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KMID : 0616619990050020357
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Journal of Soonchunhyang Medical College
1999 Volume.5 No. 2 p.357 ~ p.365
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Hepatic Hemangioma: Relation of Internal Echo and Enhancement Patterns on Three Phase Spiral CT Imaging
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Abstract
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Purpose: To evaluate the relation of internal echo and enhancement patterns on three phase spiral CT in hepatic hemangioma.
Methods: This retrospective study included 41 cases in 34 patients who were diagnosed as hepatic hemangioma who had ultrasonography and three phase spiral CT scan. We classified hepatic hemangioma as two different groups according to the findings of internal echo on ultrasonography. Three phase spiral CT images were obtained at 30 seconds(arterial phase), 60 seconds( portal phase), and 3-5minutes(delayed phase) after the initiation of injection of contrast materials(120ml, 2.7ml/sec). Enhancement patterns of hemangiomas during three phases were classified as total high attenuation, peripheral high attenuation, low attenuation, or iso attenuation.
Results : The most common enhancement pattern of hemangioma on three phase spiral CT was peripheral high attenuation in whole three phases in both high and low echoic groups. There was no statistical significance(P>0.1). Total high attenuation in whole three phases on three phase spiral CT is 3 cases(3/13, 23%) in low echoic group and 1 case(1/28, 4%) in high echoic group. It is statistically significant(P<0.1).
Conclusion: The enhancement patterns on three phase spiral CT is different between low and high echoic group. Total high attenuation in whole three phases on three phase spiral CT is more in low echoic group than in high echoic group.
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