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KMID : 1103720140700050335
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Journal of the Korean Society of Radiology
2014 Volume.70 No. 5 p.335 ~ p.342
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Hepatic Angiographic Findings of Ruptured Hepatocellular Carcinoma: "Sentinel Signs" versus Extravasation
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Yun Seong-Jong
Nam Deok-Ho
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Abstract
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Purpose: This study retrospectively compared the accuracy of angiographic sentinel signs (sentinel vessels, hypovascular areas, and delayed dots) with extravasation in the diagnosis of ruptured hepatocellular carcinoma (HCC).
Materials and Methods: Sixteen patients diagnosed with HCC between March 2007 and November 2011 were evaluated. Among the patients, we identified 32 HCCs (19 ruptured, 13 unruptured), and assessed all HCCs by hepatic angiography with regard to extravasation, sentinel vessels, hypovascular areas, and delayed dots. We compared the sensitivity and specificity of the sentinel signs with those of the extravasation for the diagnosis of a ruptured HCC.
Results: For the angiographic diagnosis of a ruptured HCC, the sensitivity of the sentinel signs (sentinel vessel, 63.2%; hypovascular area, 89.5%; delayed dot, 72.7%) was higher than the sensitivity of extravasation (15.8%). The difference in sensitivity between each sentinel sign and extravasation was statistically significant (sentinel vessel, p = 0.012; hypovascular area, p < 0.001; delayed dot, p = 0.039). The specificity of sentinel signs for the diagnosis of ruptured HCC was not statistically different from the specificity of extravasation.
Conclusion: Sentinel signs are more accurate than extravasation for the angiographic diagnosis of a ruptured HCC.
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KEYWORD
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Angiography, Hepatocellular Carcinoma, Spontaneous Rupture, Extravasation of Contrast Media, Therapeutic Embolization
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