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Related Experiment Videos

Gallbladder wall thickening: MR imaging and pathologic correlation with emphasis on layered pattern.

S E Jung1, J M Lee, K Lee

  • 1Department of Radiology, St Mary's Hospital, The Catholic University of Korea, #62, Yeouido-dong, Youngdeungpo-gu, Seoul, 150-713, South Korea. sejung@catholic.ac.kr

European Radiology
|November 27, 2004
PubMed
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Magnetic resonance (MR) imaging effectively correlates gallbladder wall thickening patterns with histopathology. This diagnostic tool accurately identifies conditions like chronic cholecystitis, acute cholecystitis, adenomyomatosis, and gallbladder cancer.

Area of Science:

  • Radiology
  • Gastroenterology
  • Pathology

Background:

  • Gallbladder wall thickening is a common finding in various gallbladder diseases.
  • Accurate diagnosis is crucial for appropriate patient management.
  • Magnetic resonance (MR) imaging offers detailed visualization of gallbladder pathology.

Purpose of the Study:

  • To correlate MR imaging findings of gallbladder wall thickening with histopathologic results.
  • To evaluate the diagnostic value of MR imaging in differentiating gallbladder diseases based on wall layering patterns.
  • To establish a classification system for MR-identified gallbladder wall thickening patterns.

Main Methods:

  • Retrospective evaluation of HASTE sequence MR cholangiography images from 144 patients with gallbladder wall thickening.

Related Experiment Videos

  • Classification of gallbladder wall thickening into four distinct layered patterns (Type 1-4) based on signal intensity and morphology.
  • Correlation of MR imaging patterns with histopathologic diagnoses.

    • Main Results:

    • A strong correlation was found between MR imaging layered patterns and histopathologic findings.
    • Type 1 pattern correlated with chronic cholecystitis, Type 2 with acute cholecystitis, Type 3 with adenomyomatosis, and Type 4 with gallbladder carcinoma.
    • All four patterns demonstrated high diagnostic performance: positive predictive value (PPV) ≥73%, sensitivity ≥92%, and specificity ≥95%.

    Conclusions:

    • MR imaging findings of gallbladder wall thickening, particularly the layered pattern, are characteristic of specific gallbladder diseases.
    • The proposed classification system for layered patterns enhances the diagnostic value of MR imaging in gallbladder disease.
    • MR imaging is a valuable tool for differentiating gallbladder pathologies based on wall thickening characteristics.