公开(公告)号：US20120184843A1

公开(公告)日：2012-07-19

申请号：US13007357

申请日：2011-01-14

申请人： Yi-Hsuan Kao ,  Mu-Huo Teng ,  Wen-Yan Zheng ,  Yu-Fen Chen

发明人： Yi-Hsuan Kao ,  Mu-Huo Teng ,  Wen-Yan Zheng ,  Yu-Fen Chen

IPC分类号： A61B5/055 ,  G06K9/00

CPC分类号： A61B5/055 ,  A61B5/0042 ,  A61B5/0263 ,  A61B5/4064 ,  A61B5/7264 ,  G06T7/0016 ,  G06T7/11 ,  G06T7/136 ,  G06T7/174 ,  G06T2207/10096 ,  G06T2207/20076 ,  G06T2207/20224 ,  G06T2207/30016

摘要： The present invention discloses a method and apparatus for brain perfusion magnetic resonance imaging (MRI) technique with the removal of cerebrospinal fluid (CSF) pixels. This invention utilizes a CSF/brain-contrast-enhanced image, wherein the CSF/brain-contrast-enhanced image is defined as the signal difference between CSF and brain matter divided by a standard deviation of air background random noise is larger than 3, acquired from the subject's brain, and applies a segmentation technique to remove the CSF pixels. After removing the CSF pixels on parametric images, the extent of brain tissue with delayed perfusion can be better identified. By using a good region of interest enclosing the correct delayed-perfusion region, the measurement on the tissue volume and perfusion parameters would be more accurate than the area contaminated by CSF pixels.

摘要翻译： 本发明公开了脑灌注磁共振成像（MRI）技术与去除脑脊液（CSF）像素的方法和装置。 本发明利用CSF /脑对比度增强图像，其中CSF /脑对比度增强图像被定义为CSF与脑部之间的信号差除以空气背景随机噪声的标准偏差大于3，获得 从受试者的脑部，并应用分割技术去除CSF像素。 在去除参数图像上的CSF像素后，可以更好地识别具有延迟灌注的脑组织的程度。 通过使用包围正确的延迟灌注区域的良好感兴趣区域，组织体积和灌注参数的测量将比被CSF像素污染的区域更准确。

公开(公告)号：US08427151B2

公开(公告)日：2013-04-23

申请号：US13007357

申请日：2011-01-14

申请人： Yi-Hsuan Kao ,  Mu-Huo Teng ,  Wen-Yan Zheng ,  Yu-Fen Chen

发明人： Yi-Hsuan Kao ,  Mu-Huo Teng ,  Wen-Yan Zheng ,  Yu-Fen Chen

IPC分类号： G01V3/00

CPC分类号： A61B5/055 ,  A61B5/0042 ,  A61B5/0263 ,  A61B5/4064 ,  A61B5/7264 ,  G06T7/0016 ,  G06T7/11 ,  G06T7/136 ,  G06T7/174 ,  G06T2207/10096 ,  G06T2207/20076 ,  G06T2207/20224 ,  G06T2207/30016

摘要： The present invention discloses a method and apparatus for brain perfusion magnetic resonance imaging (MRI) technique with the removal of cerebrospinal fluid (CSF) pixels. This invention utilizes a CSF/brain-contrast-enhanced image, wherein the CSF/brain-contrast-enhanced image is defined as the signal difference between CSF and brain matter divided by a standard deviation of air background random noise is larger than 3, acquired from the subject's brain, and applies a segmentation technique to remove the CSF pixels. After removing the CSF pixels on parametric images, the extent of brain tissue with delayed perfusion can be better identified. By using a good region of interest enclosing the correct delayed-perfusion region, the measurement on the tissue volume and perfusion parameters would be more accurate than the area contaminated by CSF pixels.

摘要翻译： 本发明公开了脑灌注磁共振成像（MRI）技术与去除脑脊液（CSF）像素的方法和装置。 本发明利用CSF /脑对比度增强图像，其中CSF /脑对比度增强图像被定义为CSF与脑部之间的信号差除以空气背景随机噪声的标准偏差大于3，获得 从受试者的脑部，并应用分割技术去除CSF像素。 在去除参数图像上的CSF像素后，可以更好地识别具有延迟灌注的脑组织的程度。 通过使用包围正确的延迟灌注区域的良好感兴趣区域，组织体积和灌注参数的测量将比被CSF像素污染的区域更准确。