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1.发明申请公开(公告)号：US20190310337A1
公开(公告)日：2019-10-10
申请号：US16376249
申请日：2019-04-05
摘要： In a pulse sequence that is produced and used for controlling a magnetic resonance imaging system as part of an inversion recovery measurement sequence, a number of partial volumes to be imaged are excited, wherein the pulse sequence includes a start sequence followed by an excitation sequence. The start sequence is series arrangement of a succession of at least two initial inversion pulses for inverting partial volumes. The excitation sequence is series arrangement of excitation blocks and additional inversion pulses, with each excitation block being followed by additional inversion pulses, so that excitation blocks and additional inversion pulses always alternate.
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公开(公告)号：US10401460B2
公开(公告)日：2019-09-03
申请号：US15442729
申请日：2017-02-27
IPC分类号： G01R33/561 , G01R33/565 , G01R33/44
摘要： In a method and apparatus for recording a magnetic resonance dataset of a volume of interest of an object, at least one gradient moment is calculated as a function of at least one jump in susceptibility that is present in the volume of interest, between two sections of the volume of interest. An excitation pulse is radiated and at least one compensation moment is activated in a part volume of the volume of interest, for the at least partial compensation of a gradient moment caused by the jump in susceptibility. The signal generated by the excitation pulse is read out.
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公开(公告)号：US20170248672A1
公开(公告)日：2017-08-31
申请号：US15442729
申请日：2017-02-27
IPC分类号： G01R33/565 , G01R33/44 , G01R33/561
CPC分类号： G01R33/56536 , G01R33/443 , G01R33/5616
摘要： In a method and apparatus for recording a magnetic resonance dataset of a volume of interest of an object, at least one gradient moment is calculated as a function of at least one jump in susceptibility that is present in the volume of interest, between two sections of the volume of interest. An excitation pulse is radiated and at least one compensation moment is activated in a part volume of the volume of interest, for the at least partial compensation of a gradient moment caused by the jump in susceptibility. The signal generated by the excitation pulse is read out.
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公开(公告)号：US11099250B2
公开(公告)日：2021-08-24
申请号：US16213110
申请日：2018-12-07
IPC分类号： G01R33/60 , G01R33/54 , G01R33/483 , G01R33/565 , G01R33/56 , G01R33/485 , G01R33/561
摘要： In a method and apparatus for generating a magnetic resonance data record, at least two excitation cycles are executed, wherein, in each excitation cycle, at least one magnetic resonance signal is recorded, using different phases with a first radio-frequency pulse in two consecutive excitation cycles, with at least one dephasing gradient being applied in an excitation cycle.
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公开(公告)号：US10379187B2
公开(公告)日：2019-08-13
申请号：US15408470
申请日：2017-01-18
摘要： In order to enable improved analysis of a magnetic resonance sequence, which provides a number of radio-frequency pulses for the acquisition of magnetic resonance measurement data of an object undergoing investigation by a magnetic resonance apparatus, the magnetic resonance sequence is provided to a computer and a first average radio-frequency output that is present during a first time window of the magnetic resonance sequence is determined. A second average radio-frequency output that is present during a second time window of the magnetic resonance sequence is determined. A value derived from the first average radio-frequency output and the second average radio-frequency output is provided from the computer.
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公开(公告)号：US11478197B2
公开(公告)日：2022-10-25
申请号：US16142695
申请日：2018-09-26
摘要： A medical imaging apparatus, and a sensor arrangement for acquiring at least one item of patient movement information during a medical imaging examination, have at least one sensor element and a support apparatus, with the at least one sensor element arranged on the support apparatus. The support apparatus has a positioning element for positioning the support apparatus and at least one strut-like support element on which the at least one sensor element is removably arranged.
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公开(公告)号：US10275875B2
公开(公告)日：2019-04-30
申请号：US15092843
申请日：2016-04-07
发明人： Himanshu Bhat , Thorsten Feiweier , Tobias Kober , Carsten Prinz , Daniel Nico Splitthoff , Stephan Stoecker
IPC分类号： G06T7/00 , G01R33/565 , G06T7/20 , H04N5/232 , H04N5/357 , G06T7/80 , A61B5/055 , A61B8/08 , A61B6/00 , G01R33/54
摘要： A method for automatically and dynamically optimizing image acquisition parameters/commands of an imaging procedure performed by a medical imaging apparatus in order to mitigate or cancel dynamic effects perturbing the image acquisition process of an object to be imaged by the medical imaging apparatus. The method includes connecting a dynamic correction module (DCM) to the medical imaging apparatus, automatically acquiring by the DCM image acquisition parameters/commands and data about dynamic changes or effects, and automatically determining in real time, by the DCM, at least one new image acquisition parameter/command from the image acquisition parameters/commands defined in the imaging control system and the dynamic change data, while the image acquisition parameter/command defined in the imaging control system remains unchanged. The method further includes automatically providing, by the DCM, the new image acquisition parameter/command to the hardware control system.
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8.发明申请公开(公告)号：US20170356975A1
公开(公告)日：2017-12-14
申请号：US15616980
申请日：2017-06-08
CPC分类号： G01R33/543 , G01R33/3607 , G01R33/546 , G01R33/5608 , G01R33/58
摘要： In a magnetic resonance imaging apparatus and a method for the operation thereof, a diagnostic magnetic resonance imaging sequence is selected in a control computer of the apparatus, and an adjustment parameter for the selected sequence is acquired in the control computer, which is specific to the subject under examination. A limit value for a loading parameter of the subject is specified in the computer, and a parameter range for an imaging parameter of the sequence is determined in the computer on the basis of the acquired adjustment parameter and the specified limit value for the loading parameter. A planning environment for the magnetic resonance imaging of the subject is presented, in which only the determined parameter range can be set for the imaging parameter.
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公开(公告)号：US10768254B2
公开(公告)日：2020-09-08
申请号：US15616980
申请日：2017-06-08
摘要： In a magnetic resonance imaging apparatus and a method for the operation thereof, a diagnostic magnetic resonance imaging sequence is selected in a control computer of the apparatus, and an adjustment parameter for the selected sequence is acquired in the control computer, which is specific to the subject under examination. A limit value for a loading parameter of the subject is specified in the computer, and a parameter range for an imaging parameter of the sequence is determined in the computer on the basis of the acquired adjustment parameter and the specified limit value for the loading parameter. A planning environment for the magnetic resonance imaging of the subject is presented, in which only the determined parameter range can be set for the imaging parameter.
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公开(公告)号：US20190178966A1
公开(公告)日：2019-06-13
申请号：US16213110
申请日：2018-12-07
IPC分类号： G01R33/54 , G01R33/56 , G01R33/561
摘要： In a method and apparatus for generating a magnetic resonance data record, at least two excitation cycles are executed, wherein, in each excitation cycle, at least one magnetic resonance signal is recorded, using different phases with a first radio-frequency pulse in two consecutive excitation cycles, with at least one dephasing gradient being applied in an excitation cycle.
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