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公开(公告)号：US10928466B2
公开(公告)日：2021-02-23
申请号：US15591451
申请日：2017-05-10
发明人： Wolfgang Bielmeier , Gerhard Brinker , Swen Campagna , Bernd Erbe , Matthias Gebhardt , Juergen Nistler , Dominik Paul , Carsten Prinz , Gudrun Ruyters , Stephan Stoecker , Markus Vester
摘要： In a magnetic resonance apparatus and a method for operation thereof, at least one electrical operating value of at least one predetermined component of the apparatus is captured and, as a function of the at least one operating value, at least one coil operating value of a transmitting coil arrangement of the magnetic resonance apparatus is controlled for the purpose of limiting a B1 value.
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公开(公告)号：US10677864B2
公开(公告)日：2020-06-09
申请号：US15941201
申请日：2018-03-30
发明人： Hou Quan Lin , Ying Lun Wang , Wen Ming Li , JianMin Wang , Juergen Nistler
摘要： A tuning/detuning structure and a detuning method for an RF coil use an RF power source, a first impedance circuit, a first RF line, and a first port having a first guide leg end and a first input end, with the first guide leg end being connected to a first end ring capacitance of the RF coil. When the RF coil needs to be detuned, the first input end is connected to the first impedance circuit via the first RF line. When the RF coil needs to transmit an RF pulse signal, the first input end is connected to the RF power source via the first RF line. The need for a switch element is thereby reduced as is harm resulting from breakdown of such a switch element. An impedance circuit can be combined with a switch element to realize detuning jointly, and a good detuning effect can be achieved by a small number of switch elements.
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3.发明申请公开(公告)号：US20170328966A1
公开(公告)日：2017-11-16
申请号：US15591451
申请日：2017-05-10
发明人： Wolfgang Bielmeier , Gerhard Brinker , Swen Campagna , Bernd Erbe , Matthias Gebhardt , Juergen Nistler , Dominik Paul , Carsten Prinz , Gudrun Ruyters , Stephan Stoecker , Markus Vester
CPC分类号： G01R33/288 , G01R33/3607 , G01R33/543
摘要： In a magnetic resonance apparatus and a method for operation thereof, at least one electrical operating value of at least one predetermined component of the apparatus is captured and, as a function of the at least one operating value, at least one coil operating value of a transmitting coil arrangement of the magnetic resonance apparatus is controlled for the purpose of limiting a B1 value.
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公开(公告)号：US10481225B2
公开(公告)日：2019-11-19
申请号：US15086851
申请日：2016-03-31
发明人： Juergen Nistler , Yu Tang , JianMin Wang , Zhi Gen Yang
摘要： In a method and device for checking a body coil of an MRI system a current value of one or more parameters of the MRI system is acquired under a specific condition. The current value is compared with a reference value of the parameter to obtain a comparison result. A state of the body coil is determined according to the comparison result. The method for checking a body coil of an MRI system according to a particular embodiment of the present invention can replace onsite periodic maintenance inspection by a maintenance engineer, and also detect damage to the body coil at an early stage.
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公开(公告)号：US20180284203A1
公开(公告)日：2018-10-04
申请号：US15941201
申请日：2018-03-30
发明人： Hou Quan Lin , Ying Lun Wang , Wen Ming Li , JianMin Wang , Juergen Nistler
CPC分类号： G01R33/3628 , G01R33/34076 , G01R33/3657 , H03H1/0007
摘要： A tuning/detuning structure and a detuning method for an RF coil use an RF power source, a first impedance circuit, a first RF line, and a first port having a first guide leg end and a first input end, with the first guide leg end being connected to a first end ring capacitance of the RF coil. When the RF coil needs to be detuned, the first input end is connected to the first impedance circuit via the first RF line. When the RF coil needs to transmit an RF pulse signal, the first input end is connected to the RF power source via the first RF line. The need for a switch element is thereby reduced as is harm resulting from breakdown of such a switch element. An impedance circuit can be combined with a switch element to realize detuning jointly, and a good detuning effect can be achieved by a small number of switch elements.
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6.发明申请METHOD AND DEVICE FOR CHECKING BODY COIL OF MAGNETIC RESONANCE IMAGING SYSTEM 审中-公开用于检查磁共振成像系统的体线的方法和装置公开(公告)号：US20160291101A1
公开(公告)日：2016-10-06
申请号：US15086851
申请日：2016-03-31
发明人： Juergen Nistler , Yu Tang , JianMin Wang , Zhi Gen Yang
IPC分类号： G01R33/36 , G01R33/58 , G01R33/341
CPC分类号： G01R33/36 , G01R33/34046
摘要： In a method and device for checking a body coil of an MRI system a current value of one or more parameters of the MRI system is acquired under a specific condition. The current value is compared with a reference value of the parameter to obtain a comparison result. A state of the body coil is determined according to the comparison result. The method for checking a body coil of an MRI system according to a particular embodiment of the present invention can replace onsite periodic maintenance inspection by a maintenance engineer, and also detect damage to the body coil at an early stage.
摘要翻译： 在用于检查MRI系统的身体线圈的方法和装置中，在特定条件下获取MRI系统的一个或多个参数的当前值。 将当前值与参数的参考值进行比较以获得比较结果。 根据比较结果确定身体线圈的状态。 根据本发明的特定实施例的用于检查MRI系统的身体线圈的方法可以由维护工程师代替现场定期维护检查，并且还可以在早期阶段检测身体线圈的损坏。
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公开(公告)号：US10288710B2
公开(公告)日：2019-05-14
申请号：US15499170
申请日：2017-04-27
发明人： Wolfgang Bielmeier , Gerhard Brinker , Swen Campagna , Nikolaus Demharter , Bernd Erbe , Matthias Gebhardt , Juergen Nistler , Dominik Paul , Carsten Prinz , Gudrun Ruyters , Stephan Stoecker , Markus Vester
IPC分类号： G01V3/00 , G01R33/54 , G01R33/36 , G01R33/385
摘要： In a magnetic resonance (MR) apparatus and an operating method therefor, a sequence with which the MR data are to be recorded is created in or provided to a control computer of the MR apparatus. A maximum RF output and a maximum gradient performance of the scanner magnetic resonance apparatus during the performance of the sequence are determined by simulating or analyzing the performance of the sequence in the control computer, and it is verified whether the maximum RF output and/or the maximum gradient performance violate predetermined limit values. Execution of the sequence to record the MR data is performed only if the verification showed that the limit values are not violated.
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8.发明申请公开(公告)号：US20170315195A1
公开(公告)日：2017-11-02
申请号：US15499170
申请日：2017-04-27
发明人： Wolfgang Bielmeier , Gerhard Brinker , Swen Campagna , Nikolaus Demharter , Bernd Erbe , Matthias Gebhardt , Juergen Nistler , Dominik Paul , Carsten Prinz , Gudrun Ruyters , Stephan Stoecker , Markus Vester
IPC分类号： G01R33/54 , G01R33/385 , G01R33/36
CPC分类号： G01R33/543 , G01R33/36 , G01R33/385
摘要： In a magnetic resonance (MR) apparatus and an operating method therefor, a sequence with which the MR data are to be recorded is created in or provided to a control computer of the MR apparatus. A maximum RF output and a maximum gradient performance of the scanner magnetic resonance apparatus during the performance of the sequence are determined by simulating or analyzing the performance of the sequence in the control computer, and it is verified whether the maximum RF output and/or the maximum gradient performance violate predetermined limit values. Execution of the sequence to record the MR data is performed only if the verification showed that the limit values are not violated.
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