公开(公告)号：US09523753B2

公开(公告)日：2016-12-20

申请号：US14112267

申请日：2012-04-13

申请人： Jinnan Wang ,  Michael Günter Helle ,  William Sean Kerwin ,  Peter Boernert ,  Chun Yuan

发明人： Jinnan Wang ,  Michael Günter Helle ,  William Sean Kerwin ,  Peter Boernert ,  Chun Yuan

IPC分类号： G01V3/00 ,  G01R33/563 ,  G01R33/56

CPC分类号： G01R33/5635 ,  G01R33/5602

摘要： Magnetic resonance (MR) spins are inverted by applying an inversion recovery (IR) radio frequency pulse (50). MR signals are acquired at an inversion time (TI) after the IR radio frequency pulse. TI is selected such that a first tissue of interest (e.g., blood) exhibits negative magnetism excited by the IR radio frequency pulse and a second tissue (e.g., intraplaque hemorrhage tissue) exhibits positive magnetism excited by the IR radio frequency pulse. The acquired magnetic resonance signals are reconstructed to generate spatial pixels or voxels wherein positive pixel or voxel values indicate spatial locations of positive magnetism and negative pixel or voxel values indicates spatial locations of negative magnetism. A first image (28) representative of the first tissue is generated from spatial pixels or voxels having negative signal intensities, and a second image (26) representative of the second tissue is generated from spatial pixels or voxels having positive signal intensities.

摘要翻译： 通过应用反转恢复（IR）射频脉冲（50）来反转磁共振（MR）自旋。 在IR射频脉冲之后，在反转时间（TI）获取MR信号。 选择TI，使得感兴趣的第一组织（例如血液）表现出由IR射频脉冲激发的负磁性，并且第二组织（例如，intraplaque出血组织）表现出由IR射频脉冲激发的正磁性。 所获取的磁共振信号被重建以产生空间像素或像素，其中正像素或体元值表示正磁性的空间位置，负像素或体素值表示负磁性的空间位置。 从具有负信号强度的空间像素或体素生成代表第一组织的第一图像（28），并且从具有正信号强度的空间像素或体素生成代表第二组织的第二图像（26）。

公开(公告)号：US20140043021A1

公开(公告)日：2014-02-13

申请号：US14112267

申请日：2012-04-13

申请人： Jinnan Wang ,  Michael Günter Helle ,  William Sean Kerwin ,  Peter Boernert ,  Chun Yuan

发明人： Jinnan Wang ,  Michael Günter Helle ,  William Sean Kerwin ,  Peter Boernert ,  Chun Yuan

IPC分类号： G01R33/563

CPC分类号： G01R33/5635 ,  G01R33/5602

摘要： Magnetic resonance (MR) spins are inverted by applying an inversion recovery (IR) radio frequency pulse (50). MR signals are acquired at an inversion time (TI) after the IR radio frequency pulse. TI is selected such that a first tissue of interest (e.g., blood) exhibits negative magnetism excited by the IR radio frequency pulse and a second tissue (e.g., intraplaque hemorrhage tissue) exhibits positive magnetism excited by the IR radio frequency pulse. The acquired magnetic resonance signals are reconstructed to generate spatial pixels or voxels wherein positive pixel or voxel values indicate spatial locations of positive magnetism and negative pixel or voxel values indicates spatial locations of negative magnetism. A first image (28) representative of the first tissue is generated from spatial pixels or voxels having negative signal intensities, and a second image (26) representative of the second tissue is generated from spatial pixels or voxels having positive signal intensities.

摘要翻译： 通过应用反转恢复（IR）射频脉冲（50）来反转磁共振（MR）自旋。 在IR射频脉冲之后，在反转时间（TI）获取MR信号。 选择TI，使得感兴趣的第一组织（例如血液）表现出由IR射频脉冲激发的负磁性，并且第二组织（例如，intraplaque出血组织）表现出由IR射频脉冲激发的正磁性。 所获取的磁共振信号被重建以产生空间像素或像素，其中正像素或体元值表示正磁性的空间位置，负像素或体素值表示负磁性的空间位置。 从具有负信号强度的空间像素或体素产生代表第一组织的第一图像（28），并且从具有正信号强度的空间像素或体素产生代表第二组织的第二图像（26）。