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Related Concept Videos

Endoscopic Procedures II: Colonoscopy01:25

Endoscopic Procedures II: Colonoscopy

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The colon, or large intestine, is the final segment of the digestive system. Its primary functions include absorbing water and vitamins produced by gut bacteria and transforming waste from liquid to solid to form stool. In adults, the large intestine is approximately 5 feet long and consists of four main sections:
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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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Endoscopic Procedures IV: Sigmoidoscopy and Laproscopy01:26

Endoscopic Procedures IV: Sigmoidoscopy and Laproscopy

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Sigmoidoscopy and laparoscopy are distinct medical procedures that enable physicians to internally inspect different parts of the GI tract. Although they serve different purposes, each is essential for diagnosing and, in some cases, treating various medical conditions.
Sigmoidoscopy
Sigmoidoscopy is a diagnostic procedure that uses a flexible sigmoidoscope equipped with a light source and camera to examine the rectum and sigmoid colon. The procedure involves inserting the tube through the anus...
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Imaging Studies for Cardiovascular System VI: Calcium -Scoring CT01:25

Imaging Studies for Cardiovascular System VI: Calcium -Scoring CT

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Calcium-Scoring CT ScanA calcium-scoring CT scan, also known as coronary artery calcium (CAC) scan, detects calcium deposits in the coronary arteries. This test assesses the risk of coronary artery disease (CAD), which can lead to cardiovascular events such as angina, heart failure, and sudden cardiac arrest.A calcium-scoring CT scan is generally recommended for individuals at intermediate risk of CAD without symptoms. It includes:Men aged 40-75 and women aged 50-75: Especially those with a...
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Endoscopic Procedures III: Video Capsule Endoscopy01:28

Endoscopic Procedures III: Video Capsule Endoscopy

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Capsule endoscopy, or wireless or video capsule endoscopy, is a diagnostic procedure for examining the entire gastrointestinal tract. Patients swallow a capsule about the size of a vitamin tablet. The capsule is equipped with a transmitter, a battery, an LED light source, and a color video camera to capture images throughout the gastrointestinal tract. This procedure is particularly useful for diagnosing conditions such as Crohn's disease, ulcerative colitis, tumors, polyps, ulcers,...
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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...
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Related Experiment Video

Updated: Mar 7, 2026

Structured Approach to Colonoscopy Technique Optimization: A Single-Center Experience with Novice Endoscopists
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Structured Approach to Colonoscopy Technique Optimization: A Single-Center Experience with Novice Endoscopists

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Cost-Effectiveness of Colonoscopy for Screening: What Matters Most?

Fumiaki Ishibashi1, Sho Suzuki1

  • 1Department of Gastroenterology, International University of Health and Welfare Ichikawa Hospital, Ichikawa, Japan.

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Colorectal cancer (CRC) screening using colonoscopy may be more effective than fecal immunochemical testing (FIT), but cost-effectiveness and participation rates require further study for public health implementation.

Keywords:
ColonoscopyColorectal neoplasmsCost-effectiveness analysisScreening

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Area of Science:

  • Oncology
  • Public Health
  • Health Economics

Background:

  • Colorectal cancer (CRC) is a major global cause of cancer mortality.
  • Fecal immunochemical testing (FIT) is the primary screening method but has limitations.
  • Primary colonoscopy screening is being explored as a more effective alternative.

Purpose of the Study:

  • To evaluate the effectiveness and cost-effectiveness of colonoscopy screening programs.
  • To address limitations of current CRC screening strategies.
  • To inform public health policy regarding colonoscopy screening implementation.

Main Methods:

  • Review of 11 simulation studies comparing colonoscopy screening with alternatives.
  • Analysis of studies modeling the adenoma-carcinoma sequence and interval cancers.
  • Assessment of cost-effectiveness and potential impact on healthcare resources.

Main Results:

  • Six of eleven simulation studies found colonoscopy screening more cost-effective than alternatives.
  • Five of seven studies on repeat colonoscopies showed favorable cost-effectiveness.
  • Limitations in modeling the adenoma-carcinoma sequence and interval cancers were noted.

Conclusions:

  • Colonoscopy screening shows promise for improving CRC detection and potentially cost-effectiveness.
  • Further research is needed to optimize participation rates and assess healthcare resource impact.
  • Cost-effectiveness analysis is crucial for implementing colonoscopy screening in public health.