Results 121 to 130 of about 463,247 (329)

Multiple resolution residual network for automatic thoracic organs-at-risk segmentation from CT [PDF]

open access: yesarXiv, 2020
We implemented and evaluated a multiple resolution residual network (MRRN) for multiple normal organs-at-risk (OAR) segmentation from computed tomography (CT) images for thoracic radiotherapy treatment (RT) planning. Our approach simultaneously combines feature streams computed at multiple image resolutions and feature levels through residual ...
arxiv  

The Evolving Genomic Landscape of Barrett's Esophagus and Esophageal Adenocarcinoma.

open access: yesGastroenterology, 2017
We have recently gained unprecedented insight into genetic factors that determine risk for Barrett's esophagus (BE) and progression to esophageal adenocarcinoma (EA).
G. Contino   +3 more
semanticscholar   +1 more source

Assessment of Esophagogastric Junction Barrier Function With the Supine‐Upright Transition of the Chicago Classification Protocol

open access: yesNeurogastroenterology &Motility, EarlyView.
ABSTRACT Background & Aims The straight leg raise (SLR) is a provocative maneuver used to assess the esophagogastric junction (EGJ) barrier function during high‐resolution manometry (HRM) and is part of the Milan Score (MS). The Chicago Classification 4.0 (CCv4.0) protocol requires patients to perform a supine‐upright transition (SUT), increasing intra‐
Stefano Siboni   +17 more
wiley   +1 more source

Οισοφάγος barrett και αδενοκαρκίνωμα - ανασκόπηση [PDF]

open access: yes, 2013
Ο όρος οισοφάγος Barrett οφείλεται στον Άγγλο χειρουργό Norman Barrett ο οποίος τον πρωτοπεριέγραψε το 1950. Ο οισοφάγος Barrett θεωρείται προκαρκινωματώδης αλλοίωση, η οποία αυξάνει την πιθανότητα εμφάνισης αδενοκαρκινώματος ...
Γαδετσάκης Γεώργιος
core  

Contemporary esophageal physiological testing for primary esophageal motility disorder (PEMD) and gastroesophageal reflux disease (GERD) before bariatric surgery: A systematic literature review

open access: yesObesity Reviews, EarlyView.
Summary Objective This systematic review was conducted to evaluate the preoperative prevalence of primary esophageal motility disorders and gastroesophageal reflux disease in patients with morbid obesity before bariatric surgery. Background The use of esophageal manometry ± 24‐hour pH study before bariatric surgery was explored.
Muhammed Ashraf Memon   +3 more
wiley   +1 more source

Protoporphyrin IX Fluorescence Photobleaching Increases with the Use of Fractionated Irradiation in the Esophagus [PDF]

open access: yes, 2008
Fluorescence measurements have been used to track the dosimetry of photodynamic therapy (PDT) for many years, and this approach can be especially important for treatments with aminolevulinic-acid-induced protoporphyrin IX (ALA-PpIX).
Benevides, Juan   +6 more
core   +2 more sources

Confocal laser endomicroscopy for diagnosis of Barrett´s esophagus

open access: yesFrontiers in Oncology, 2012
Barrett´s esophagus (BE) is established as a premalignant condition in the distal esophagus. Current surveillance guidelines recommend random biopsies every 1-2 cm at intervals of 3-5 years.
Helmut eNeumann   +3 more
doaj   +1 more source

Clinical backgrounds and outcomes of patients with Barrett's esophageal adenocarcinoma treated via endoscopic submucosal dissection in Kyushu, Japan: A retrospective multicenter cohort study

open access: yesDEN Open, Volume 6, Issue 1, April 2026.
Abstract Objectives Most esophageal cancers in Japan are squamous cell carcinomas; however, there has been some concern regarding a recent increase in Barrett's esophageal adenocarcinoma (BEA). This study aimed to clarify the clinical characteristics and outcomes of patients treated via endoscopic submucosal dissection (ESD) in Kyushu, including ...
Fumisato Sasaki   +29 more
wiley   +1 more source

Value of cyclin A immunohistochemistry for cancer risk stratification in Barrett esophagus surveillance A multicenter case-control study [PDF]

open access: yes, 2016
The value of endoscopic Barrett esophagus (BE) surveillance based on histological diagnosis of low-grade dysplasia (LGD) remains debated given the lack of adequate risk stratification. The aim of this study was to evaluate the predictive value of cyclin
Biermann, K. (Katharina)   +9 more
core   +1 more source

Avaliação da expressão imunoistoquímica da proteína p16INK4a no adenocarcinoma de esôfago Protein p16INK4a immunohistochemical expression in adenocarcinoma of the esophagus

open access: yesABCD: Arquivos Brasileiros de Cirurgia Digestiva, 2011
INTRODUÇÃO: O adenocarcinoma de esôfago apresenta aumento de frequência nas últimas décadas, particularmente em países desenvolvidos. O esôfago de Barrett é reconhecido como a principal lesão precursora e o estudo da sequência metaplasia-displasia ...
Mário Henrique Osanai   +7 more
doaj   +1 more source

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