WebApr 14, 2006 · The cyst contents showed high intensity on DWI (Fig. 1 ). The apparent diffusion coefficient (ADC) of the cyst was 1.262±0.137×10 −3 mm 2 /s. A post-operative pituitary abscess was strongly suspected and trans-sphenoidal surgery was performed again. The cyst was filled with yellowish-white thick creamy pus (Fig. 2 ). WebOct 20, 2024 · High signal intensity in DWI is the most sensitive sequence for detecting the infarct focus of acute ischaemic stroke, also known as the “stroke sequence“. Therefore, the identification of high-signal regions in DWI is helpful for the treatment of ischaemic stroke patients. Woo et al ...
MR Imaging Features of the Cerebellum in Adult-Onset …
Diffusion-weighted imaging (DWI) is a form of MR imaging based upon measuring the random Brownian motion of water molecules within a voxel of tissue. In general simplified terms, highly cellular tissues or those with cellular swelling exhibit lower diffusion coefficients. See more A great deal of confusion exists in the way the clinicians and radiologists refer to diffusion restriction, with both groups often appearing to not actually understand what they are referring to. The first problem is that the term … See more As opposed to essentially free diffusion of water kept inside a container, diffusion of water inside brain tissue, for example, is hindered primarily by cell membrane boundaries. The … See more A variety of techniques for generating diffusion maps have been developed. By far the most commonly used technique relies on a spin-echo echo-planar sequence (SE-EPI) although non-EPI techniques (e.g. … See more Diffusion-weighted imaging has a major role in the following clinical situations 3-5: 1. early identification of ischemic stroke 2. differentiation of acute from chronic stroke 3. differentiation of acute stroke from other stroke mimics 4. … See more canada classes of fires
A comparative analysis of diffusion-weighted imaging and …
WebOct 1, 2024 · In infectious encephalitis, such as viral encephalitis, DWI shows high sensitivity, ... The prevalence of the DWI hyper signal intensity has been reported in up to 85% of patients with status epilepticus . Posterior cerebral regions (parieto-occipital), hippocampi, and pulvinar regions are the most common locations with DWI hyper signal ... WebOct 11, 2024 · DWI hyperintensity tends to show an anterior-to-posterior propagation pattern as the disease progresses. The rare cases of its disappearance may lead to misdiagnosis. Here, we reported a NIID patient with mitochondrial encephalomyopathy, lactic acidosis and stroke-like (MELAS-like) episode, and reversible DWI hyperintensities. WebJun 30, 2013 · Initial DWI showed diffuse hyperintensity in the right thalamus, which raised the possibility of seizure-related change. At the follow-up DWI, more localized high signal intensity lesion was present in the right pulvinar area. There was no apparent cause of her NCSE despite our extensive work-ups. The authors suggest that transient ischemia is ... fishel park 1036 grove st