专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

31. 发明申请

WO2013105006A1 MR IMAGING WITH B1 MAPPING 审中-公开
标题翻译：使用B1映射成像
公开(公告)号：WO2013105006A1
公开(公告)日：2013-07-18
申请号：PCT/IB2013/050084
申请日：2013-01-04
申请人： KONINKLIJKE PHILIPS N.V. , PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH
发明人： NEHRKE, Kay , BOERNERT, Peter , GRAESSLIN, Ingmar , KATSCHER, Ulrich , LEUSSLER, Christoph , EGGERS, Holger
IPC分类号： G01R33/24
CPC分类号： G01R33/50 , G01R33/243 , G01R33/246 , G01R33/54
摘要： The invention relates to a method of MR imaging, wherein a portion of a body placed in the examination volume of an MR device is subjected to an imaging sequence of RF pulses and switched magnetic field gradients. The imaging sequence is a stimulated echo sequence including i) two preparation RF pulses (α) radiated toward the portion of the body during a preparation period (21), and ii) reading RF pulses (β) radiated toward the portion of the body during an acquisition period (22) temporally subsequent to the preparation period (21). FID signals (I 1 ) and stimulated echo signals I 2 ) are acquired during the acquisition period (22) with equal T2*-weighting. A B1map indicating the spatial distribution of the RF field of the preparation RF pulses within the portion of the body is derived from the acquired FID (I 1 ) and stimulated echo (I 2 ) signals.
摘要翻译：本发明涉及一种MR成像方法，其中放置在MR装置的检查体积中的身体的一部分经受RF脉冲和切换磁场梯度的成像序列。所述成像序列是受激回波序列，其包括i）在准备期间（21）期间向身体部分辐射的两个准备RF脉冲（α），以及ii）读取朝向身体部分辐射的RF脉冲（β）在准备期间（21）之后的临时收购期间（22）。 FID信号（I1）和受激回波信号I2）在采集周期（22）期间采用相等的T2 *加权。从获取的FID（I1）和受激回波（I2）信号中导出指示身体部分内准备RF脉冲的RF场的空间分布的B1map。

32. 发明公开

EP2726892A1 MRI WITH SEPARATION OF DIFFERENT CHEMICAL SPECIES USING A SPECTRAL MODEL 审中-公开
标题翻译：与分离化学物质的不同物种的MRI使用模型的一个范围
公开(公告)号：EP2726892A1
公开(公告)日：2014-05-07
申请号：EP12740208.9
申请日：2012-06-20
申请人： Koninklijke Philips N.V. , Philips Intellectual Property & Standards GmbH
发明人： BOERNERT, Peter , EGGERS, Holger
IPC分类号： G01R33/48
CPC分类号： G01R33/4828 , A61B5/055
摘要： The invention relates to a method of MR imaging of at least two chemical species having different MR spectra. The method comprises the steps of: generating MR signals of the chemical species by subjecting a portion of a body (10) to an imaging sequence of RF pulses and switched magnetic field gradients, which imaging sequence is determined by a set of imaging parameters (TR, α, TE); acquiring the MR signals; determining a spectral model of at least one of the chemical species, which spectral model is associated with the set of imaging parameters (TR, α, TE); separating signal contributions of the at least two chemical species to the acquired MR signals on the basis of the spectral model; and computing a MR image from the signal contributions of one of the chemical species. Moreover, the invention related to a MR device (1) and to a computer program for a MR device (1).

33. 发明公开

EP2699927A2 CONTRAST ENHANCED MAGNETIC RESONANCE ANGIOGRAPHY WITH CHEMICAL SHIFT ENCODING FOR FAT SUPPRESSION 审中-公开
标题翻译：含化学移位码FOR脂肪减少对比度增强MR血管造影
公开(公告)号：EP2699927A2
公开(公告)日：2014-02-26
申请号：EP12720625.8
申请日：2012-04-17
申请人： Koninklijke Philips N.V. , Philips Intellectual Property & Standards GmbH
发明人： GEERTS-OSSEVOORT, Liesbeth , KOOIJMAN, Hendrik , ALBERTS, Eveline , EGGERS, Holger
IPC分类号： G01R33/54 , G01R33/561 , G01R33/56 , G01R33/563 , G01N24/08 , G01R33/48
CPC分类号： G01R33/4828 , A61B5/02007 , A61B5/055 , G01R33/5601 , G01R33/5615 , G01R33/56308 , G01R33/5635 , G01R33/56563
摘要： The invention relates to a method of performing contrast enhanced first pass magnetic resonance angiography, the method comprising: acquiring (302) magnetic resonance datasets of a region of interest using a single- or multi-echo data acquisition technique, wherein the echo times of the one or multiple echoes are flexible, wherein at the time of the data acquisition the region of interest comprises fat, water and a contrast agent, processing (304) the datasets using a generalized Dixon water-fat separation technique to eliminate the signal originating from the fat from the background for reconstruction of an image data set.

34. 发明授权

EP2145199B1 MAGNETIC RESONANCE DEVICE AND METHOD FOR PROPELLER MRI 有权转让
公开(公告)号：EP2145199B1
公开(公告)日：2018-12-12
申请号：EP08737949.1
申请日：2008-04-22
申请人： Koninklijke Philips N.V. , Philips Intellectual Property & Standards GmbH
发明人： EGGERS, Holger , NEHRKE, Kay , BOERNERT, Peter
IPC分类号： G01R33/561
CPC分类号： G01R33/4824 , G01R33/4826 , G01R33/4835 , G01R33/561 , G01R33/5615 , G01R33/5617 , G01R33/56509 , G01R33/5676
摘要： The invention relates to a device for MRI of a body (7) placed in an examination volume. The device (1) comprises means (2) for establishing a substantially homogeneous main magnetic field in the examination volume, means (3, 4, 5) for generating switched magnetic field gradients superimposed upon the main magnetic field, means (6) for radiating RF pulses towards the body (7), control means (12) for controlling the generation of the magnetic field gradients and the RF pulses, means (10) for receiving and sampling MR signals, and reconstruction means (14) for forming MR images from the signal samples. According to the invention, the device (1) is arranged to acquire an MR reference data set from a central portion of k-space prior to a multi-slice PROPELLER acquisition.

35. 发明授权

EP2618731B1 MAGNETIC RESONANCE IMAGING OF CHEMICAL SPECIES 有权
标题翻译：化学种类的磁共振成像
公开(公告)号：EP2618731B1
公开(公告)日：2017-12-20
申请号：EP11768159.3
申请日：2011-09-20
申请人： Koninklijke Philips N.V. , Philips Intellectual Property & Standards GmbH
发明人： EGGERS, Holger
IPC分类号： A61B5/055 , G01R33/48
CPC分类号： G01R33/4818 , G01R33/4828

36. 发明申请

WO2013098060A1 MRI WITH DIXON-TYPE WATER/FAT SEPARATION AND PRIOR KNOWLEDGE ABOUT INHOMOGENEITY OF THE MAIN MAGNETIC FIELD 审中-公开
标题翻译：具有DIXON型水/脂肪分离的MRI和关于主磁场不均匀性的先前知识
公开(公告)号：WO2013098060A1
公开(公告)日：2013-07-04
申请号：PCT/EP2012/074944
申请日：2012-12-10
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , PHILIPS INTELLECTUAL PROPERTIES & STANDARDS GMBH , BOS, Clemens
发明人： BOS, Clemens , EGGERS, Holger
IPC分类号： G01R33/48
CPC分类号： G01R33/4828 , A61B5/055 , G01R33/56563
摘要： The invention relates to a method of MR imaging of at least two chemical species having different MR spectra. It is an object of the invention to provide a method that enables Dixon water/fat separation in cases in which a large field-of-view is required. The method of the invention comprises the steps of: a) generating at least one echo signal by subjecting a body placed in the examination volume of a MR device to an imaging sequence of RF pulses and switched magnetic field gradients; b) acquiring the at least one echo signal; c) separating signal contributions of the at least two chemical species to the at least one acquired echo signal on the basis of a spectral model and prior knowledge about the spatial variation of the main magnetic field Bo in the examination volume; and d) reconstructing a MR image from the signal contributions of at least one of the chemical species. Moreover the invention relates to a MR device and to a computer program to be run on a MR device.
摘要翻译：本发明涉及至少两种具有不同MR谱的化学物质的MR成像方法。本发明的一个目的是提供一种在需要大视野的情况下能够进行狄克逊水/脂肪分离的方法。本发明的方法包括以下步骤：a）通过使放置在MR装置的检查体中的身体进行RF脉冲和切换磁场梯度的成像序列来产生至少一个回波信号; b）获取所述至少一个回波信号; c）基于光谱模型和关于检查体积中的主磁场Bo的空间变化的现有知识，将至少两个化学物质的信号贡献分离成至少一个获取的回波信号; 以及d）从所述化学物质中的至少一种的信号贡献重构MR图像。此外，本发明涉及在MR设备上运行的MR设备和计算机程序。

37. 发明申请

WO2011057752A3 SILAGEABDECKUNG 审中-公开
标题翻译：青贮COVER
公开(公告)号：WO2011057752A3
公开(公告)日：2011-05-19
申请号：PCT/EP2010/006799
申请日：2010-11-09
申请人： RKW SE , EGGERS, Holger
发明人： EGGERS, Holger
IPC分类号： B32B27/08 , A01F25/13 , A01F25/14
摘要： Die vorliegende Erfindung betrifft Siloabdeckungen umfassend wenigstens zwei Lagen, wobei eine innere dem Silo zugewandte erste Lage eine ein- oder mehrschichtige Kunststofffolie mit einer Sauerstoffdurchlässigkeit nach DIN 53380-3 bei 23 °C und 50 % relativer Feuchte von höchstens 500 cm 3 / (m 2 d bar) und mit einer Wasserdampfdurchlässigkeit nach ISO 15106-3 bei 23°C und 85% relativer Feuchte von wenigstens 5 g / (m 2 d) ist, die in wenigstens einer Schicht insgesamt wenigstens 50 Gew.-% einer oder mehrerer Materialien aus der Gruppe umfassend Polyamid, Copolyamid, Polyester, Copolyester, Polyethylenvinylalkohol, Polyvinylalkohol und Mischungen davon, enthält und mindestens eine über der inneren Lage liegende und von der inneren Lage getrennte oder leicht trennbare oder sich auf dem Silo selbst abtrennende zweite Lage, die zu wenigstens 70 Gew.-% aus Materialien aus der Gruppe umfassend Polyethylen, Polypropylen, Copolymerisate aus Ethylen und anderen Vinylmonomeren sowie Copolymerisate aus Propylen und anderen Vinylmonomeren besteht.
摘要翻译：
本发明涉及筒仓涵盖包含至少两个层，其中一个内，在23℃和50％的面向筒仓第一层是根据DIN 53380-3具有Sauerstoffdurchl BEAR LIQUID单或多层塑料膜相对湿度通过H＆ouml; chstens500厘米^{3 /（米^{2 d栏），并与根据ISO 15106-3一个Wasserdampfdurchl BEAR LIQUID在23℃和85％相对湿度为至少5克/（米^{2 d）中，在总的中的至少一个层的至少50重量的选自聚酰胺，共聚酰胺，聚酯，共聚酯，聚乙烯 - 乙烯醇，聚乙烯基醇的一种或多种材料％以及它们的混合物，包含HOLDS和内层卧中的至少一个上并从内层分离或容易地分离或甚至切断筒仓第二层，是至少70重量的选自材料％的包含聚乙烯，Polypro 乙烯和其他乙烯基单体的共聚物以及丙烯和其他乙烯基单体的共聚物。}}}

38. 发明公开

EP1654554A1 EFFICIENT MAPPING OF RECONSTRUCTION ALGORITHMS FOR MAGNETIC RESONANCE IMAGING ONTO A RECONFIGURABLE RECONSTRUCTION SYSTEM 审中-公开
标题翻译：强大的分配的重建算法的磁共振成像到可重新配置的重建系统
公开(公告)号：EP1654554A1
公开(公告)日：2006-05-10
申请号：EP04743992.2
申请日：2004-07-16
申请人： Koninklijke Philips Electronics N.V.
发明人： GRAESSLIN, Ingmar , EGGERS, Holger
IPC分类号： G01R33/561 , G01R33/3415 , G06F15/80
CPC分类号： G01R33/3621 , G01R33/3415 , G01R33/54 , G01R33/5608
摘要： A magnetic resonance (MR) system (10) includes radiofrequency (RF) 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, …, 42n) 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.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式