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Related Concept Videos

Endoscopic Procedures V: ERCP01:26

Endoscopic Procedures V: ERCP

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...
Endoscopic Procedures I: Esophagogastroduodenoscopy01:29

Endoscopic Procedures I: Esophagogastroduodenoscopy

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:
Endoscopic Procedures IV: Sigmoidoscopy and Laproscopy01:26

Endoscopic Procedures IV: Sigmoidoscopy and Laproscopy

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...
Endoscopic Procedures III: Video Capsule Endoscopy01:28

Endoscopic Procedures III: Video Capsule Endoscopy

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, unexplained...
Endoscopic Studies I: Bronchoscopy and Thoracoscopy01:30

Endoscopic Studies I: Bronchoscopy and Thoracoscopy

Endoscopy is a non-surgical medical technique used to examine a person's internal organs and vessels. This lesson will focus on two types of endoscopic studies: bronchoscopy and thoracoscopy.
Bronchoscopy
Description
Bronchoscopy is a procedure that involves direct visualization of the larynx, trachea, and bronchi for diagnostic and therapeutic purposes. A flexible fiber optic or rigid bronchoscope is used to carry out the procedure. The fiber-optic bronchoscope is more frequently used due to...
Endoscopic Procedures II: Colonoscopy01:25

Endoscopic Procedures II: Colonoscopy

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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Related Experiment Video

Updated: May 30, 2026

A Two-Step Method for Percutaneous Transhepatic Choledochoscopic Lithotomy
03:56

A Two-Step Method for Percutaneous Transhepatic Choledochoscopic Lithotomy

Published on: September 13, 2022

Per-oral cholangioscopy.

Amitabh Monga1, Mohan Ramchandani, D Nageshwar Reddy

  • 1Asian Institute of Gastroenterology, Hyderabad, India.

Journal of Interventional Gastroenterology
|July 22, 2011
PubMed
Summary
This summary is machine-generated.

Per-oral cholangioscopy offers advanced visualization of bile ducts, improving diagnosis and treatment. New technologies promise to revolutionize its use in gastroenterology and hepatology.

Related Experiment Videos

Last Updated: May 30, 2026

A Two-Step Method for Percutaneous Transhepatic Choledochoscopic Lithotomy
03:56

A Two-Step Method for Percutaneous Transhepatic Choledochoscopic Lithotomy

Published on: September 13, 2022

Area of Science:

  • Gastroenterology and Hepatology
  • Endoscopic Imaging
  • Biliary Tract Interventions

Background:

  • Direct endoscopic visualization of the bile duct has evolved significantly since the 1970s.
  • Technological advancements have led to improved image quality and maneuverability in cholangioscopy.

Purpose of the Study:

  • To provide an overview of current per-oral cholangioscopy equipment.
  • To discuss the existing and potential future indications for cholangioscopy.
  • To explore future directions in the field of cholangioscopy.

Main Methods:

  • Review of current per-oral cholangioscopy systems.
  • Discussion of established and emerging clinical applications.
  • Analysis of technological innovations like single-operator semi-disposable scopes and access balloons.

Main Results:

  • Modern cholangioscopy systems offer enhanced visualization and control.
  • Current applications include characterizing indeterminate biliary strictures and managing large bile duct stones.
  • Novel devices are poised to expand the utility of cholangioscopy.

Conclusions:

  • Per-oral cholangioscopy is a rapidly advancing field with significant potential.
  • Technological innovations are expected to broaden its diagnostic and therapeutic applications.
  • The future of cholangioscopy includes expanded indications in biliary tract interventions.