Vol 2: Usefulness of Diffusion-Weighted MRI for Differentiation between Parkinsons Disease and Parkinson Variant of Multiple System Atrophy.Reportar como inadecuado



 Vol 2: Usefulness of Diffusion-Weighted MRI for Differentiation between Parkinsons Disease and Parkinson Variant of Multiple System Atrophy.


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This article is from Journal of Movement Disorders, volume 2.AbstractBackground and Purpose:: Several studies have reported that diffusion-weighted imaging DWI is able to help discriminate a Parkinson variant of multiple system atrophy MSA-p from Parkinson’s disease PD on the basis of the increased regional apparent diffusion coefficient rADC. We analyzed the usefulness of DWI by using the rADC for differential diagnosis between MSA-p and PD and investigated the correlation between the rADC value and clinical features of MSA-p and PD. Methods:: Twelve patients with PD and 10 with MSA-p were studied. The rADC value was determined in different brain regions, including the dorsal putamen DP and middle cerebellar peduncles MCP. Results:: The rADC values of the DP showed a greater increase in MSA-p patients than in PD patients p=0.03. MSA-p patients also presented increased rADC values of the MCP compared with PD patients p=0.0001. In particular, the sensitivity, specificity and positive predictive values of the MCP rADC were higher than those of the DP rADC. However, DP and MCP rADC values were not correlated with clinical features in either MSA or PD patients. Conclusions:: DWI discriminated between PD and MSA-p based on rADC values in DP and MCP. The MCP rADC value, in particular, could better discriminate MSA-p from PD.



Autor: Chung, Eun Joo; Kim, Eung Gyu; Bae, Jong Seok; Eun, Choong Ki; Lee, Kwang Sig; Oh, Minkyung; Kim, Sang Jin

Fuente: https://archive.org/







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