View clinical trials related to Adenoma.
Filter by:The aim of this study is to compare the visualization rates of the ampulla of Vater using forward- viewing endoscopes with or without cap attached to the distal end in the same patient.
Optical Enhancement Technology might be superior to the conventional HD-WL in detecting colorectal adenomas
Previous studies have shown geographic disparities in the detection of colorectal adenomas in Côte-d'Or, with an impact of the distance from the general practitioner and an ecological deprivation index (EDI). On the other hand, the extremely low detection rates for these lesions in everyday practice before the implementation of organized screening for colorectal cancer in the Côte-d'Or were shown. One of the aims of this screening is to reduce socio-geographic inequalities in access to care and prevention. Yet, participation in screening also varies depending on the socio-economic level. In this context, the Côte-d'Or Polyps Registry, the only body to have data for the pre-screening period (before 2003), will make it possible to determine whether the implementation of organized screening led to the elimination of socio-geographic disparities concerning the detection of adenomas.
A comparative prospective study to evaluate different imaging modalities (pet-ct and pet-mr) prior to surgery in parathyroid tumor patients.
High quality bowel preparation is essential for successful colonoscopy. This study aimed to assess the impact of reinforced education by Wechat or short message service (SMS) on the quality of bowel preparation. This prospective, endoscopist-blinded, randomized, controlled study was conducted. Reinforced education groups received additional education via reminders by Wechat or SMS 2 days before colonoscopy. The primary outcome was the quality of the bowel preparation according to the Boston Bowel Preparation Scale (BBPS). The secondary outcomes included polyp detection rate (PDR), adenoma detection rate (ADR), tolerance, and subjective feelings of patients.
The purpose of this study is to compare the additional diagnostic yield obtained by using the acetic acid as vital substance to improve the detection of serrated lesions at colonoscopy. Patients who are scheduled for screening, surveillance or diagnostic colonoscopy will be recruited to the study and randomized to one of two groups. Each enrolled subject will undergo two "back-to-back" procedures limited to the examination of the right colon. Subjects in Group A (study group) will undergo a standard colonoscopy. Once the right colon has been fully examined, acetic acid 2% will be sprayed and the right colon re-examined from cecum to hepatic flexure with within a frame-time of two minutes. Subjects in Group B (control group) will undergo a second examination of the right colon without acid acetic and within the same frame-time. Results from the two groups will be analyzed and compared, with primary outcome measures being detection rates for serrated lesions. Secondary outcome measures will include adenoma detection rate in the right colon or other locations, characteristics of polyps detected, including size and histological results. Subjects will be followed through a 24-72 hour telephone interview for analysis of unexpected adverse events. Clinical results will be analyzed using various statistical measures of significance.
Participation in a primary screening colonoscopy programs remains low. Advanced notification letter has been shown to increase participation in colorectal cancer screening with fecal occult blood testing and to be cost effective compared to standard invitation. It is unknown whether advanced notification letter increases participation rate in primary colonoscopy screening program. We hypothesize that an Advance Notification Letter will have significant influence on participation in screening colonoscopy, comparing to standard invitation procedure and will thus result in higher efficiency of the program. This randomized controlled study aims to compare the participation rate in screening colonoscopy in response to advanced notification plus standard invitation letter and standard invitation letter alone. Material and methods: 6800 individuals aged 55-64 years will be drawn from the Population Registry and randomly assigned in a 1:1 ratio to the group invited for screening colonoscopy with advanced notification letter (send two weeks before standard invitation) plus standard invitation (send six weeks before planned screening colonoscopy) or to standard invitation only (send six weeks before planned screening colonoscopy). The sample size was calculated to detect 3% difference in participation rate between the groups (25% vs 28%) with 80% power.
The purpose of the study is to check if the new CZT system has an advantage in detection of small osseous processes, thyroid adenomas, parathyroid adenomas and detection of sentinel node, in comparison with the techniques in use. Participants: 100 subjects male and female that come to the institute of nuclear medicine for routine screening examinations. The CZT screening takes 10 minutes and does not require any extra intervention to the routine screening.