By Moritani T., Ekholm S., Westesson P.-L.
Diffusion-weighted MR imaging is generally authorized as a way to spot stroke, therefore permitting fast and powerful therapy. over the last 4 years, those professional authors have provided over 30 shows and medical stories on diffusion-weighted imaging on the RSNA and the yank Society of Neuroradiology (ASNR), and greater than 10 of those displays were well-known via particular awards. Diffusion-Weighted MR Imaging of the Brain’s chapters variety from easy ideas to interpretation of diffusion-weighted MR imaging and particular affliction. it is a useful reference for radiologists, neurologists, neurosurgeons in addition to citizens, fellows, radiology technologists.
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About the Authors
Dr. Da Cheng Hao is an affiliate Professor and precept investigator on the institution of surroundings and Chemical Engineering, dependent on the Biotechnology Institute, Dalian Jiaotong college, Dalian, P. R China. he's a visitor Prof. of Institute of Medicinal Plant improvement (IMPLAD), chinese language Academy of scientific Sciences (CAMS), Beijing, P. R China.
Dr. Xiao Jie Gu is a Lecturer on the university of setting and Chemical Engineering, dependent on the Biotechnology Institute, Dalian Jiaotong collage, Dalian, P. R China.
Professor Pei Gen Xiao is an Academician of chinese language Academy of Engineering and the pinnacle of Key Laboratory of Bioactive ingredients and assets usage of chinese language natural drugs, Ministry of schooling, dependent at IMPLAD, CAMS, Beijing, P. R China.
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Additional resources for Diffusion-Weighted MR Imaging of the Brain
Similar mechanisms also cause cytotoxic edema in the astrocyte with cytotoxic edema of various diseases, including infarction, hypoxic ischemic encephalopathy, status epilepticus, and traumatic brain injury, such as diffuse axonal injury, contusion and shaken baby syndrome [6, 7]. Increased extracellular glutamate is a direct cause of excitotoxic brain injury. In acute excitotoxic injury, increased extracellular glutamate results from an increased release/ leakage of glutamate or a decreased re-uptake (Fig.
Liu AY, Maldjian JA, Bagley LJ, Sinson GP, et al. (1999) Traumatic brain injury: diffusion-weighted MR imaging ﬁndings. AJNR Am J Neuroradiol 20:1636–1641 Brain Edema 21. Kim JA, Chung JI, Yoon PH, et al. (2001) Transient MR signal changes in patients with generalized tonicoclonic seizure or status epilepticus: periictal diffusion-weighted imaging. AJNR Am J Neuroradiol 22:1149–1160 22. Men S, Lee DH, Barron JR, et al. (2000) Selective neuronal necrosis associated with status epilepticus; MR ﬁndings.
B Gadolinium T1-weighted image with magnetization transfer contrast shows gyral enhancement in the cortical lesions, representing subacute infarcts. c DW image also shows hyperintense lesions in the right deep white matter (arrows), and gray matter of both frontal and right parieto-occipital regions (arrowheads). d The ADC map shows decreased ADC in the right deep white matter lesion (arrows), and normal or slightly increased ADC in the gray matter lesions (arrowheads). The prolonged decreased ADC in the white matter may reﬂect edema of myelin sheaths or axons Chapter 5 disruption, which results in increased amounts of extracellular water.