced Science, EarlyView.
A mitochondria‐derived tRNA half, mt‐5’‐tiRNA‐Tyr, is upregulated in colorectal cancer tissues and plasma and promotes tumor proliferation. It binds HARS2 and promotes CPT1A‐associated HARS2 K91 succinylation, disrupts HARS2–mt‐tRNA‐His association, impairs mitochondrial translation, enhances succinate‐linked metabolic reprogramming, and shows promise ...
Xinliang Gu, Danping Zhu, Xinwei Liu, Shangshang Hu, Xincheng Yang, Junjie Nie, Tao Xu, Yuqin Pan, Mu Xu, Huiling Sun, Shukui Wang   +10 more
wiley   +1 more source

Adult Langerhans cell histiocytosis arising in colonic polyp: A case report and literature review

Human Pathology: Case Reports, 2019
Langerhans cell histiocytosis (LCH) is a rare disease characterized by unifocal, or multifocal unisystem, or disseminated/multisystem disease that commonly involves the bone, skin and lung.
Feras Zaiem, MD, Rafic Beydoun, MD
doaj   +1 more source