Cerebral vasculitis is a serious complication of meningitis with Streptococcus pneumoniae. We report a 5 yr old girl who was admitted in May 2015 at Fortis Hospital, Kolkata, India and was diagnosed to have pneumococcal meningitis with vasculitis on DWMRI within a week of onset of fever. She was given high dose of methyl-prednisolone simultaneously with antibiotics and successfully treated with...

To the Editor: We read with great interest the article by Kim et al, published in the January issue of Inflammatory Bowel Diseases. The study design, excluding most of colonic segments (transverse, descending, and sigmoid colons) and operated patients from their statistical analysis, led difficult to draw any conclusion regarding the role of diffusion-weighted magnetic resonance imaging (DW-MRI...

To the Editor: We read with great interest the article by Kim et al, published in the January issue of Inflammatory Bowel Diseases. The study design, excluding most of colonic segments (transverse, descending, and sigmoid colons) and operated patients from their statistical analysis, led difficult to draw any conclusion regarding the role of diffusion-weighted magnetic resonance imaging (DW-MRI...

BACKGROUND In modern cancer medicine, morphological magnetic resonance imaging (MRI) is routinely used in diagnostics, treatment planning and assessment of therapeutic efficacy. During the past decade, functional imaging techniques like diffusion-weighted (DW) MRI and dynamic contrast-enhanced (DCE) MRI have increasingly been included into imaging protocols, allowing extraction of intratumoral ...

Registration of Diffusion-Weighted MR Images (DW-MRI) can be achieved by registering the corresponding 2nd-order Diffusion Tensor Images (DTI). However, it has been shown that higher-order diffusion tensors (e.g. order-4) outperform the traditional DTI in approximating complex fiber structures such as fiber crossings. In this paper we present a novel method for unbiased group-wise non-rigid reg...

By measuring the anisotropic self-diffusion rates of water, Diffusion Weighted Magnetic Resonance Imaging (DW-MRI) provides a unique noninvasive probe of fibrous tissue. In particular, it has been explored widely for imaging nerve fiber tracts in the human brain. Geometric features provide a quick visual overview of the complex datasets that arise from DW-MRI. At the same time, they build a bri...

Concepts from Information Theory have been used quite widely in Image Processing, Computer Vision and Medical Image Analysis for several decades now. Most widely used concepts are that of KL-divergence, minimum description length (MDL), etc. These concepts have been popularly employed for image registration, segmentation, classification etc. In this chapter we review several methods, mostly dev...

In recent years, the use of diffusion weighted MRI (DW-MRI) has increased for the diagnosis of focal liver lesions (FLLs). DW-MRI may help in the differentiation of benign and malignant FLLs by measuring the apparent diffusion coefficient (ADC) values. Unfortunately, liver metastases present different histopathologic features with variable MRI signals within each lesion; this histologic variabi...