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Related Concept Videos

Cholecystitis01:20

Cholecystitis

Cholecystitis is inflammation of the gallbladder, most commonly caused by obstruction of the cystic duct. This blockage prevents bile from draining, leading to gallbladder distension, inflammation, and potentially serious complications. This condition may present acutely or chronically and can happen with or without gallstones.EtiologyAbout 95% of cholecystitis cases are calculous, caused by gallstones blocking the cystic duct, leading to bile accumulation and inflammation of the gallbladder...
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...
Imaging Studies III: Gastrointestinal Motility Studies and Virtual Colonoscopy01:26

Imaging Studies III: Gastrointestinal Motility Studies and Virtual Colonoscopy

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 solid...

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Related Experiment Video

Updated: Jun 27, 2026

The Role of Indocyanine Green Fluorescence in Complex Laparoscopic Cholecystectomy Navigation
03:27

The Role of Indocyanine Green Fluorescence in Complex Laparoscopic Cholecystectomy Navigation

Published on: January 31, 2025

Pre-operative predictive factors for gallbladder cholesterol polyps using conventional diagnostic imaging.

Ji-Hoon Choi1, Jung-Won Yun, Yong-Sung Kim

  • 1Department of Internal Medicine, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul 110-746, South Korea.

World Journal of Gastroenterology
|December 6, 2008
PubMed
Summary

Ultrasound (US) and computed tomography (CT) can help differentiate gallbladder polyps. Cholesterol polyps may be seen on US but not CT, with size discrepancies between imaging methods.

Related Experiment Videos

Last Updated: Jun 27, 2026

The Role of Indocyanine Green Fluorescence in Complex Laparoscopic Cholecystectomy Navigation
03:27

The Role of Indocyanine Green Fluorescence in Complex Laparoscopic Cholecystectomy Navigation

Published on: January 31, 2025

Area of Science:

  • Gastroenterology
  • Radiology
  • Pathology

Background:

  • Gallbladder (GB) polyps are common findings during abdominal imaging.
  • Differentiating benign cholesterol polyps from potentially malignant GB polyps is clinically important.
  • Radiological methods like US and CT are often used for initial polyp assessment.

Purpose of the Study:

  • To identify clinical data aiding differentiation between benign and malignant gallbladder polyps.
  • To compare the diagnostic utility of abdominal ultrasonography (US) and computed tomography (CT) scanning against postoperative pathology.
  • To establish radiological indicators for distinguishing cholesterol polyps.

Main Methods:

  • A cohort of 59 patients with gallbladder polyps (around 10 mm) underwent laparoscopic cholecystectomy.
  • Patients were categorized into cholesterol and non-cholesterol polyp groups.
  • Clinical data, including polyp size, number, symptoms, and imaging measurements (US and CT), were analyzed and compared with pathology findings.

Main Results:

  • Cholesterol polyps were detected by US in 36.6% of cases not seen on CT, while all non-cholesterol polyps were detected by both modalities.
  • CT scans measured smaller maximum polyp diameters than US for cholesterol polyps, resulting in greater measurement discrepancies.
  • Both US and CT demonstrated low accuracy in predicting polyp diameter compared to postoperative pathological measurements.

Conclusions:

  • Specific radiological findings suggest a cholesterol polyp: visibility on US but not CT, smaller diameter on CT than US, and significant US-CT measurement discrepancies.
  • These imaging techniques have limitations in accurately determining polyp size compared to definitive pathological analysis.
  • Further investigation may be needed to refine imaging criteria for gallbladder polyp characterization.