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    • 1. 发明公开
    • DEDICATED USER INTERFACE FOR MR-GUIDED INTERSTITIAL INTERVENTIONS
    • ZUGEORDNETE BENUTZERSCHNITTSTELLEFÜRMR-GEFÜHRTEINTERSTITIELLE EINGRIFFE
    • EP2866649A2
    • 2015-05-06
    • EP13752934.3
    • 2013-06-20
    • Koninklijke Philips N.V.Philips GmbH
    • WEISS, SteffenAMTHOR, Thomas ErikKRUEGER, SaschaWIRTZ, DanielUHLEMANN, Falk
    • A61B5/05A61B5/06A61B19/00G01R33/28
    • A magnetic resonance (MR) system (10) for guidance of a shaft or needle (16) to a target (14) of a subject (12) is provided. The system includes a user interface (76). The user interface (76) includes a frame (78) positioned on a surface of the subject (12). The frame (78) includes an opening (82) over an entry point of a planned trajectory for the shaft or needle (16). The planned trajectory extends from the entry point to the target (14). The user interface (76) further includes one or more visual indicators (80) arranged on the frame (78) around the opening (82). The one or more visual indicators (80) at least one of: 1) visually indicate deviation of the shaft or needle (16) from the planned trajectory; and 2) visually indicate a current position of a real-time slice of real-time MR images.
    • 提供了一种用于将轴或针(16)引导到对象(12)的目标(14)的磁共振(MR)系统(10)。 该系统包括用户界面(76)。 用户界面(76)包括位于被摄体(12)的表面上的框架(78)。 框架(78)包括在轴或针(16)的计划轨迹的入口点上方的开口(82)。 计划轨迹从进入点延伸到目标(14)。 用户界面(76)还包括布置在围绕开口(82)的框架(78)上的一个或多个视觉指示器(80)。 所述一个或多个视觉指示器(80)至少一个:1)可视地指示所述轴或针(16)与所述计划轨迹的偏差; 和2)可视地指示实时MR图像的实时切片的当前位置。
    • 7. 发明申请
    • MAGNETIC RESONANCE FINGERPRINTING IN SLICES ALONG A ONE-DIMENSIONAL EXTENSION
    • 在一维延伸中指向单曲的磁共振
    • WO2016074946A1
    • 2016-05-19
    • PCT/EP2015/075194
    • 2015-10-30
    • KONINKLIJKE PHILIPS N.V.
    • AMTHOR, Thomas ErikDONEVA, Mariya IvanovaKOKEN, PeterKEUPP, JochenBOERNERT, Peter
    • G01R33/483G01R33/50A61B5/055G01R33/30G01R33/48G01R33/54
    • A61B5/055A61B5/4872G01R33/307G01R33/4828G01R33/4835G01R33/50G01R33/54G01R33/563
    • The invention provides for a magnetic resonance imaging system (100) which comprise a magnet (104) and a magnetic field gradient generator (110, 112) for generating a gradient magnetic field within an imaging zone (108). The gradient magnetic field is aligned with a predetermined direction. The magnetic resonance imaging system further comprise a memory (134, 136) for storing machine executable instructions (150, 152, 154), a pre-calculated magnetic resonance fingerprinting dictionary (144), and pulse sequence instructions (140). The pulse sequence instructions cause the magnetic resonance imaging system to acquire the magnetic resonance data according to a magnetic resonance fingerprinting technique. The magnetic resonance fingerprinting technique encodes the magnetic resonance data as slices (125). The pre-calculated magnetic resonance fingerprinting dictionary contains a listing of calculated magnetic resonance signals in response to execution of the pulse sequence instructions for a set of predetermined substances. Execution of the machine executable instructions causes a processor (130) controlling the magnetic resonance imaging system to: acquire (300) the magnetic resonance data by controlling the magnetic resonance imaging system with pulse sequence instructions; divide (302) the magnetic resonance data into a set of slices; calculate (304) the abundance of each of the set of predetermined substances within each of the set of slices by comparing the magnetic resonance data for each of the set of slices with the pre-calculated magnetic resonance fingerprinting dictionary; and calculate (306) amagnetic resonance fingerprint chart by plotting abundance of each of the set of predetermined substances within each of the set of slicesas a function of position along the predetermined direction.
    • 本发明提供一种磁共振成像系统(100),其包括用于在成像区域(108)内产生梯度磁场的磁体(104)和磁场梯度发生器(110,112)。 梯度磁场与预定方向对齐。 磁共振成像系统还包括用于存储机器可执行指令(150,152,154),预先计算的磁共振指纹词典(144)和脉冲序列指令(140)的存储器(134,136)。 脉冲序列指令使得磁共振成像系统根据磁共振指纹技术获取磁共振数据。 磁共振指纹技术将磁共振数据编码为片(125)。 预先计算的磁共振指纹词典包含响应于一组预定物质的脉冲序列指令的执行而计算的磁共振信号的列表。 执行机器可执行指令使得控制磁共振成像系统的处理器(130)通过用脉冲序列指令控制磁共振成像系统来获取(300)磁共振数据; 将(302)磁共振数据划分成一组切片; 通过将所述一组切片中的每一个的磁共振数据与所述预先计算的磁共振指纹词典进行比较,来计算(304)所述一组切片中的每组中的所述一组预定物质的丰度; 并且通过绘制在所述一组切片中的每组中的所述一组预定物质中的每一个的丰度作为沿着所述预定方向的位置的函数来计算(306)磁共振指纹图。