An evidence-based medicine approach to studies of diagnostic tests

Assessing the validity of virtual colonoscopy

Brooks D. Cash, Philip Schoenfeld, Douglas Rex

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

This is the second in the series of articles on the application of evidence-based medicine (EBM) approaches to evaluating therapy, natural history, and diagnostic tests that are of interest to gastroenterologists and hepatologists. The article provides an EBM framework to critically assess articles that evaluate diagnostic tests: When are diagnostic tests necessary? What study design was used to appraise the comparison between the test being considered and the acceptable comparator? Did all study patients, including those in whom the diagnosis was in doubt, undergo the gold standard test? Was the frequency of indeterminate results reported? Are the data reported as likelihood ratios? This article addresses the choice of best approach to management of a 53-year-old woman who is referred for colorectal cancer surveillance. She had a 1-cm diameter adenoma snared from the colon about 3 years previously and she seeks advice on the possibility of undergoing "virtual colonoscopy" and avoiding colonoscopy because of discomfort during the prior examination. The article appraises recent literature and applies the results to the patient and practice setting to determine the optimal approach for the individual patient.

Original languageEnglish
Pages (from-to)136-144
Number of pages9
JournalClinical Gastroenterology and Hepatology
Volume1
Issue number2
DOIs
StatePublished - Mar 1 2003

Fingerprint

Computed Tomographic Colonography
Evidence-Based Medicine
Routine Diagnostic Tests
Colonoscopy
Natural History
Adenoma
Colorectal Neoplasms
Colon
Gastroenterologists
Therapeutics

ASJC Scopus subject areas

  • Gastroenterology

Cite this

An evidence-based medicine approach to studies of diagnostic tests : Assessing the validity of virtual colonoscopy. / Cash, Brooks D.; Schoenfeld, Philip; Rex, Douglas.

In: Clinical Gastroenterology and Hepatology, Vol. 1, No. 2, 01.03.2003, p. 136-144.

Research output: Contribution to journalArticle

@article{50bc9c48289a4f24a2f2d52e80153095,
title = "An evidence-based medicine approach to studies of diagnostic tests: Assessing the validity of virtual colonoscopy",
abstract = "This is the second in the series of articles on the application of evidence-based medicine (EBM) approaches to evaluating therapy, natural history, and diagnostic tests that are of interest to gastroenterologists and hepatologists. The article provides an EBM framework to critically assess articles that evaluate diagnostic tests: When are diagnostic tests necessary? What study design was used to appraise the comparison between the test being considered and the acceptable comparator? Did all study patients, including those in whom the diagnosis was in doubt, undergo the gold standard test? Was the frequency of indeterminate results reported? Are the data reported as likelihood ratios? This article addresses the choice of best approach to management of a 53-year-old woman who is referred for colorectal cancer surveillance. She had a 1-cm diameter adenoma snared from the colon about 3 years previously and she seeks advice on the possibility of undergoing {"}virtual colonoscopy{"} and avoiding colonoscopy because of discomfort during the prior examination. The article appraises recent literature and applies the results to the patient and practice setting to determine the optimal approach for the individual patient.",
author = "Cash, {Brooks D.} and Philip Schoenfeld and Douglas Rex",
year = "2003",
month = "3",
day = "1",
doi = "10.1053/cgh.2003.50021",
language = "English",
volume = "1",
pages = "136--144",
journal = "Clinical Gastroenterology and Hepatology",
issn = "1542-3565",
publisher = "W.B. Saunders Ltd",
number = "2",

}

TY - JOUR

T1 - An evidence-based medicine approach to studies of diagnostic tests

T2 - Assessing the validity of virtual colonoscopy

AU - Cash, Brooks D.

AU - Schoenfeld, Philip

AU - Rex, Douglas

PY - 2003/3/1

Y1 - 2003/3/1

N2 - This is the second in the series of articles on the application of evidence-based medicine (EBM) approaches to evaluating therapy, natural history, and diagnostic tests that are of interest to gastroenterologists and hepatologists. The article provides an EBM framework to critically assess articles that evaluate diagnostic tests: When are diagnostic tests necessary? What study design was used to appraise the comparison between the test being considered and the acceptable comparator? Did all study patients, including those in whom the diagnosis was in doubt, undergo the gold standard test? Was the frequency of indeterminate results reported? Are the data reported as likelihood ratios? This article addresses the choice of best approach to management of a 53-year-old woman who is referred for colorectal cancer surveillance. She had a 1-cm diameter adenoma snared from the colon about 3 years previously and she seeks advice on the possibility of undergoing "virtual colonoscopy" and avoiding colonoscopy because of discomfort during the prior examination. The article appraises recent literature and applies the results to the patient and practice setting to determine the optimal approach for the individual patient.

AB - This is the second in the series of articles on the application of evidence-based medicine (EBM) approaches to evaluating therapy, natural history, and diagnostic tests that are of interest to gastroenterologists and hepatologists. The article provides an EBM framework to critically assess articles that evaluate diagnostic tests: When are diagnostic tests necessary? What study design was used to appraise the comparison between the test being considered and the acceptable comparator? Did all study patients, including those in whom the diagnosis was in doubt, undergo the gold standard test? Was the frequency of indeterminate results reported? Are the data reported as likelihood ratios? This article addresses the choice of best approach to management of a 53-year-old woman who is referred for colorectal cancer surveillance. She had a 1-cm diameter adenoma snared from the colon about 3 years previously and she seeks advice on the possibility of undergoing "virtual colonoscopy" and avoiding colonoscopy because of discomfort during the prior examination. The article appraises recent literature and applies the results to the patient and practice setting to determine the optimal approach for the individual patient.

UR - http://www.scopus.com/inward/record.url?scp=0141996274&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0141996274&partnerID=8YFLogxK

U2 - 10.1053/cgh.2003.50021

DO - 10.1053/cgh.2003.50021

M3 - Article

VL - 1

SP - 136

EP - 144

JO - Clinical Gastroenterology and Hepatology

JF - Clinical Gastroenterology and Hepatology

SN - 1542-3565

IS - 2

ER -