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Efficient mapping of reconstruction algorithms for magnetic resonance imaging onto a reconfigurable reconstruction system

机译:磁共振成像重建算法到可重构重建系统的高效映射

摘要

A magnetic resonance (MR) system (10) includes radiofrequency (R) transmitters (34) which send RF pulses into an examination region (14) to excite a spin system to be imaged. Coil elements (20, 24, 28) pick up an MR signal, which is demodulated and converted into digital data by RF receivers (36). A plurality of independent parallel processing channels (421, 422, . . . , 42a) is operatively connected to the RF receivers to reconstruct images from the digital data. The parallel processing channels (421, 422, . . . , 42n) include one or more pipeline stages (541, 542, . . . , 54m). Processing channels and pipeline stages include a plurality of processing or reconstruction units (52). Processing tasks are dynamically allocated to these processing or reconstruction units on a per scan basis using a single general strategy for mapping processing tasks to hardware resources. The connections (56) between the processing or reconstruction units (52) are reconfigured using a switching means (60). In this manner, different numbers of coil elements (20, 24, 28) can be connected with matching numbers of processing channels (421, 422, . . . , 42n) to exploit available processing resources optimally.
机译:磁共振(MR)系统( 10 )包括射频(R)发射机( 34 ),这些发射机将RF脉冲发送到检查区域( 14 )以激发要成像的自旋系统。线圈元件( 20、24、28 )拾取MR信号,该信号被RF接收器( 36 )解调并转换为数字数据。多个独立的并行处理通道( 42 1 ,42 2 ,...,42 a )可操作地连接到RF接收器,以从数字数据中重建图像。并行处理通道( 42 1 ,42 2 ,...,42 n )包括一个或多个管道阶段( 54 1 ,54 2 ,...,54 m )。处理通道和流水线级包括多个处理或重建单元( 52 )。使用用于将处理任务映射到硬件资源的单个通用策略,在每次扫描的基础上将处理任务动态分配给这些处理或重建单元。使用切换装置( 60 )重新配置处理或重建单元( 52 )之间的连接( 56 )。这样,可以将不同数量的线圈元件( 20、24、28 )与匹配数量的处理通道( 42 1 < B>,42 2 ,...,42 n )来最佳地利用可用的处理资源。

著录项

  • 公开/公告号US2006238195A1

    专利类型

  • 公开/公告日2006-10-26

    原文格式PDF

  • 申请/专利权人 INGMAR GRAESSLIN;HOLGER EGGERS;

    申请/专利号US20040565289

  • 发明设计人 INGMAR GRAESSLIN;HOLGER EGGERS;

    申请日2004-07-16

  • 分类号G01V3/00;A61B5/05;

  • 国家 US

  • 入库时间 2022-08-21 21:47:13

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