发明授权
US09031635B2 MRI diffusion weighted imaging with estimated motion probing gradient b-factors based on acquired apparent diffusion coefficients for each pixel
有权
基于每个像素获得的表观扩散系数的估计运动探测梯度b因子的MRI扩散加权成像
- 专利标题： MRI diffusion weighted imaging with estimated motion probing gradient b-factors based on acquired apparent diffusion coefficients for each pixel
- 专利标题（中）： 基于每个像素获得的表观扩散系数的估计运动探测梯度b因子的MRI扩散加权成像
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申请号： US14243268申请日： 2014-04-02
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公开(公告)号： US09031635B2公开(公告)日： 2015-05-12
- 发明人: Satoshi Sugiura , Tokunori Kimura , Mitsukazu Kamata
- 申请人： Kabushiki Kaisha Toshiba , Toshiba Medical Systems Corporation
- 申请人地址： JP Minato-Ku, Tokyo JP Otawara-Shi, Tochigi
- 专利权人： Kabushiki Kaisha Toshiba,Toshiba Medical Systems Corporation
- 当前专利权人： Kabushiki Kaisha Toshiba,Toshiba Medical Systems Corporation
- 当前专利权人地址： JP Minato-Ku, Tokyo JP Otawara-Shi, Tochigi
- 代理机构： Nixon & Vanderhye P.C.
- 优先权： JP2008-251683 20080929; JP2009-167866 20090716
- 主分类号： A61B5/05
- IPC分类号： A61B5/05 ; G01R33/56 ; A61B5/055 ; G01R33/563 ; G06T11/00 ; A61B5/00 ; G01R33/54
摘要：
A magnetic resonance diagnostic apparatus includes a derivation unit to derive an apparent diffusion coefficient regarding a pixel position for each pixel position included in a region of interest in at least two original images obtained by imaging a same imaging region of a same subject using at least two b-factors that are different from each other, respectively, based on pixel values of each of at least two original images regarding the pixel positions, and a first estimation unit to estimate a pixel value obtained by using a b-factor that is different from the at least two b-factors, regarding each pixel position included in the region of interest, based on the apparent diffusion coefficient derived for each pixel position.
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