发明授权
US08076939B2 Method for fast magnetic resonance radiofrequency coil transmission profile mapping
有权
方法用于快速磁共振射频线圈传输配置文件映射
- 专利标题: Method for fast magnetic resonance radiofrequency coil transmission profile mapping
- 专利标题(中): 方法用于快速磁共振射频线圈传输配置文件映射
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申请号: US12422017申请日: 2009-04-10
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公开(公告)号: US08076939B2公开(公告)日: 2011-12-13
- 发明人: Kawin Setsompop , Elfar Adalsteinsson , Vijayanand Alagappan , Lawrence Wald
- 申请人: Kawin Setsompop , Elfar Adalsteinsson , Vijayanand Alagappan , Lawrence Wald
- 申请人地址: US MA Boston
- 专利权人: The General Hospital Corporation
- 当前专利权人: The General Hospital Corporation
- 当前专利权人地址: US MA Boston
- 代理机构: Quarles & Brady LLP
- 主分类号: G01V3/00
- IPC分类号: G01V3/00
摘要:
A system and method for producing an image indicative of characteristics of a radiofrequency (“RF”) coil with a magnetic resonance imaging (“MRI”) system is disclosed. The method includes acquiring MR signals while performing a pulse sequence with the MRI system and driving the RF coil at a selected transmission power. This process is repeated a plurality of times to drive the RF coil at a different transmission powers during each repetition. A plurality of images are reconstructed from the acquired MR signals and an image indicative of RF reception characteristics of the RF coil is produced from the reconstructed images. Subsequently, an image indicative of RF transmission characteristics of the RF coil is produced using the image indicative of the RF receiver response. More specifically, only one data acquisition is necessary for each RF coil element to produce the image indicative of the RF transmission characteristics for that coil element.
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