MRI Findings of Lipiodol Uptake in Hepatocellular Carcinomas: A Focus on Signal Intensity.
10.12771/emj.2016.39.4.110
- Author:
Myung Jae LEE
1
;
Min Jeong KIM
;
Seung Yon BAEK
Author Information
1. Department of Radiology, Ewha Womans University School of Medicine, Seoul, Korea. bbaek@ewha.ac.kr
- Publication Type:Original Article
- Keywords:
Hepatocellular carcinoma;
Magnetic resonance imaging;
Transarterial chemoembolization;
Signal intensity;
Lipiodol
- MeSH:
Carcinoma, Hepatocellular*;
Ethiodized Oil*;
Magnetic Resonance Imaging*;
Retrospective Studies
- From:The Ewha Medical Journal
2016;39(4):110-117
- CountryRepublic of Korea
- Language:English
-
Abstract:
OBJECTIVES: To evaluate MRI findings of non-recurrent hepatocellular carcinomas with lipiodol uptake (LHCCs) treated with transarterial chemoembolization. METHODS: 28 LHCCs were divided into two groups according to amount of lipiodol uptake and tumor size, retrospectively. According to amount of lipiodol uptake, HCCs were classified into group A with dense lipiodol uptake (more than 90%) and group B with partial lipiodol uptake (between 50% and 90%). For HCC size analysis, group I was defined by a longest diameter of less than 2 cm, and group II was defined by a longest diameter of greater than or equal to 2 cm. RESULTS: In group A (n=16), eight LHCCs showed high signal intensity (SI) on T2-weighted images (T2WI), ten LHCCs showed low SI on T1-weighted imaged (T1WI), six LHCCs showed decreased SI at higher b value of diffusion-weighted images (DWI). In group B (n=12), six LHCCs revealed high SI on T2WI, six LHCCs revealed low SI on T1WI, ten LHCCs decreased SI at higher b value of DWI. As compared with tumor size and SI, six of 12 LHCCs in group I and eight of 16 LHCCs in group II showed high SI on T2WI. Six LHCCs in group I and ten LHCCs in group II showed low SI on T1WI. All LHCCs were not enhanced. CONCLUSION: Signal intensities of LHCCs were variable, but more than half of LHCCs showed high SI on T2WI, low SI on T1WI, decreased SI at higher b value of DWI, regardless of lipiodol uptake or tumor size.
