
基本信息:
- 专利标题: 磁共振成像的方法和系统及其用途
- 申请号:CN201080021664.6 申请日:2010-04-22
- 公开(公告)号:CN102428383B 公开(公告)日:2014-10-01
- 发明人: 丹尼尔·托普加德
- 申请人: CR发展公司
- 申请人地址: 瑞典伦德
- 专利权人: CR发展公司
- 当前专利权人: 兰德姆沃克成像有限公司
- 当前专利权人地址: 瑞典奥卡普
- 代理机构: 北京安信方达知识产权代理有限公司
- 代理人: 周靖; 郑霞
- 优先权: 0950363-2 2009.05.22 SE; 61/180,752 2009.05.22 US
- 国际申请: PCT/SE2010/050448 2010.04.22
- 国际公布: WO2010/134870 EN 2010.11.25
- 进入国家日期: 2011-11-17
- 主分类号: A61B5/055
- IPC分类号: A61B5/055
The present invention refers to a method for magnetic resonance imaging or nuclear magnetic resonance spectroscopy comprising emitting a radio frequency and gradient pulse sequence towards an object being subjected to a magnetic field, wherein said object comprises a molecule having an atom with a nuclear spin differing from 0, encoding, detecting and acquiring a magnetic resonance signal from said object corresponding to said emitted radio frequency and gradient pulse sequence, wherein the radio frequency and gradient pulse sequence comprises a first weighting block, a mixing block with duration tm and a second weighting block, and wherein encoding, detecting and acquiring the magnetic resonance signal from said object is limited to initial decay of the signal intensity I with increasing strength of at least one of the first weighting block and the second weighting block, wherein the variation of the initial signal decay rate with tm is analysed to obtain the apparent exchange rate AXR.
公开/授权文献:
- CN102428383A 磁共振成像的方法和系统及其用途 公开/授权日:2012-04-25
IPC结构图谱:
A | 人类生活必需 |
--A61 | 医学或兽医学;卫生学 |
----A61B | 诊断;外科;鉴定 |
------A61B5/00 | 用于诊断目的的测量;人的辨识 |
--------A61B5/04 | .测量人体或人体各部分的生物电信号 |
----------A61B5/055 | ..包含电磁共振(EMR)或核磁共振(NMR)的,例如磁共振成像 |