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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...

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Preliminary Study on Optimizing the Malignant Risk Stratification Model of Gallbladder Polyps Based on CEUS

Jianfei Chen1, Zhidan Geng2, Congyu Tang3

  • 1Department of Ultrasound, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China; Department of Ultrasound, Zhongshan Hospital of Fudan University, Shanghai, China.

Ultrasound in Medicine & Biology
|February 28, 2026
PubMed
Summary

Contrast-enhanced ultrasound (CEUS) significantly enhances the accuracy of gallbladder polyp (GBP) malignancy risk assessment. Integrating CEUS features into ultrasound models improves diagnostic performance for better clinical application.

Keywords:
Contrast-enhanced ultrasoundConventional ultrasoundGallbladder cancerGallbladder polypNeoplastic polypRisk stratification

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Area of Science:

  • Medical Imaging
  • Gastroenterology
  • Oncology

Background:

  • Gallbladder polyps (GBPs) require accurate risk stratification for malignancy.
  • Conventional ultrasound (US) has limitations in differentiating benign from malignant GBPs.
  • Contrast-enhanced ultrasound (CEUS) offers enhanced visualization of tissue perfusion.

Purpose of the Study:

  • To evaluate if CEUS features improve the diagnostic performance of US-based malignant risk stratification models for GBPs.
  • To compare the efficacy of conventional US, simplified CEUS, and multiparametric CEUS models.
  • To assess the clinical utility of CEUS in GBP evaluation.

Main Methods:

  • Prospective enrollment of 300 patients with GBPs undergoing surgery.
  • Pre-operative conventional US and CEUS examinations.
  • Development of a simplified CEUS model and a multiparametric CEUS model incorporating perfusion characteristics.
  • Comparison of diagnostic efficacy against surgical pathology as the gold standard.

Main Results:

  • Eight CEUS indicators showed excellent inter-observer consistency.
  • The multiparametric CEUS model demonstrated superior diagnostic performance compared to US and simplified CEUS models.
  • Area under the ROC curve values for differentiating benign vs. malignant polyps were 0.893 (US), 0.974 (simplified CEUS), and 0.983 (multiparametric CEUS).

Conclusions:

  • Incorporating CEUS features significantly enhances the diagnostic efficacy of malignant risk stratification for GBPs.
  • The multiparametric CEUS model offers high clinical value for GBP evaluation.
  • CEUS is a valuable tool that warrants widespread clinical application for gallbladder polyp assessment.