Diffusion Weighted Imaging in Vascular Pathology
Cytotoxic edema is seen within minutes to hours on diffusion weighted images (DWI) with sensitivity and specificity of 88 to 100% and 86 to 100%, respectively. Cortical watershed infarcts are…
Brain Edema: Pathophysiology
Several forms of edema have been identified under the larger rubric of “brain edema.” These generally fall into the cellular or extracellular forms. Cellular edema denotes cytotoxic edema (CE). Extracellular…
Supratentorial White Matter Tracts and Their Organization
Eloquent brain function emerges from the coordinated activity of multiple cortical and subcortical brain regions; the white matter defines a supporting network for the efficient transfer of information of these…
Diffusion Weighted and Diffusion Tensor Imaging in Aging
Diffusion based imaging strategies is sensitive to more subtle age-related changes in white matter integrity, and these methods may enable the differentiation of normal adult aging from mild cognitive impairment…
Diffusion Weighted Imaging in Hemorrhage
The pattern of evolving hematomas on conventional magnetic resonance imaging (MRI) is well documented but remains somewhat complex, and its interpretation is further complicated by diffusion weighted imaging (DWI). T2…
Diffusion Weighted Imaging and Diffusion Tensor Imaging of White Matter Diseases In Children
Physics In diffusion imaging, directional diffusion gradients are applied to a T2-weighted (spin-echo) echo-planar imaging (EPI) sequence before and after a 180-degree refocusing pulse. Water protons moving freely through these…
Diffusion Weighted Imaging and Diffusion Tensor Imaging in Spine and Spinal Cord Diseases
Diffusion weighted imaging (DWI) is the method of choice for the detection of spinal cord infarction. Diffusion tensor imaging (DTI) can be helpful for differentiating ependymoma from astrocytoma in adults….
Future Applications of Diffusion Weighted Imaging: Diffusional Kurtosis and Other Nongaussian Diffusion Techniques
Related posts: Diffusion Weighted Imaging in the Evaluation of Brain Tumors Diffusion Weighted and Diffusion Tensor Imaging in Aging Supratentorial White Matter Tracts and Their Organization Diffusion Weighted Imaging and…
Diffusion Weighted Imaging and Diffusion Tensor Imaging of the Brain during Early Brain Development: The First Two Years of Life
Temporal maturation of the major white matter tracts follows a nonlinear pattern, with the most significant growth during the first year of life, followed by a slower pace in the…
Diffusion Weighted Imaging in the Evaluation of Brain Tumors
Diffusion weighted imaging is an important tool for evaluating brain tumors and can be used for diagnosis, follow-up, and determining the prognosis. Apparent diffusion coefficients (ADCs) are inversely correlated with…
