Open AccessContrast Agents for Hepatic Magnetic Resonance Imaging
Author(s) -
Giovanni Morana,
Luigi Grazioli,
Marco Testoni,
Paolo Caccia,
Carlo Procacci
Publication year - 2002
Publication title -
topics in magnetic resonance imaging
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 0.547
H-Index - 53
eISSN - 1536-1004
pISSN - 0899-3459
DOI - 10.1097/00002142-200206000-00002
Subject(s) - magnetic resonance imaging , contrast (vision) , dynamic contrast , lesion , nuclear magnetic resonance , pathology , radiology , medicine , computer science , physics , artificial intelligence
The current availability of liver-specific contrast media (LSCM) allows the possibility to obtain an accurate diagnosis when studying focal liver lesions (FLL). It is necessary to have an in-depth knowledge of the biologic and histologic characteristics of FLL and the enhancement mechanism of LSCM to gain significant accuracy in the differential diagnosis of FLL. It is possible to subdivide FLL into three main groups according to the kinetics of contrast enhancement: hypervascular FLL, hypovascular FLL, and FLL with delayed enhancement. Dynamic contrast-enhanced magnetic resonance imaging is an important tool in the identification and characterization of FLL. LSCM with a first phase of extracellular distribution give both dynamic (morphologic) and late phase (functional) information useful for lesion characterization. With LSCM it is possible to differentiate with high accuracy benign from malignant lesions and hepatocellular from nonhepatocellular lesions. To understand contrast behavior after injection of LSCM, it is necessary to correlate contrast enhancement with the biologic and histologic findings of FLL.