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Related Concept Videos

Ultrasound II: Endoscopic Ultrasound and FibroScan01:25

Ultrasound II: Endoscopic Ultrasound and FibroScan

Endoscopic Ultrasound (EUS) and FibroScan are valuable diagnostic tools in gastroenterology and hepatology, each with specific applications and techniques.
Endoscopic Ultrasound (EUS):
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 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...
Urologic Endoscopic Procedure: Cystoscopic Examination01:28

Urologic Endoscopic Procedure: Cystoscopic Examination

Meaning of Cystoscopic Examination:Cystoscopy is an essential diagnostic tool in urology that is used to assess the structure and function of the genitourinary system. It provides a direct view of the urethra, bladder, and, in some cases, the ureteral openings. This procedure helps detect structural abnormalities, infections, cancers, and blockages in the urinary tract. There are two types of cystoscopy:Flexible cystoscopy is commonly performed in outpatient settings due to its less invasive...
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:
Imaging Studies for Cardiovascular System II:Types of Echocardiography01:20

Imaging Studies for Cardiovascular System II:Types of Echocardiography

Echocardiography plays a role in assessing cardiac health and detecting heart conditions, with various types providing critical insights for diagnosis and treatment.
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Related Experiment Video

Updated: Jun 5, 2026

Using the Endoscope for Endobronchial Ultrasound in the Esophagus
04:35

Using the Endoscope for Endobronchial Ultrasound in the Esophagus

Published on: November 21, 2023

Contrast-enhanced endoscopic ultrasonography.

Nischita K Reddy1, Ana Maria Ioncică, Adrian Săftoiu

  • 1Department of Medicine, University of Texas Medical Branch, Galveston, TX 77555-0144, United States.

World Journal of Gastroenterology
|January 11, 2011
PubMed
Summary
This summary is machine-generated.

Contrast agents enhance imaging for gastrointestinal endoscopy, improving diagnosis of benign versus malignant conditions. These agents aid in staging cancers and guiding treatments, particularly in endoscopic ultrasonography.

Keywords:
Contrast mediaDoppler ultrasonographyEndoscopic ultrasonographyGastrointestinal neoplasmsPancreatic cancer

Related Experiment Videos

Last Updated: Jun 5, 2026

Using the Endoscope for Endobronchial Ultrasound in the Esophagus
04:35

Using the Endoscope for Endobronchial Ultrasound in the Esophagus

Published on: November 21, 2023

Area of Science:

  • Gastroenterology
  • Medical Imaging
  • Oncology

Background:

  • Contrast agents are crucial for characterizing organ vasculature.
  • They help differentiate benign from malignant pathologies and guide therapeutic procedures.
  • Their use is expanding in various endoscopic interventions.

Purpose of the Study:

  • To review contrast agent mechanisms and applications in gastrointestinal endoscopy.
  • To highlight their role in endoscopic ultrasonography for various conditions.
  • To discuss future potential in advanced imaging and therapy.

Main Methods:

  • Review of first, second, and third generation contrast agents.
  • Analysis of applications in endoscopic ultrasonography (EUS).
  • Discussion of Doppler and harmonic imaging techniques with contrast agents.

Main Results:

  • Contrast-enhanced EUS aids in differentiating mediastinal lymphadenopathy and assessing cancer invasion depth.
  • Visualization of portal venous system and esophageal varices is improved.
  • Pancreatic lesion differentiation and tumor neovascularization assessment are enhanced.

Conclusions:

  • Contrast agents significantly improve diagnostic accuracy in gastrointestinal endoscopy.
  • Advanced techniques like contrast-enhanced harmonic imaging offer detailed microperfusion insights.
  • Future applications include perfusion quantification, antiangiogenic therapy monitoring, and molecular imaging.