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1. 发明申请

WO2012059845A1 METHOD OF CHARACTERIZING AN RF TRANSMIT CHAIN 审中-公开
标题翻译：表征RF发射链的方法
公开(公告)号：WO2012059845A1
公开(公告)日：2012-05-10
申请号：PCT/IB2011/054771
申请日：2011-10-26
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , VAN DEN BRINK, Johan Samuel , GRAESSLIN, Ingmar , KRUEGER, Sascha , WEISS, Steffen , VERNICKEL, Peter
发明人： VAN DEN BRINK, Johan Samuel , GRAESSLIN, Ingmar , KRUEGER, Sascha , WEISS, Steffen , VERNICKEL, Peter
IPC分类号： G01R33/44
CPC分类号： G01R33/36 , G01R33/246 , G01R33/44 , G01R33/5612 , G01R33/583
摘要： The invention relates to a method of characterizing the RF transmit chain of a magnetic resonance imaging scanner (1) using -a local transmit/receive coil system (204; 210), comprising a first local NMR probe and a first local magnetic resonance coil, the first NMR probe being spatially located in immediate neighborhood to the first coil, -a local receive coil system (206; 208), comprising a second local NMR probe and a second local magnetic resonance coil, the second NMR probe being spatially located in immediate neighborhood to the second coil, wherein the transmit chain comprises an external MR coil (9; 11; 12; 13), the method comprising: -determining with the first magnetic resonance coil, a first MR signal phase evolution of the local RF transmit field generated by MR excitation of the first probe using the first magnetic resonance coil by measuring the RF response of the first probe upon said excitation, -determining with the second magnetic resonance coil a second MR signal phase evolution of the local RF transmit field generated by MR excitation of the second probe using the external MR coil (9; 11; 12; 13) by measuring the RF response of the second probe upon said excitation, - calculating a phase offset between the first and second MR signal phase evolution.
摘要翻译：本发明涉及一种使用本地发射/接收线圈系统（204; 210）来表征磁共振成像扫描仪（1）的RF发射链的方法，该系统包括第一局部NMR探针和第一局部磁共振线圈，空间上位于第一线圈附近的第一NMR探针 - 局部接收线圈系统（206; 208），包括第二局部NMR探针和第二局部磁共振线圈，所述第二NMR探针在空间上位于立即邻近于所述第二线圈，其中所述发射链包括外部MR线圈（9; 11; 12; 13），所述方法包括： - 利用所述第一磁共振线圈确定所述本地RF发射场的第一MR信号相位演变通过在所述激发时测量第一探针的RF响应，使用第一磁共振线圈通过MR激发而产生的第一探针， - 用第二磁共振线圈确定第二MR信号phas 使用外部MR线圈（9; 9）的第二探针的MR激发产生的局部RF发射场的演变。 11; 12; 13）通过在所述激励时测量第二探针的RF响应， - 计算第一和第二MR信号相位演化之间的相位偏移。

2. 发明申请

WO2010113121A1 MAGNETIC RESONANCE SYSTEM AND METHOD FOR COMPREHENSIVE IMPLANTABLE DEVICE SAFETY TESTS AND PATIENT SAFETY MONITORING 审中-公开
标题翻译：磁共振系统及全面可植入装置安全测试方法及患者安全监察
公开(公告)号：WO2010113121A1
公开(公告)日：2010-10-07
申请号：PCT/IB2010/051398
申请日：2010-03-31
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , GRAESSLIN, Ingmar , KRUEGER, Sascha
发明人： GRAESSLIN, Ingmar , KRUEGER, Sascha
IPC分类号： G01R33/28
CPC分类号： G01R33/285 , G01R33/288
摘要： A magnetic resonance method comprises: performing (C1) a magnetic resonance procedure on a calibration subject including an implant device; detecting (C2) a pick-up coil (PUC) signal at least during a radio frequency transmit phase of operation (C1); performing (C3) three dimensional temperature mapping of the calibration subject using a magnetic resonance sequence configured to detect any temperature change induced in any part of the implant device by operation (C1); generating (C4) an unsafe condition criterion (30) for the detected PUC signal based on correlating a PUC signal characteristic detected by operation (C2) with a temperature change detected by operation (C3); performing (M5) the magnetic resonance procedure on a subject containing an implant device; detecting (M6) a PUC signal at least during a radio frequency transmit phase of operation (M5); and monitoring (M7) for an unsafe condition indicated by the PUC signal detected in operation (M6) satisfying the unsafe condition criterion (30).
摘要翻译：磁共振方法包括：在包括植入装置的校准对象上执行（C1）磁共振程序; 至少在射频发射阶段（C1）期间检测（C2）拾波线圈（PUC）信号; 使用构造成通过操作（C1）检测在植入装置的任何部分中诱导的任何温度变化的磁共振序列来执行（C3）校准对象的三维温度映射; 基于通过操作（C2）检测到的PUC信号特性与由操作（C3）检测到的温度变化相关联，生成（C4）用于检测到的PUC信号的不安全条件标准（30）。对包含植入装置的受试者执行（M5）磁共振程序; 至少在射频发射阶段（M5）期间检测（M6）PUC信号; 以及对满足不安全条件标准（30）的在操作中检测到的PUC信号（M6）指示的不安全状态进行监视（M7）。

3. 发明申请

WO2010076684A1 CONTINUOUS MECHANICAL TUNING OF TRANSFORMERS INSERTED IN RF-SAFE TRANSMISSION LINES FOR INTERVENTIONAL MRI 审中-公开
标题翻译：用于传统MRI的RF安全传输线插入的变压器的连续机械调谐
公开(公告)号：WO2010076684A1
公开(公告)日：2010-07-08
申请号：PCT/IB2009/055300
申请日：2009-11-23
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , KRUEGER, Sascha
发明人： KRUEGER, Sascha
IPC分类号： G01R33/28
CPC分类号： G01R33/287 , G01R33/288
摘要： A transformer line (46) extends through a catheter or other interventional instrument (30) that is to be used in the examination region (14) of a magnetic resonance imaging apparatus (10). The transformer line includes pairs of transformer windings (28) which are tuned in order to adjust the operating frequency and the maximum attenuation frequencies. Eccentric cams or other tuning elements (50, 64) are disposed in the transformer windings. Rotating the eccentric cams mechanically changes the geometry of the transformer windings, changing their inductive properties, and thus the frequency to which each is tuned.
摘要翻译：变压器线（46）延伸穿过将用于磁共振成像设备（10）的检查区域（14）中的导管或其他介入器械（30）。变压器线包括成对的变压器绕组（28），其被调谐以便调整工作频率和最大衰减频率。偏心凸轮或其他调谐元件（50,64）设置在变压器绕组中。旋转偏心凸轮机械地改变变压器绕组的几何形状，改变其感应特性，从而改变每个调谐器的频率。

4. 发明申请

WO2008078294A1 TRANSMISSION LINE FOR USE IN MAGNETIC RESONANCE SYSTEM 审中-公开
标题翻译：用于磁共振系统的传输线
公开(公告)号：WO2008078294A1
公开(公告)日：2008-07-03
申请号：PCT/IB2007/055252
申请日：2007-12-20
申请人： PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , KONINKLIJKE PHILIPS ELECTRONICS N.V. , WIRTZ, Daniel , LIPS, Oliver , KRUEGER, Sascha , DAVID, Bernd , WEISS, Steffen
发明人： WIRTZ, Daniel , LIPS, Oliver , KRUEGER, Sascha , DAVID, Bernd , WEISS, Steffen
IPC分类号： G01R33/28
CPC分类号： G01R33/287 , G01R33/288
摘要： An electrically conductive transmission cable for supplying a DC signal safely to an electrical device in the presence of radio-frequency (RF) fields in a magnetic resonance (MR) is disclosed herein. The transmission cable comprises a transmission line (STL) comprising at least a first segment (S1) and a second segment (S2), wherein the first and second segments are electrically connected to each other by a reactive coupling unit (103), and a rectifier unit (101) connected to the transmission line and configured to extract the DC signal (203) from the modulated DC signal (201). The extracted DC signal may be supplied to an electrical device or used for cardiac pacing. The transmission cable finds application in auxiliary devices used in an MR environment, for example an interventional catheter with or without an active tracking circuit (301).
摘要翻译：本文公开了一种用于在磁共振（MR）中存在射频（RF）场的情况下将DC信号安全地提供给电气设备的导电传输电缆。传输电缆包括至少包括第一段（S1）和第二段（S2）的传输线（STL），其中第一和第二段通过无功耦合单元（103）彼此电连接，并且整流单元（101），连接到所述传输线并且被配置为从所述调制的DC信号（201）提取所述DC信号（203）。所提取的DC信号可以被提供给电气设备或用于心脏起搏。传输电缆可用于在MR环境中使用的辅助设备中，例如具有或不具有主动跟踪电路（301）的介入导管。

5. 发明申请

WO2007122553A3 PASSIVE MR VISUALISATION OF INTEVENTIONAL INSTRUMENTS 审中-公开
公开(公告)号：WO2007122553A3
公开(公告)日：2007-11-01
申请号：PCT/IB2007/051376
申请日：2007-04-17
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , KRUEGER, Sascha , WEISS, Steffen , DAHNKE, Hannes , SCHAEFFTER, Tobias, R.
发明人： KRUEGER, Sascha , WEISS, Steffen , DAHNKE, Hannes , SCHAEFFTER, Tobias, R.
IPC分类号： G01R33/28
摘要： The invention relates to a device for magnetic resonance imaging of a body (7), wherein the device (1) is arranged to a) generate a series of MR echo signals (20) by subjecting at least a portion of the body (7) to an MR imaging sequence comprising RF pulses and switched magnetic field gradients, b) acquire the MR echo signals for reconstructing an MR image (21) therefrom, c) calculate a susceptibility gradient map (22) from the MR echo signals or from the MR image (21), the susceptibility gradient map (22) indicating local susceptibility induced magnetic field gradients, d) determine the position of an interventional instrument (16) having paramagnetic or ferromagnetic properties from the susceptibility gradient map (22).

6. 发明申请

WO2012168869A1 MEDICAL IMAGING SYSTEM WITH MOTION DETECTION 审中-公开
标题翻译：具有运动检测的医学成像系统
公开(公告)号：WO2012168869A1
公开(公告)日：2012-12-13
申请号：PCT/IB2012/052839
申请日：2012-06-06
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , FORTHMANN, Peter , AMTHOR, Thomas Erik , KRUEGER, Sascha , KUHN, Michael Harald
发明人： FORTHMANN, Peter , AMTHOR, Thomas Erik , KRUEGER, Sascha , KUHN, Michael Harald
IPC分类号： A61B5/055 , A61B5/107 , A61B5/113 , G01R33/565
CPC分类号： A61B5/1128 , A61B5/0082 , A61B5/055 , A61B5/1077 , A61B5/113 , A61B5/6804 , A61B5/6823 , A61B5/7278 , A61B6/4417 , A61B6/527 , A61B8/5276 , A61B2562/0266 , G01R33/28 , G01R33/34084 , G01R33/3415 , G01R33/4808 , G01R33/56509 , G01R33/5673
摘要： A medical imaging system comprises an image data acquisition module to acquire imaging data and a motion detection module to acquire motion information. A reconstruction module reconstructs image datasets from the imaging data and with use of the motion information to correct for motion. The motion detection module is provided with a shape-sensing photonic fibre system to provide a photonic output representative of the spatial shape of the photonic fibre and an arithmetic unit to compute the motion information on the basis of the photonic output.
摘要翻译：医疗成像系统包括：图像数据获取模块，用于获取成像数据;以及运动检测模块，用于获取运动信息。重建模块从成像数据中重建图像数据集，并利用运动信息来校正运动。运动检测模块设置有形状感测光子纤维系统，以提供表示光子纤维的空间形状的光子输出和运算单元，以基于光子输出来计算运动信息。

7. 发明申请

WO2010082145A2 ELECTROPHYSIOLOGY CATHETER 审中-公开
标题翻译：电子生物学导管
公开(公告)号：WO2010082145A2
公开(公告)日：2010-07-22
申请号：PCT/IB2010/050052
申请日：2010-01-07
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , LIPS, Oliver , DAVID, Bernd , KRUEGER, Sascha , WEISS, Steffen
发明人： LIPS, Oliver , DAVID, Bernd , KRUEGER, Sascha , WEISS, Steffen
IPC分类号： A61B5/042
CPC分类号： A61B5/0422
摘要： The invention relates to electrophysiology catheter systems and their use, such as in an MRI environment, and in particular to analysis of electric signals from such. An electrophysiology (EP) catheter with a plurality of electrically isolated electrode segments arranged in longitudinally spaced bands around the catheter is used to detect electric signals. A workstation receives the electrical signals which are then processed by a processing unit. Electric signals from electrode segments can be used to determine roll angle information of the catheter in relation to patient anatomy by determining signals from electrode segments in contact with tissue. Also, electric signals can be used to extract a reference signal that can be used to correct for gradient induced artefacts.
摘要翻译：本发明涉及电生理学导管系统及其用途，例如在MRI环境中的用途，并且特别涉及来自这种用途的电信号的分析。具有多个电隔离电极段的电生理学（EP）导管用于检测电信号，所述多个电隔离电极段布置在导管周围的纵向隔开的带中。工作站接收电信号，然后由处理单元进行处理。通过确定来自与组织接触的电极段的信号，可以使用来自电极段的电信号来确定导管相对于患者解剖结构的侧倾角信息。此外，电信号可用于提取可用于校正梯度诱导伪影的参考信号。

8. 发明申请

WO2010076681A1 GENERAL INDUCTIVE HANDPIECE FOR ACTIVE DEVICES 审中-公开
标题翻译：用于主动装置的通用电感器
公开(公告)号：WO2010076681A1
公开(公告)日：2010-07-08
申请号：PCT/IB2009/055294
申请日：2009-11-23
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , KRUEGER, Sascha
发明人： KRUEGER, Sascha
IPC分类号： A61B5/055 , G01R33/36
CPC分类号： G01R33/34084 , A61B5/055 , G01R33/3628
摘要： A handpiece (32) defines a bore (62) in which a proximal end (56) of a catheter or other interventional instrument (30) is received. An insulating support (70) supports an interventional instrument which carries an interventional instrument winding (54) in, but spaced from, the internal bore (62). A handpiece winding (64) disposed along the bore interacts with the transmission line winding (54) to form an inductive coupling with the transmission line. After the handpiece is slid axially to adjust the inductive coupling between the windings (54, 64), a locking mechanism functions in such a manner that the interventional instrument is inhibited from axial sliding motion relative to the handpiece while permitting rotation of the interventional instrument relative to the handpiece thus maintaining the inductive coupling while allowing optimal handling of the device.
摘要翻译：手柄（32）限定了孔（62），其中接收了导管或其他介入器械（30）的近端（56）。绝缘支撑件（70）支撑介入仪器，其携带介入式仪器绕组（54），但与内孔（62）间隔开。沿着孔设置的手持绕组（64）与传输线绕组（54）相互作用以形成与传输线的感应耦合。在手持件滑动以调节绕组（54,64）之间的感应耦合之后，锁定机构以这样的方式起作用，使得介入器械被禁止相对于手持件的轴向滑动运动，同时允许介入器械相对从而保持电感耦合，同时允许设备的最佳处理。

9. 发明申请

WO2008107838A1 APPARATUS AND METHOD FOR APPLYING ENERGY WITHIN AN OBJECT 审中-公开
标题翻译：在对象中应用能量的装置和方法
公开(公告)号：WO2008107838A1
公开(公告)日：2008-09-12
申请号：PCT/IB2008/050769
申请日：2008-03-03
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , DAVID, Bernd , WIRTZ, Daniel , LIPS, Oliver , WEISS, Steffen , KRUEGER, Sascha
发明人： DAVID, Bernd , WIRTZ, Daniel , LIPS, Oliver , WEISS, Steffen , KRUEGER, Sascha
IPC分类号： A61N1/08 , A61N1/16 , A61N1/37 , A61B5/055
CPC分类号： A61N1/08 , A61B5/055 , A61B2562/222 , A61N1/086 , A61N1/3718
摘要： The invention relates to an apparatus for applying energy within an object. The apparatus comprises an energy applying unit (8, 9), which includes an energy emitting element (9) for outputting energy within the object and an energy storage unit (8) locatable within the object and coupled to the energy emitting element. The apparatus comprises further an electrical control line (12) coupled to the energy applying unit for controlling the application of energy within the object by controlling a transmission of energy from the energy storage unit to the energy emitting element. The invention relates further to a corresponding method and a corresponding computer program.
摘要翻译：本发明涉及一种在物体内施加能量的装置。该装置包括能量施加单元（8,9），其包括用于在物体内输出能量的能量发射元件（9）和位于物体内的能量存储单元（8），并耦合到能量发射元件。该装置还包括耦合到能量施加单元的电气控制线（12），用于通过控制从能量存储单元到能量发射元件的能量传输来控制物体内的能量的施加。本发明进一步涉及相应的方法和相应的计算机程序。

10. 发明申请

WO2012137148A1 MAGNETIC RESONANCE GUIDANCE OF A SHAFT TO A TARGET ZONE 审中-公开
标题翻译：对目标区域的磁共振指导
公开(公告)号：WO2012137148A1
公开(公告)日：2012-10-11
申请号：PCT/IB2012/051661
申请日：2012-04-04
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , WEISS, Steffen , HOLTHUIZEN, Ronaldus, Frederik, Johannes , KRUEGER, Sascha , KOKEN, Peter , WIRTZ, Daniel , AMTHOR, Thomas, Erik , UHLEMANN, Falk
发明人： WEISS, Steffen , HOLTHUIZEN, Ronaldus, Frederik, Johannes , KRUEGER, Sascha , KOKEN, Peter , WIRTZ, Daniel , AMTHOR, Thomas, Erik , UHLEMANN, Falk
IPC分类号： G01R33/28 , A61B5/055
CPC分类号： A61B5/055 , A61B5/064 , A61B5/6832 , A61B5/72 , G01R33/287 , G01R33/34084
摘要： A medical apparatus (1100) comprising a magnetic resonance imaging system and an interventional device (300) comprising a shaft (302, 1014, 1120). The medical apparatus further comprises a toroidal magnetic resonance fiducial marker (306, 600, 800, 900, 1000, 1122) attached to the shaft. The shaft passes through a center point (610, 810, 908, 1006) of the fiducial marker. The medical apparatus further comprises machine executable instructions (1150, 1152, 1154, 1156, 1158) for execution by a processor. The instructions cause the processor to acquire (100, 200) magnetic resonance data, to reconstruct (102, 202) a magnetic resonance image (1142), and to receive (104, 204) the selection of a target volume (1118, 1144, 1168). The instructions further cause the processor to repeatedly: acquire (106, 206) magnetic resonance location data (1146) from the fiducial marker and render (108, 212) a view (1148, 1162) indicating the position of the shaft relative to the target zone..
摘要翻译：一种包括磁共振成像系统和包括轴（302,1014,1120）的介入装置（300）的医疗装置（1100）。医疗装置还包括连接到轴的环形磁共振基准标记（306,600,800,900,1000,1122）。轴通过基准标记的中心点（610,810,908,1006）。医疗设备还包括用于由处理器执行的机器可执行指令（1150,1152,1154,1156,1158）。所述指令使得所述处理器获取（100,200）磁共振数据，以重建（102,202）磁共振图像（1142），并且接收（104,204）所述目标体积（1118,1144， 1168）。所述指令还使所述处理器重复地：从所述基准标记获取（106,206）磁共振位置数据（1146），并且渲染（108,212）指示所述轴相对于所述目标的位置的视图（1148,1162）区..

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