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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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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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Endoscopic Procedures III: Video Capsule Endoscopy01:28

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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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Endoscopic Procedures V: ERCP01:26

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Endoscopic Retrograde Cholangiopancreatography (ERCP) is a diagnostic procedure that combines endoscopy and fluoroscopy to diagnose and treat conditions related to the bile ducts, pancreatic ducts, and gallbladder. This procedure is beneficial for identifying and addressing blockages, gallstones, strictures, and tumors within the biliary or pancreatic systems. ERCP is both diagnostic and therapeutic, offering the ability to visualize and treat identified problems in one session.
Patient...
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Endoscopic Procedures I: Esophagogastroduodenoscopy01:29

Endoscopic Procedures I: Esophagogastroduodenoscopy

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An Esophagogastroduodenoscopy (EGD) is a diagnostic procedure in which an endoscopist uses a flexible, lighted endoscope to visualize the upper gastrointestinal (GI) tract. The procedure includes visualizing the oropharynx, esophagus, stomach, and the first part of the small intestine, the duodenum.
During an EGD, the endoscope can be used to:
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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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Related Experiment Video

Updated: Mar 18, 2026

Endoscopic Approach for Colloid Cyst Resection
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Endoscopic Approach for Colloid Cyst Resection

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Endoscopic Instruments and Electrosurgical Unit for Colonoscopic Polypectomy.

Hong Jun Park1

  • 1Department of Internal Medicine, Yonsei University Wonju College of Medicine, Wonju, Korea.

Clinical Endoscopy
|July 12, 2016
PubMed
Summary
This summary is machine-generated.

Effective colorectal cancer prevention relies on colorectal polypectomy using specialized endoscopic instruments. Understanding instrument characteristics and proper use ensures successful polyp removal.

Keywords:
Colonoscopic polypectomyElectrosurgical generation unitInstrumentationSnareSurgical instruments

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Use of the Scissor-Type Knife During the Peroral Endoscopy Myotomy Procedure for the Treatment of Achalasia
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Use of the Scissor-Type Knife During the Peroral Endoscopy Myotomy Procedure for the Treatment of Achalasia
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Area of Science:

  • Gastroenterology
  • Endoscopic Surgery

Background:

  • Colorectal polypectomy is crucial for preventing colorectal cancer.
  • Various endoscopic instruments are available for polyp removal.

Purpose of the Study:

  • To review endoscopic instruments for colorectal polypectomy.
  • To guide endoscopists on appropriate instrument selection and use based on polyp characteristics.
  • To explain electrosurgery generator unit (ESU) principles and settings.

Main Methods:

  • Literature review of endoscopic instruments.
  • Analysis of instrument characteristics and applications.
  • Discussion of electrosurgery generator unit (ESU) principles.

Main Results:

  • Detailed characteristics of snares, forceps, clips, Coagrasper, retrieval nets, and injectors are presented.
  • Guidance on matching instruments to polyp morphology and size is provided.
  • Key principles and settings for electrosurgery generator unit (ESU) are outlined.

Conclusions:

  • Proper selection and utilization of endoscopic instruments are vital for effective colorectal polypectomy.
  • Understanding instrument-polyp interactions enhances procedural success and cancer prevention.
  • Knowledge of electrosurgery generator unit (ESU) facilitates optimal performance.