Browse
Submit Data
Databases
API
Help

Dataset Information

0 Views

0 Connections

0 Citations

0 Reanalyses

0 Downloads

Omics score: 0

Computerized Tomographic Colonography Compared With Standard Diagnostic Procedures in Detecting Colorectal Neoplasia

ABSTRACT: RATIONALE: New diagnostic procedures such as computed tomographic colonography may provide a less invasive method of identifying patients who have colorectal neoplasia. PURPOSE: Diagnostic study to compare the effectiveness of computerized tomographic colonography with that of standard diagnostic procedures in detecting colorectal neoplasia.

DISEASE(S): Colon Cancer,Colorectal Cancer,Colorectal Neoplasms

PROVIDER: 2004885 | ecrin-mdr-crc |

REPOSITORIES: ECRIN MDR

ACCESS DATA

Json Xml

Similar Datasets

Comparison of Barium Enema, Computed Tomographic Colonography, and Colonoscopy in Detecting Colon Cancer

Project description:RATIONALE: Screening tests may help doctors detect cancer cells early and plan more effective treatment for cancer. New diagnostic procedures such as computed tomographic colonography may provide a less invasive method of identifying patients who have colon cancer. PURPOSE: Diagnostic and screening trial to compare the effectiveness of barium enema, computed tomographic colonography, and colonoscopy in detecting of colon cancer.

| 2006161 | ecrin-mdr-crc

The National CT Colonography Trial

Project description:RATIONALE: New diagnostic procedures such as computed tomographic colonography may improve the ability to detect colorectal cancer and may provide a less invasive method of detection. PURPOSE: This clinical trial is studying how well computed tomographic colonography works in screening healthy participants for colorectal cancer.

| 2010946 | ecrin-mdr-crc

Colon Capsule Endoscopy (CCE) Versus Computed Tomographic Colonography (CTC) in the Identification of Colonic Polyps in a Screening Population.

Project description:The primary objective of this multicenter, prospective, randomized study is to assess the diagnostic yield of Colon Capsule Endoscopy (CCE) versus Computed Tomographic Colonography (CTC) in a screening population.

| 2213802 | ecrin-mdr-crc

Japanese National Computed Tomographic (CT) Colonography Trial

Project description:The purpose of this study is to evaluate the sensitivity of computed tomographic colonography (CTC) in detecting colorectal polyps and cancers in 1,500 subjects at increased risk of colorectal cancer (CRC), using optical colonoscopy as the reference standard.

| 2079586 | ecrin-mdr-crc

Non-cathartic Computed Tomographic Colonography to Screen Subjects With a Family History of Colorectal Cancer

Project description:Background: Although subjects with first-degree relatives (FDR) with a history of colorectal cancer (CRC) are at increased risk for CRC, compliance to screening colonoscopy is suboptimal. Computed tomographic colonography (CTC) has been recognized as an alternative for CRC screening in average risk subjects, but less information is available on its performance in FDRs. Aims: To prospectively assess the accuracy of CTC as a screening tool in FDRs using colonoscopy (OC) with segmental unblinding as reference standard. Methods: Consecutive patients admitted with CRC diagnosis (index case, IC) were prospectively evaluated. Following the systematic identification of ICs with inherited predispositions to CRC, ICs who agreed to contact their FDRs ≥40 years old were included. Available FDRs were invited to undergo non-cathartic CTC, with OC the following day. Sensitivity/specificity/PPV/NPV of CTC was assessed for detecting subjects with any lesion ≥6 mm, ≥10 mm, and for advanced neoplasia ≥6 mm.

| 2138149 | ecrin-mdr-crc

Robustness of gene expression signatures in leukemia: comparison of three distinct total RNA preparation procedures.

2007-05-31 | GSE7757 | GEO

Multi-scale characterizations of colon polyps via computed tomographic colonography.

Project description:Texture features have played an essential role in the field of medical imaging for computer-aided diagnosis. The gray-level co-occurrence matrix (GLCM)-based texture descriptor has emerged to become one of the most successful feature sets for these applications. This study aims to increase the potential of these features by introducing multi-scale analysis into the construction of GLCM texture descriptor. In this study, we first introduce a new parameter - stride, to explore the definition of GLCM. Then we propose three multi-scaling GLCM models according to its three parameters, (1) learning model by multiple displacements, (2) learning model by multiple strides (LMS), and (3) learning model by multiple angles. These models increase the texture information by introducing more texture patterns and mitigate direction sparsity and dense sampling problems presented in the traditional Haralick model. To further analyze the three parameters, we test the three models by performing classification on a dataset of 63 large polyp masses obtained from computed tomography colonoscopy consisting of 32 adenocarcinomas and 31 benign adenomas. Finally, the proposed methods are compared to several typical GLCM-texture descriptors and one deep learning model. LMS obtains the highest performance and enhances the prediction power to 0.9450 with standard deviation 0.0285 by area under the curve of receiver operating characteristics score which is a significant improvement.

| S-EPMC7099560 | biostudies-literature

Screening for Colorectal Cancer With FOBT, Virtual Colonoscopy and Optical Colonoscopy. A Randomized Clinical Trial in the Florence District

Project description:RATIONALE: Computed tomographic colonography (CTC) has proven to be accurate in detecting colorectal neoplasms and may be a primary test in colorectal cancer screening. PURPOSE: This clinical trial will compare participation rate, diagnostic yield and costs of computed tomographic colonography, faecal occult blood test (FOBT) and colonoscopy (CO) as a primary screening test in a population-based programme.

| 2129368 | ecrin-mdr-crc

Transcription profiling of leukemia samples prepared using different RNA isolation procedures

Project description:Microarray gene expression (MAGE) signatures allow insights into the transcriptional processes of leukemias and may evolve as a molecular diagnostic test. Introduction of MAGE into clinical practice of leukemia diagnosis will require comprehensive assessment of variation due to the methodologies. For the first time, we present a study focused on analyzing the impact of different RNA preparation procedures on gene expression data for different subtypes of pediatric acute leukemias. Experiment Overall Design: We systematically assessed the impact of three different total RNA isolation procedures on variation in expression data: method A: lysis of mononuclear cells, followed by lysate homogenization and RNA extraction; method B: organic solvent based RNA isolation, and method C: organic solvent based RNA isolation followed by purification.

2008-11-06 | E-GEOD-7757 | biostudies-arrayexpress

Cost-effectiveness of computerized tomographic colonography versus colonoscopy for colorectal cancer screening.

Project description:BackgroundComputerized tomographic (CT) colonography is a potential alternative to colonoscopy for colorectal cancer screening. Its main advantage, a better safety profile, may be offset by its limitations: lower sensitivity, need for colonoscopy in cases where results are positive, and expense.MethodsWe performed an economic evaluation, using decision analysis, to compare CT colonography with colonoscopy for colorectal cancer screening in patients over 50 years of age. Three-year outcomes included number of colonoscopies, perforations and adenomas removed; deaths from perforation and from colorectal cancer from missed adenomas; and direct health care costs. The expected prevalence of adenomas, test performance characteristics of CT colonography and colonoscopy, and probability of colonoscopy complications and cancer from missed adenomas were derived from the literature. Costs were determined in detail locally.ResultsUsing the base-case assumptions, a strategy of CT colonography for colorectal cancer screening would cost 2.27 million dollars extra per 100,000 patients screened; 3.78 perforation-related deaths would be avoided, but 4.11 extra deaths would occur from missed adenomas. Because screening with CT colonography would cost more and result in more deaths overall compared with colonoscopy, the latter remained the dominant strategy. Our results were sensitive to CT colonography's test performance characteristics, the malignant risk of missed adenomas, the risk of perforation and related death, the procedural costs and differences in screening adherence.InterpretationAt present, CT colonography cannot be recommended as a primary means of population-based colorectal cancer screening in Canada.

| S-EPMC1247700 | biostudies-literature

OmicsDI is part of the ELIXIR infrastructure

OmicsDI is an Elixir interoperability service. Learn more ›

Tweets

OmicsDI Databases

PRIDE
PeptideAtlas
MassIVE
JPOST Repository
Physiome Model Repository

EGA
EVA
ENA
LINCS
PAXDB
Cell Collective

MetaboLights
Metabolomics Workbench
MetabolomeExpress
GNPS
BioModels
FAIRDOMHub

ArrayExpress
dbGaP
ExpressionAtlas
GEO
NODE

Information

Databases
Help
API
Contact us
Code on GitHub
Terms of use
Submit Data