Recent studies in rodents have demonstrated that diffusion imaging is highly sensitive to differences in myelination. These studies suggest that demyelination/dysmyelination cause increases in the radial diffusivity from diffusion tensor imaging (DTI) measurements and decreases in the restricted diffusion component from high b-value diffusion-weighted imaging experiments. In this study, the sha...

Corresponding author : Woo Kyoung Jeong Department of Radiology and Center for Imaging Science, Samsung Medical Center, Sungkyunkwan University School of Medicine, 81 Irwon-ro, Gangnam-gu, Seoul 135-710, Korea Tel: +82-2-3410-1923, Fax: +82-2-3410-0049 Email: [email protected] Abbreviations: HCC, hepatocellular carcinoma;CT, computed tomography; MRI, magnetic resonance imaging; SI, signal inten...

PURPOSE We aimed to investigate the value of magnetic resonance imaging (MRI)-based parameters in differentiating between progressive massive fibrosis (PMF) and lung cancer. METHODS This retrospective study included 60 male patients (mean age, 67.0±9.0 years) with a history more than 10 years working underground coal mines who underwent 1.5 T MRI thorax due nodule/mass suspicious for cancer on ...

c Fig. 1. Serial MRI studies with FLAIR, diffusion-weighted imaging (b = 1,000 s/mm 2 ) and ADC (apparent diffusion coefficients) mapping from left to right at the delayed onset of postanoxic encephalopathy ( a ), 6 months ( b ) and 13 months ( c ). Some lesions in both frontal white matter and the anterior corpus callosum showed persistent decreased diffusivity on diffusion-weighted imaging an...

Movement artifacts and other sources of noise are a matter of concern particularly in the neuroimaging research of movement disorders such as Huntington's disease (HD). Using diffusion weighted imaging (DWI) and fractional anisotropy (FA) as a compound marker of white matter integrity, we investigated the effect of movement on HD specific changes in magnetic resonance imaging (MRI) data and how...

Diffusion-weighted magnetic resonance imaging (DW-MRI) is a novel imaging technique that reflects microscopic water diffusion using a pair of strong diffusion gradients. It was developed to map the apparent diffusion coefficient (ADC) (1). Parallel to the development of DW-MRI, there have been advances in Dynamic contrast-enhanced MRI (DCEMRI). Using the MRI signal and pharmacokinetic models, p...

Understanding the important alterations during hepatocarcinogenesis as well as the characteristic magnetic resonance imaging (MRI) and histopathological features will be helpful for managing patients with chronic liver disease and hepatocellular carcinoma. Recent advances in MRI techniques, such as fat/iron quantification, diffusion-weighted images, and gadoxetic acid-enhanced MRI, have greatly...

Movement artifacts and other sources of noise are a matter of concern particularly in the neuroimaging research of movement disorders such as Huntington’s disease (HD). Using diffusion weighted imaging (DWI) and fractional anisotropy (FA) as a compound marker of white matter integrity, we investigated the effect of movement on HD specific changes in magnetic resonance imaging (MRI) data and how...

BACKGROUND Primary Central Nervous System Lymphomas (PCNSLs) are rare, malignant brain tumors derived from lymphocytes B. Juvenile xanthogranuloma (JXG) is a non-Langerhans histiocytic cell disorder in children which mostly affects the skin. Rare fatalities have been reported in extracutaneous manifestation. Brain magnetic resonance imaging (MRI) is a method of choice in the diagnostics of all ...

The significant advances in magnetic resonance imaging (MRI) hardware and software, sequence design, and postprocessing methods have made diffusion-weighted imaging (DWI) an important part of body MRI protocols and have fueled extensive research on quantitative diffusion outside the brain, particularly in the oncologic setting. In this review, we summarize the most up-to-date information on DWI...