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1. 发明公开

US20230243911A1 Target Motion Signal Acquisition 审中-公开
公开(公告)号：US20230243911A1
公开(公告)日：2023-08-03
申请号：US18102846
申请日：2023-01-30
申请人： Siemens Shenzhen Magnetic Resonance Ltd.
发明人： Yan Tu Huang , Peter Speier
IPC分类号： G01R33/565 , G01R33/56
CPC分类号： G01R33/56509 , G01R33/5608
摘要： Method acquiring a target physiological motion signal, including: acquiring multi-channel complex signals received by multiple channels; and acquiring, from the multi-channel complex signals using a motion signal synthesis vector corresponding to a target motion signal, a target motion complex signal with interference removed; acquiring data received by multiple channels, the data including data without external interference in a first sub-period and data with external interference in a second sub-period; acquiring an external interference suppression matrix based on the data, and acquiring external interference suppression data based on the data without external interference or the data with external interference and the external interference suppression matrix; acquiring a motion signal correlation matrix of the target motion signal in frequency domain based on a frequency range of the target motion signal; and using, as a motion signal synthesis vector, an eigenvector acquired according to an eigenvalue of the motion signal correlation matrix.

2. 发明申请

US20190331745A1 RADIO-FREQUENCY SYSTEM FOR A MAGNETIC RESONANCE APPARATUS 审中-公开
公开(公告)号：US20190331745A1
公开(公告)日：2019-10-31
申请号：US16394345
申请日：2019-04-25
申请人： Siemens Shenzhen Magnetic Resonance Ltd.
发明人： Yan Li Chen , Shu Du , Markus Vester , JianMin Wang
IPC分类号： G01R33/34 , G01R33/422 , G01R33/36 , G01R33/3415
摘要： A radio-frequency system for a magnetic resonance apparatus has a local coil, a body coil, and an impedance adjusting shield. The body coil is wirelessly power-coupled with the local coil such that the body coil serves as a transmitting coil for radio-frequency signals and the local coil serves as a receiving coil for magnetic resonance signals. The local coil is disposed in an internal cavity of the impedance adjusting shield. An impedance of the local coil is adjusted by the impedance adjusting shield so as to match the impedance of the local coil and the body coil. The impedance adjusting shield has a frequency modulation element that adjusts the resonance frequency of the local coil. The body coil couples power to the local coil, and the impedance adjusting shield effectively reduces energy transmission efficiency loss caused by reflection, thereby improving energy transmission efficiency.

3. 发明申请

US20180267119A1 METHOD FOR COOLING MAGNETIC RESONANCE IMAGING APPARATUS AND MAGNETIC RESONANCE IMAGING APPARATUS 审中-公开
公开(公告)号：US20180267119A1
公开(公告)日：2018-09-20
申请号：US15547562
申请日：2016-01-29
申请人： SIEMENS SHENZHEN MAGNETIC RESONANCE LTD.
发明人： Ping CHEN , Hai Ning YANG
IPC分类号： G01R33/38 , G01R33/381 , H01F27/16
CPC分类号： G01R33/3804 , G01R33/381 , G01R33/3815 , H01F6/04 , H01F27/16
摘要： A method for cooling an MRI apparatus and an MRI apparatus are provided. The MRI apparatus comprises a magnet, a primary cooling device and a secondary cooling device. The primary cooling device is in contact with the magnet and the secondary cooling device separately. The method comprises continuously monitoring the pressure of the magnet; turning off the secondary cooling device if the pressure is greater than or equal to a first preset pressure, less than a second preset pressure and in a rising state. The method and MRI apparatus can save electricity, and since the use duration of the secondary cooling device is also reduced, the lifespan of the secondary cooling device is prolonged, thus saving costs.

4. 发明授权

US08917153B2 Supported pot magnet for magnetic resonance system 有权
标题翻译：用于磁共振系统的支撑式磁铁
公开(公告)号：US08917153B2
公开(公告)日：2014-12-23
申请号：US13905532
申请日：2013-05-30
申请人： Lei Yang , Bu Qing Zhang
发明人： Lei Yang , Bu Qing Zhang
IPC分类号： H01F6/00 , G01R33/38 , G01R33/3815 , H01F6/04 , H01F6/06
CPC分类号： H01F6/04 , G01R33/3802 , G01R33/3804 , G01R33/3815 , H01F6/06
摘要： A supported pot magnet has a magnet coil and a coil former, with the coil former being made of a non-metallic material having a thermal contraction coefficient the same as that of the magnet coil. The supported pot magnet also has a cooling circulator composed of two identical separate components with a semi-cylindrical shape, each having multiple cooling tubes, a refrigerant inlet tube, a refrigerant outlet tube, and multiple clamps. The cooling tubes have a semicircular shape and mate with the slots, and are provided thereon with heat conducting members that are vertically disposed at an inner side of the cooling tubes. The refrigerant inlet tube and outlet tube are vertically mounted at two ends of the cooling tubes, in communication with the cooling tubes. The clamps are disposed on the refrigerant inlet tube and outlet tube.
摘要翻译：支撑罐式磁体具有磁体线圈和线圈架，线圈架由具有与磁体线圈相同的热收缩系数的非金属材料制成。支撑罐式磁铁还具有冷却循环器，该冷却循环器由具有半圆柱形状的两个相同的分离部件组成，每个部件具有多个冷却管，制冷剂入口管，制冷剂出口管和多个夹具。冷却管具有半圆形状并与槽配合，并且在其上设置有导热构件，其垂直设置在冷却管的内侧。制冷剂入口管和出口管垂直安装在冷却管的两端，与冷却管连通。夹具设置在制冷剂入口管和出口管上。

5. 发明申请

US20170273638A1 STIMULATED ECHO SEQUENCE SCANNING MAGNETIC RESONANCE METHOD AND APPARATUS FOR HEART DIFFUSION IMAGING 审中-公开
公开(公告)号：US20170273638A1
公开(公告)日：2017-09-28
申请号：US15465976
申请日：2017-03-22
申请人： Siemens Shenzhen Magnetic Resonance Ltd.
发明人： Jing An , Fang Dong , Zhi Guo Sun , Yu Yu Wang , Qiong Zhang
IPC分类号： A61B5/00 , A61B5/0402 , A61B5/055 , G01R33/567 , G01R33/563
摘要： In a method and magnetic resonance (MR) apparatus for heart diffusion imaging, when an ECG trigger signal by a computer that operates an MR scanner, the MR scanner is operated to acquire a navigator echo before a stimulated echo sequence, in order to detect diaphragm position information. When the first diaphragm position information is not located in an acquisition window, the stimulated echo sequence is not executed, and the computer waits to receive the next ECG trigger signal. The detection time of the navigator echo after the stimulated echo sequence as well as the acquisition time of the stimulated echo sequence, are thus eliminated when the first diaphragm position information does not meet requirements, so can significantly reduce scanning time, and increase the image SNR.

6. 发明申请

US20180252782A1 RADIO-FREQUENCY COIL APPARATUS AND BASE 审中-公开
公开(公告)号：US20180252782A1
公开(公告)日：2018-09-06
申请号：US15910488
申请日：2018-03-02
申请人： Siemens Shenzhen Magnetic Resonance Ltd.
发明人： Jun You , Zeng He He , Stephan Zink , Volker Matschl , Wen Ming Li , Rainer Kurth
IPC分类号： G01R33/34 , G01R33/3415
CPC分类号： G01R33/34092 , A61B5/055 , G01R33/34007 , G01R33/3415 , G01R33/36
摘要： Radio-frequency (RF) coil apparatus for magnetic resonance imaging has a base and an RF coil, wherein the base has a sliding base guide structure and a guide cavity, the RF coil has a sliding coil structure fitting the sliding base guide structure, and an electric cable of the RF coil is accommodated in the guide cavity and can move in the guide cavity. One end of the electric cable is fixed to the RF coil by a first fixing bracket, and another end of the electric cable is fixed to the base by a second fixing bracket so that a predetermined length of the cable projects from the base.

7. 发明申请

US20170276752A1 CONTROL COMPUTER AND SIGNAL PROCESSING BOARD FOR A MAGNETIC RESONANCE IMAGING SYSTEM 审中-公开
公开(公告)号：US20170276752A1
公开(公告)日：2017-09-28
申请号：US15465944
申请日：2017-03-22
申请人： Siemens Shenzhen Magnetic Resonance Ltd.
发明人： Guang Bao Dai , Jian Zhang Jia , Yong Chao Zhou
IPC分类号： G01R33/54 , G01R33/385 , G01R33/36
CPC分类号： G01R33/543 , G01R33/3607 , G01R33/3621 , G01R33/3852
摘要： A control computer for a magnetic resonance imaging system has an analog-to-digital conversion array, a multiplexer array connected to the analog-to-digital conversion array, and a control module that receives at least one input signal via the multiplexer array and the analog-to-digital conversion array. A signal processing board for a magnetic resonance imaging system has a substrate with the aforementioned components thereon that form the aforementioned control computer.

8. 发明申请

US20160231398A1 TENSIONING APPARATUS, SUPERCONDUCTING MAGNET AND MAGNETIC RESONANCE IMAGING APPARATUS 审中-公开
标题翻译：张力装置，磁铁和磁共振成像装置
公开(公告)号：US20160231398A1
公开(公告)日：2016-08-11
申请号：US15018023
申请日：2016-02-08
申请人： Siemens Shenzhen Magnetic Resonance Ltd.
发明人： Edward Wedderburn Kershaw , Nicholas Mann , Bu Qing Zhang , Shao Kun Zhao
IPC分类号： G01R33/38 , G01R33/44 , G01R33/3815
CPC分类号： G01R33/3802 , G01R33/3815
摘要： A tensioning apparatus for supporting a low-temperature apparatus in a vacuum vessel of a superconducting magnet of a magnetic resonance imaging apparatus, has a main body that has a fixed end for fixing the main body, and a free end, a locating piece, situated between the fixed end and the free end; and an adjusting piece having a supporting part, supported between the free end and the locating piece, and an operating part, connected to the supporting part, and operable for adjusting the length of the supporting part in the direction of extension of the main body and thereby tensioning the main body.
摘要翻译：用于在磁共振成像设备的超导磁体的真空容器中支撑低温装置的张紧装置具有主体，该主体具有用于固定主体的固定端和自由端，定位件位于固定端与自由端之间; 以及调节件，其具有支撑在所述自由端和所述定位件之间的支撑部分，以及操作部分，其连接到所述支撑部分，并且可操作以用于在所述主体的延伸方向上调节所述支撑部分的长度;以及从而张紧主体。

9. 发明申请

US20160223633A1 MAGNETIC RESONANCE IMAGING METHOD AND DEVICE ACHIEVING WATER/FAT SEPARATION 审中-公开
标题翻译：磁共振成像方法和实现水/脂肪分离的装置
公开(公告)号：US20160223633A1
公开(公告)日：2016-08-04
申请号：US15015314
申请日：2016-02-04
申请人： Siemens Shenzhen Magnetic Resonance Ltd.
发明人： Jun Xiong , Zhi Gen Yang
IPC分类号： G01R33/54
CPC分类号： G01R33/543
摘要： In a method and medical equipment for selecting a scanning protocol set, a preset virtual scanned object model including multiple scanned areas is loaded into a computer. The virtual scanned object model is a graphic or image model. A scanned area is selected by use of the virtual scanned object model. A default scanning protocol is set corresponding to the selected scanned area according to a preset correlation between the scanned area and the scanning protocol set, so as to complete the selection of the scanning protocol set.
摘要翻译：在用于选择扫描协议集的方法和医疗设备中，将包括多个扫描区域的预设虚拟扫描对象模型加载到计算机中。虚拟扫描对象模型是图形或图像模型。通过使用虚拟扫描对象模型选择扫描区域。根据扫描区域和扫描协议集之间的预设相关性，对应于所选扫描区域设置默认扫描协议，以完成扫描协议集的选择。

10. 发明申请

US20180231628A1 METHOD AND APPARATUS FOR MAGNETIC RESONANCE IMAGING PREVIEW AND ESTABLISHING AN MR MODEL 审中-公开
公开(公告)号：US20180231628A1
公开(公告)日：2018-08-16
申请号：US15891784
申请日：2018-02-08
申请人： Siemens Shenzhen Magnetic Resonance Ltd.
发明人： Bin Kuang , Chao Ming He
IPC分类号： G01R33/54 , G06T5/00 , G06T7/00 , G01R33/56 , G01R33/561 , G01R33/565
CPC分类号： G01R33/543 , G01R33/5608 , G01R33/5614 , G01R33/56536 , G06T5/002 , G06T5/009 , G06T7/0012 , G06T2207/10088 , G06T2207/20182 , G06T2207/30024
摘要： In a method and apparatus for magnetic resonance imaging preview and establishing an MR model, an MRI scanner is controlled so as to execute an MR model scan sequence to perform an MRI scan of a designated patient, to obtain an MR model of the patient. One type of scan sequence is sequentially selected from all types of scan sequence supported by the MRI device, and one parameter set is sequentially selected from at least one parameter set supported by this type of scan sequence. The selected sequence and the selected parameter set are used to subject the MR model to a virtual MRI scan, to obtain an MR preview image corresponding to the selected sequence and the selected parameter set for the sequence C. This is repeated for all types of scan sequence supported by the MRI scanner and all parameter sets supported by each type of scan sequence. An MR model of a patient can thereby be established, and MR images of the patient to be previewed quickly, before an MRI scan of the patient is actually begun.

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