发明名称 |
MR imaging with B1 mapping |
摘要 |
The invention relates to a method of MR imaging, wherein a portion of a body placed in the examination volume of a MR device is subjected to an imaging sequence of RF pulses and switched magnetic field gradients. The imaging sequence is a stimulated echo sequence including i) two preparation RF pulses (±) radiated toward the portion of the body during a preparation period (21), and ii) reading RF pulses (²) radiated toward the portion of the body during an acquisition period (22) temporally subsequent to the preparation period (21). FID signals (I 1 ) and stimulated echo signals (I 2 ) are acquired during the acquisition period (22). A B 1 map indicating the spatial distribution of the RF field of the RF pulses within the portion of the body is derived from the acquired FID (I 1 ) and stimulated echo (I 2 ) signals. |
申请公布号 |
EP2615470(A1) |
申请公布日期 |
2013.07.17 |
申请号 |
EP20120150929 |
申请日期 |
2012.01.12 |
申请人 |
KONINKLIJKE PHILIPS ELECTRONICS N.V.;PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH |
发明人 |
BOERNERT, PETER;NEHRKE, KAY |
分类号 |
G01R33/24 |
主分类号 |
G01R33/24 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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