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MRI of Focal Liver Lesions

[ Vol. 8 , Issue. 2 ]

Author(s):

Nils Albiin   Pages 107 - 116 ( 10 )

Abstract:


Magnetic resonance imaging, MRI has more advantages than ultrasound, computed tomography, CT, positron emission tomography, PET, or any other imaging modality in diagnosing focal hepatic masses. With a combination of basic T1 and T2 weighted sequences, diffusion weighted imaging, DWI, and hepatobiliary gadolinium contrast agents, that is gadobenate dimeglumine (Gd-BOPTA) and gadoxetic acid (Gd-EOB), most liver lesions can be adequately diagnosed. Benign lesions, as cyst, hemangioma, focal nodular hyperplasia, FNH or adenoma, can be distinguished from malignant lesions. In a non-cirrhotic liver, the most common malignant lesions are metastases which may be hypovascular or hypervascular. In the cirrhotic liver hepatocellular carcinoma, HCC, is of considerable importance. Besides, intrahepatic cholangiocarcinoma and other less common malignancies has to be assessed. In this review, the techniques and typical MRI features are presented as well as the new algorithm issued by American Association for the Study of the Liver Diseases (AASLD).

Keywords:

Diagnosis, Diffusion weighted Magnetic Resonance Imaging, Hepatocellular carcinoma, HCC, Liver metastases, Liver neoplasms, Magnetic Resonance Imaging, MRI, Radiology, Review

Affiliation:

Division of Radiology, Department of Clinical Science, Intervention and Technology (CLINTEC), Karolinska Institutet/Karolinska University Hospital, SE-14186 STOCKHOLM, Sweden.



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