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Thumnail 117-123.pdf 922 KB
Authors
Keywords
computed tomography
contrast enhancement
iron colloid
hepatocellular carcinoma
magnetic resonance imaging
Abstract
To determine the usefulness of chondroitin sulfate iron colloid (CSIC)-enhanced magnetic resonance imaging (MRI) in evaluation of the histologic grade of hepatocellular carcinoma (HCC), we performed a comparative study with computed tomography during arterial portography (CTAP) and CT arteriography. Twenty-one surgically resected HCCs 3 cm or less in diameter were examined. There were five well- differentiated, six well- to moderately-differentiated and ten moderately- or poorly-differentiated HCCs. T2-weighted spin echo images (repetition time: 2,000 ms, echo time: 90 ms) were taken before and after intravenous injection of 23.6 ?mol Fe/kg of CSIC. The differences between precontrast and postcontrast contrast-to-noise ratios (enhancement index) was correlated with the findings of CTAP, CT arteriography and histological examination. The enhancement index increased with statistical significance as the intranodular arterial perfusion increased (P < 0.01), and as the intranodular portal perfusion decreased (P < 0.01). Though the enhancement index tended to increase as the grade of malignancy increased, no statistical significance was found. CSIC-enhanced MRI allowed a noninvasive evaluation of the intranodular reticuloendothelial function. We consider this procedure as a supplementary method for evaluation of the histologic grade of HCC prior to performing invasive procedures such as angiography and biopsy.
Publisher
Tottori University Faculty of Medicine
Content Type
Journal Article
ISSN・ISBN
1346-8049
NCID
AA00892882
Journal Title
Yonago Acta medica
Current Journal Title
Yonago Acta medica
Volume
40
Issue
2
Start Page
117
End Page
123
Published Date
1997-07
Text Version
Publisher
Rights
Yonago Acta medica 編集委員会
Citation
Yonago Acta medica. 1997, 40(2), 117-123
Department
Faculty of Medicine/Graduate School of Medical Sciences/University Hospital
Language
English