公开(公告)号：US09229075B2

公开(公告)日：2016-01-05

申请号：US13474909

申请日：2012-05-18

申请人： Hyug-rae Cho ,  Joon-soo Kim ,  Ju-hyung Lee ,  Young-cheol Kwon

发明人： Hyug-rae Cho ,  Joon-soo Kim ,  Ju-hyung Lee ,  Young-cheol Kwon

IPC分类号： G01V3/00 ,  G01R33/36

CPC分类号： G01R33/36 ,  G01R33/3621 ,  G01R33/3657 ,  G01R33/3692

摘要： A magnetic resonance imaging (MRI) system includes a radio frequency (RF) coil which receives timing information about a pulse sequence and stores the timing information in a memory of the RF coil. Then, when an RF excitation signal is transmitted, the RF coil performs decoupling. When a magnetic resonance (MR) echo signal is generated, the RF coil receives the MR echo signal and transmits the MR echo signal to a central controlling apparatus through a wireless channel. When a transmission error arises, the RF coil retransmits corresponding data in an idle time when the RF excitation signal is not transmitted or the MR echo signal is not generated. Thus, the RF coil is prevented from being damaged by the RF excitation signal and prevents the quality of an MR image from deteriorating compared to a synchronization-type communication method.

摘要翻译： 磁共振成像（MRI）系统包括射频（RF）线圈，其接收关于脉冲序列的定时信息，并将定时信息存储在RF线圈的存储器中。 然后，当发射RF激励信号时，RF线圈进行解耦。 当产生磁共振（MR）回波信号时，RF线圈接收MR回波信号，并通过无线信道将MR回波信号发送到中央控制装置。 当发生传输错误时，RF线圈在没有发送RF激励信号或没有产生MR回波信号的空闲时间内重新发送对应的数据。 因此，与同步型通信方法相比，防止RF线圈被RF激励信号损坏，并且防止MR图像的质量恶化。

公开(公告)号：US09091740B2

公开(公告)日：2015-07-28

申请号：US13540966

申请日：2012-07-03

申请人： Young-cheol Kwon ,  Hyug-rae Cho

发明人： Young-cheol Kwon ,  Hyug-rae Cho

IPC分类号： G01V3/00 ,  G01R33/36

CPC分类号： G01R33/3692 ,  G01R33/3621 ,  H04L7/0091 ,  H04W56/00

摘要： A method of synchronizing clocks between a central controlling unit and a radio frequency (RF) coil which are wirelessly connected to each other in a magnetic resonance imaging (MRI) system, which includes receiving a first clock from the central controlling unit, synchronizing a second clock of the RF coil with a received first clock, and discontinuing the receiving of the first clock from the central controlling unit when the second clock is synchronized with the first clock.

摘要翻译： 一种在磁共振成像（MRI）系统中彼此无线连接的中央控制单元和射频（RF）线圈之间的时钟同步的方法，其包括从中央控制单元接收第一时钟， 具有接收到的第一时钟的RF线圈的时钟，并且当第二时钟与第一时钟同步时，中断从中央控制单元接收第一时钟。