J Korean Radiol Soc.
1994 Jan;30(1):141-148.
Dynamic MR Imaging of Hepatic Hemangioma and Hepatocellular: Findings and Differential Diagnosis
Abstract
- PURPOSE
We performed dynamic MR imaging using GdDTPA to find characteristic enhancement pattern of
hepatic hemangioma distinguishing from hepatocellular carcinoma.
METHODS
AND MATERIALS: 28 hepatic hemangiomas and 10 hepatocellular carcinomas were evaluated. Serial dynamic
scans after Gd-DTPA(0.1mmol/kg) intravenous injection were obtained by using 0.5T machine and analyzed
contrast-to-noise ratio(CNR) of the lesion and enhancement pattern on each scan.
RESULTS
Hepatic hemangiomas had positive CNR from 1-2 minute images, and revealed typical "fill-in phenomenon"
on early phase with prolonged enhancement in 26 cases(92.8%), and early homogeneous enhancement with
isointensity on delayed phase in 2 cases(7.2%) of small hemangiome~ Hepatocellular carcinomas
revealed inhomogeneous enhancement with hypointensity on delayed phase in 10 cases(100%) and 3 cases
(30%) of capsular enhancement.
CONCLUSION
Hepatic hemangioma can be easily distinguished from hepatocellular carcinoma by using Gd DTPA
enhanced dynamic MR imaging according to its typical enhancement pattern of "fill-in phenomenon" and prolonged
enhancement.