6533b825fe1ef96bd128284b

RESEARCH PRODUCT

Focal liver lesions hyperintense on T1-weighted magnetic resonance images.

Roberto LagallaKyongtae T. BaeDaniele MarinDaniele MarinGiuseppe BrancatelliGiuseppe BrancatelliAlessandro FurlanAlessandro FurlanFrancesco AgnelloMassimo Bazzocchi

subject

medicine.medical_specialtymedicine.diagnostic_testbusiness.industryLiver DiseasesContrast MediaMagnetic resonance imagingMagnetic Resonance ImagingHyperintensityLesionDiagnosis DifferentialImaging Three-DimensionalmedicineT1 weightedHumansRadiology Nuclear Medicine and imagingRadiologySignal intensityMr imagesmedicine.symptombusinessNuclear medicine

description

This article reviews focal liver lesions hyperintense on T1-weighted magnetic resonance (MR) images and describes the underlying etiologies associated with their T1 signal intensity. Although focal liver lesions are commonly detected because of their iso- or hypointensity on T1-weighted images, lesions (benign or malignant) may present with T1 hyperintensity when they contain T1 shortening elements--such as fat, hemorrhage, copper, melanin, and highly concentrated proteins. Our discussion includes the description of state-of-the-art T1-weighted MR sequences and the imaging features of lesions on pre- and postcontrast MR images that are characteristic for lesion composition and useful for making accurate diagnosis.

10.1053/j.sult.2009.07.002https://pubmed.ncbi.nlm.nih.gov/19842568