Purpose: The aim of this study was to assess the role diffusion-weighted imaging (DWI) and conventional magnetic resonance (MRI) in differentiation benign malignant orbital lesions. 
 Materials Methods: 43 patients (27 women 16 men; mean age: 26.3±28.5) with lesions were assessed MRI DWI. apparent diffusion coefficient (ADC) measured, maximum ADC (ADCmax), (ADCmean), minimum (ADCmin), rati...

BACKGROUND It has recently been suggested that diffusion and perfusion MRI can identify subgroups likely to benefit or potentially be harmed by reperfusion therapies. CASE REPORT We investigated serial MRI data of two patients with occlusion of the proximal middle cerebral artery (MCA). In both cases, acute multiple cortical infarcts evident on diffusion-weighted imaging (DWI) and perfusion-w...

In this paper, we present an affine image coregistration technique for Diffusion Tensor Magnetic Resonance Imaging (DT-MRI) data sets based on mutual information. The technique is based on a multichannel approach where the diffusion weighted images are aligned according to the corresponding acquisition gradient directions. Also, in addition to the coregistration of the DT-MRI data sets, an appr...

Diffusion-weighted magnetic resonance (MR) signals reflect information about underlying tissue microstructure and cytoarchitecture. We propose a quantitative, efficient, and robust mathematical and physical framework for representing diffusion-weighted MR imaging (MRI) data obtained in "q-space," and the corresponding "mean apparent propagator (MAP)" describing molecular displacements in "r-spa...

AD Axial diffusivity ADC Apparent diffusion coefficient ADHD Attention deficit hyperactivity disorder BET Brain extraction tool CSF Cerebrospinal fluid DKI Diffusion kurtosis imaging DTI Diffusion tensor imaging DWI Diffusion-weighted imaging FA Fractional anisotropy MD Trace, mean diffusivity MRI Magnetic resonance imaging RD Radial diffusivity ROI Region of interest TBSS Tract-based spatial s...

Purpose: to explore DSDE-TFE for in vivo high resolution, undistorted DWI and ADC calculation. Background: Diffusion weighted MRI is commonly performed using a single shot spin echo EPI acquisition. EPI techniques, however, are very sensitive to B0 inhomogeneities due to susceptibility differences. This causes geometrical distortions.Because of the high sensitivity to motion, DW-EPI is mostly c...

The current evidence regarding the usefulness of whole-body diffusion-weighted magnetic resonance imaging (diffusion MRI) in the assessment of lymphoma is reviewed. Diffusion MRI combining both anatomical and bio-physiological information is currently under investigation as a valuable tool in the oncology field including lymphoma, not only for staging but also for the assessment of response. Re...