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Related Concept Videos

Imaging Studies III: Gastrointestinal Motility Studies and Virtual Colonoscopy01:26

Imaging Studies III: Gastrointestinal Motility Studies and Virtual Colonoscopy

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This lesson explores three gastrointestinal imaging techniques: radionuclide testing, colonic transit studies, and virtual colonoscopy.
Radionuclide Testing
Radionuclide testing is a sophisticated medical technique for assessing gastrointestinal motility. It focuses on gastric emptying and colonic transit time. Radioactive markers track the movement of food through the digestive system, providing insights into gastrointestinal disorders.
In gastric emptying studies, a meal's liquid and...
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Serum Laboratory Studies, Stool Test, Breath Test01:30

Serum Laboratory Studies, Stool Test, Breath Test

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Gastrointestinal (GI) diagnostic studies are pivotal in confirming, ruling out, diagnosing, or staging various diseases, including cancers. Following diagnosis, allocating time for discussions with the patient and providing informational resources is crucial. Diagnostic assessments of the GI tract often occur in outpatient settings like endoscopy suites or GI labs. Preparation for these tests may include dietary restrictions, fasting, liquid bowel preparations, laxatives, enemas, and the...
708

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Related Experiment Video

Updated: Jan 5, 2026

Evaluation of Colorectal Cancer Risk and Prevalence by Stool DNA Integrity Detection
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Colorectal carcinoma screening: Established methods and emerging technology.

Erika Hissong1, Meredith E Pittman1

  • 1Department of Pathology and Laboratory Medicine, Weill Cornell Medicine, New York City, NY, USA.

Critical Reviews in Clinical Laboratory Sciences
|October 12, 2019
PubMed
Summary

Colorectal cancer screening programs reduce incidence and mortality. This review covers current screening methods and future biomarkers to improve diagnosis and decrease disease burden.

Keywords:
Colorectal cancerbiomarkercolonoscopyfecal immunochemical testfecal microbiotascreening

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Area of Science:

  • Gastroenterology
  • Oncology
  • Public Health

Background:

  • Colorectal carcinoma screening effectively reduces population-level incidence and mortality.
  • Challenges remain, including low screening adherence and diagnostic inaccuracies with current methods.

Purpose of the Study:

  • To review current colorectal cancer screening modalities.
  • To introduce novel biomarkers for future screening applications.
  • To discuss epidemiologic considerations for public health screening guidelines.

Main Methods:

  • Review of existing literature on colorectal cancer screening tests.
  • Exploration of emerging biomarker research.
  • Analysis of public health data and epidemiologic trends.

Main Results:

  • Current screening includes fecal occult blood testing, direct colonic visualization, and noninvasive imaging.
  • Biomarkers show potential as standalone or adjunct screening tools.
  • Epidemiologic data is crucial for effective population screening guideline development.

Conclusions:

  • Optimizing colorectal cancer screening requires evaluating current methods and integrating new biomarkers.
  • Public health strategies must address screening adherence and diagnostic precision.
  • Laboratory data is vital for informed screening recommendations and reducing disease burden.