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1.发明授权公开(公告)号：US09366737B2
公开(公告)日：2016-06-14
申请号：US14851969
申请日：2015-09-11
CPC分类号： G01R33/3664 , G01R33/3628 , G01R33/3642 , G01R33/365 , G01R33/543
摘要： An electrically-controlled failsafe switch is included in an MRI transmit-and-receive RF coil assembly so as to protect it from induced RF currents in the event it is disconnected from an MRI system, but inadvertently left linked to strong MRI RF fields during imaging procedures using other RF coils.
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公开(公告)号：US09714993B2
公开(公告)日：2017-07-25
申请号：US13739236
申请日：2013-01-11
发明人： Yoshinori Hamamura , Xin Chen
CPC分类号： G01R33/44 , G01R33/288 , G01R33/36
摘要： A magnetic resonance imaging (MRI) system includes static and gradient magnetic field generators, at least one radio frequency (RF) coil, at least one RF transmitter and at least one RF receiver. At least one power consumption monitor is coupled to locally measure power consumed by the RF coil. The MRI control system has at least one computer configured to determine a specific absorption rate (SAR) for a patient coupled to the RF coil based on at least: (a) RF power transmitted to said RF coil while the RF coil is inductively coupled to the patient, and (b) an electrical signal output from the at least one power consumption monitor while the RF coil is inductively coupled to the patient.
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公开(公告)号：US09519038B2
公开(公告)日：2016-12-13
申请号：US13945370
申请日：2013-07-18
IPC分类号： G01R33/36 , G01R33/3415
CPC分类号： G01R33/3692 , G01R33/3415 , G01R33/3621
摘要： According to one embodiment, an MRI apparatus (20) obtains a nuclear magnetic resonance signal from an RF coil device (100) which detects the nuclear magnetic resonance signal emitted from an object (P), and this MRI apparatus (20) includes a first radio communication unit (200), a second radio communication unit (300) and an image reconstruction unit (56). The first radio communication unit (200) obtains the nuclear magnetic resonance signal detected by the RF coil device (100), and wirelessly transmits the nuclear magnetic resonance signal in a digitized state via an induced electric field. The second radio communication unit (300) receives the nuclear magnetic resonance signal wirelessly transmitted from the first radio communication unit (200) via the induced electric field. The image reconstruction unit (56) reconstructs image data of the object (P) based on the nuclear magnetic resonance signal received by the second radio communication unit (300).
摘要翻译： 根据一个实施例，MRI装置（20）从检测从物体（P）发射的核磁共振信号的RF线圈装置（100）获得核磁共振信号，该MRI装置（20）包括第一 无线电通信单元（200），第二无线电通信单元（300）和图像重建单元（56）。 第一无线电通信单元（200）获得由RF线圈装置（100）检测的核磁共振信号，并且经由感应电场以数字化状态无线地发送核磁共振信号。 第二无线电通信单元（300）经由感应电场接收从第一无线电通信单元（200）无线发送的核磁共振信号。 图像重建单元（56）基于由第二无线电通信单元（300）接收的核磁共振信号重建对象（P）的图像数据。
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公开(公告)号：US09517021B2
公开(公告)日：2016-12-13
申请号：US14033767
申请日：2013-09-23
CPC分类号： A61B5/0555 , A61B5/0002
摘要： A magnetic resonance imaging (MRI) system, method and/or apparatus is configured to effect MR imaging where data corresponding to MR signals is transmitted from a radio frequency (RF) receive coil to the MRI data processor via a path that includes a near-field wireless communication (NFC) connection. A receiver for the NFC connection is selected from of the one or more wireless signal receivers that are arranged on a restraining belt when the restraining belt is placed, during operation of an MRI system for imaging an object located on a patient table, over at least a portion of the object and the receive RF coil is located between the restraining belt and the object.
摘要翻译： 磁共振成像（MRI）系统，方法和/或装置被配置为实现MR成像，其中对应于MR信号的数据经由包括近场信号的路径从射频（RF）接收线圈发送到MRI数据处理器， 现场无线通信（NFC）连接。 在用于对位于患者台上的物体进行成像的MRI系统的操作期间，至少在至少一个用于对位于患者台上的物体进行成像的MRI系统的操作期间，从布置在限制带上的一个或多个无线信号接收器中选择用于NFC连接的接收器 物体和接收RF线圈的一部分位于约束带和物体之间。
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公开(公告)号：US20150087966A1
公开(公告)日：2015-03-26
申请号：US14033767
申请日：2013-09-23
CPC分类号： A61B5/0555 , A61B5/0002
摘要： A magnetic resonance imaging (MRI) system, method and/or apparatus is configured to effect MR imaging where data corresponding to MR signals is transmitted from a radio frequency (RF) receive coil to the MRI data processor via a path that includes a near-field wireless communication (NFC) connection. A receiver for the NFC connection is selected from of the one or more wireless signal receivers that are arranged on a restraining belt when the restraining belt is placed, during operation of an MRI system for imaging an object located on a patient table, over at least a portion of the object and the receive RF coil is located between the restraining belt and the object.
摘要翻译： 磁共振成像（MRI）系统，方法和/或装置被配置为实现MR成像，其中对应于MR信号的数据经由包括近场信号的路径从射频（RF）接收线圈发送到MRI数据处理器， 现场无线通信（NFC）连接。 在用于对位于患者台上的物体进行成像的MRI系统的操作期间，至少在至少一个用于对位于患者台上的物体进行成像的MRI系统的操作期间，从布置在限制带上的一个或多个无线信号接收器中选择用于NFC连接的接收器 物体和接收RF线圈的一部分位于约束带和物体之间。
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