Presentation 2015-03-16
Brain stroke validation from diffusion weighed image of twice-refocused spin-echo sequence
Kazuhiro NAKAMURA, Yasushi KONDOH, Toshibumi KINOSHITA,
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Abstract(in English) A typical single refocused pulsed-gradient spin-echo (SRSE-DWI) sequence is interacted by susceptibility-induced background gradient fields around vessels, while twice-refocused spin-echo (TRSE-DWI) sequence is reduced the such effect. The difference between SRSE-DWI and TRSE-DWI will indicate CBV weighted image. We evaluated the reduction ratio of apparent diffusion constant in both sequence with computer simulations in a vascular model. We made TRSE-DWI sequence for animal MRI and evaluated on stroke model rats. The simulation results indicate possible criteria for brain stroke validation. The experimental results did not show adequate S/N images.
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Keyword(in English) MRI / Diffusion weighted image / Stroke / Cerebral blood flow & metabolism
Paper # MBE2014-120,NC2014-71
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Committee NC
Conference Date 2015/3/9(1days)
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Registration To Neurocomputing (NC)
Language JPN
Title (in Japanese) (See Japanese page)
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Title (in English) Brain stroke validation from diffusion weighed image of twice-refocused spin-echo sequence
Sub Title (in English)
Keyword(1) MRI
Keyword(2) Diffusion weighted image
Keyword(3) Stroke
Keyword(4) Cerebral blood flow & metabolism
1st Author's Name Kazuhiro NAKAMURA
1st Author's Affiliation Akita Research Institute for Brain and Blood Vessels()
2nd Author's Name Yasushi KONDOH
2nd Author's Affiliation Akita Research Institute for Brain and Blood Vessels
3rd Author's Name Toshibumi KINOSHITA
3rd Author's Affiliation Akita Research Institute for Brain and Blood Vessels
Date 2015-03-16
Paper # MBE2014-120,NC2014-71
Volume (vol) vol.114
Number (no) 515
Page pp.pp.-
#Pages 4
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