公开(公告)号：US07577472B2

公开(公告)日：2009-08-18

申请号：US11375347

申请日：2006-03-14

Applicant: Shi-Jiang Li ,  Yin Xu ,  Guofan Xu ,  Gaohong Wu

Inventor： Shi-Jiang Li ,  Yin Xu ,  Guofan Xu ,  Gaohong Wu

IPC: A61B5/05

CPC classification number: A61B5/055 ,  A61B5/4088 ,  Y10S128/922

Abstract: Time course MRI data is acquired from the hippocampal region of the brain and processed to produce two indices that are a measure of the functional connectivity between locations therein. The MRI data is acquired while the brain is substantially at rest and the spontaneous low frequency component of the time course data at each location in the hippocampus is extracted and compared in a cross-correlation process. Also acquired is fMRI data which indicates those locations in the brain that should be included in the index calculations.

Abstract translation: 时间过程MRI数据是从大脑的海马区域获得的，并被处理以产生两个指标，这两个指标是其中位置之间的功能连通性的度量。 在大脑基本静止时获取MRI数据，并且在互相关过程中提取海马每个位置处的时间过程数据的自发低频分量并进行比较。 还获得了fMRI数据，其指示应该包括在指数计算中的大脑中的这些位置。

公开(公告)号：US20120274322A1

公开(公告)日：2012-11-01

申请号：US13095424

申请日：2011-04-27

Applicant: Sangwoo Lee ,  Gaohong Wu

Inventor： Sangwoo Lee ,  Gaohong Wu

IPC: G01R33/44

CPC classification number: G01R33/5607

Abstract: A magnetic resonance imaging apparatus that carries out a pulse sequence for making a signal of a first substance within an object smaller than a signal of a second substance within the object. The pulse sequence includes an α°-pulse for exciting the object, a refocus pulse for refocusing a phase of spin within a region excited by the α°-pulse, and a readout gradient field for acquiring a magnetic resonance signal from the region. The α°-pulse has a spectral selectivity such that a transverse magnetization of the first substance is made smaller than a transverse magnetization of the second substance. The refocus pulse has a spectral selectivity such that a phase of spin of the second substance is refocused and refocusing of a phase of spin of the first substance is suppressed.

Abstract translation: 一种磁共振成像装置，其执行用于使物体内的第一物质的信号小于物体内的第二物质的信号的脉冲序列。 脉冲序列包括用于激发对象的α°脉冲，用于重新聚焦由α°脉冲激发的区域内的自旋相位的再聚焦脉冲，以及用于从该区域获取磁共振信号的读出梯度场。 α°脉冲具有光谱选择性，使得第一物质的横向磁化小于第二物质的横向磁化强度。 再聚焦脉冲具有光谱选择性，使得第二物质的自旋相被重新聚焦，并且抑制第一物质的自旋相的重新聚焦。

公开(公告)号：US20060241382A1

公开(公告)日：2006-10-26

申请号：US11375347

申请日：2006-03-14

Applicant: Shi-Jiang Li ,  Yin Xu ,  Guofan Xu ,  Gaohong Wu

Inventor： Shi-Jiang Li ,  Yin Xu ,  Guofan Xu ,  Gaohong Wu

IPC: A61B5/05

CPC classification number: A61B5/055 ,  A61B5/4088 ,  Y10S128/922

Abstract: Time course MRI data is acquired from the hippocampal region of the brain and processed to produce two indices that are a measure of the functional connectivity between locations therein. The MRI data is acquired while the brain is substantially at rest and the spontaneous low frequency component of the time course data at each location in the hippocampus is extracted and compared in a cross-correlation process. Also acquired is fMRI data which indicates those locations in the brain that should be included in the index calculations.