-
公开(公告)号：US10048334B2
公开(公告)日：2018-08-14
申请号：US13916967
申请日：2013-06-13
发明人： Dominik Paul
IPC分类号： G01R33/38 , G01R33/565 , G01R33/48 , G01R33/561
摘要： A test method for a reordering algorithm of a 3D spin echo magnetic resonance pulse sequence is provided, in which echo train positions are checked for at least two k-space elements. Further, a non-transitory computer readable medium and a magnetic resonance tomography system which comprises a test device for testing a reordering algorithm of a 3D spin echo magnetic resonance pulse sequence featuring a checking module for checking the echo train position for at least two k-space elements are provided.
-
公开(公告)号：US20180088199A1
公开(公告)日：2018-03-29
申请号：US15718308
申请日：2017-09-28
发明人： Wilhelm Horger , Dominik Paul
CPC分类号： G01R33/5608 , A61B5/004 , A61B5/055 , A61B5/4255 , A61B2576/02 , G01R33/34084 , G01R33/3415 , G01R33/5659 , G06T5/003 , G06T5/50 , G06T11/60 , G06T2207/10068 , G06T2207/10088 , G06T2207/20221
摘要： In a method and magnetic resonance (MR) apparatus for generating a combined MR image of an examination object, a first image data record of an examination object, generated from magnetic resonance data recorded with a first reception coil, is loaded into a computer. A second image data record of the examination object, generated from magnetic resonance data recorded with a second reception coil, wherein the first and the second reception coils are different reception coils, is also loaded into a computer. At least one interim image data record is generated by the computer by applying a mask function to the first and/or second image data record. An interim image data record is combined in the computer with the image data record to which no mask function was applied, or with the other interim image data record, to form a combined MR image.
-
公开(公告)号：US20180074147A1
公开(公告)日：2018-03-15
申请号：US15262233
申请日：2016-09-12
发明人： Flavio Carinci , Dominik Paul , Himanshu Bhat , Mario Zeller
IPC分类号： G01R33/483 , G01R33/561 , G01R33/385
CPC分类号： G01R33/4835 , G01R33/3852 , G01R33/5611 , G01R33/5617
摘要： In a method and apparatus for acquiring magnetic resonance (MR) data, an MR data acquisition scanner is operated, while a subject is situated therein to execute a simultaneous multislice (SMS) turbo spin echo (TSE) sequence by implementing a TSE-based reference scan to acquire reference data and an imaging scan, to acquire raw MR data from the subject. The reference data and the raw MR data are entered into a memory organized as k-space. A computer accesses the memory in order to make the k-space data, composed of said reference data and said image data, available in electronic form, as at least one data file.
-
74.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.
-
公开(公告)号：US20170261587A1
公开(公告)日：2017-09-14
申请号：US15456838
申请日：2017-03-13
发明人： Flavio Carinci , Dominik Paul
CPC分类号： G01R33/5607 , G01R33/543 , G01R33/5602 , G01R33/5608
摘要： In a method and apparatus for recording magnetic resonance (MR) data of a target region of a subject, the recording process is divided into subsections each follow the other after a repetition time. Before each recording of MR data of a subsection with a measurement sequence, an adiabatic preparatory pulse is activated that inverts the longitudinal magnetization of a saturation molecule type, from which no MR data are to be recorded. An excitation pulse is emitted spaced by an inversion time from the preparatory pulse. Before the first preparatory pulse, at least one adiabatic preparation pulse is emitted that inverts the longitudinal magnetization with a timing such that the longitudinal magnetization of the saturation molecule type at the time of the first preparatory pulse at a steady state value, which occurs again before the repetition time after each preparatory pulse.
-
公开(公告)号：US20220317217A1
公开(公告)日：2022-10-06
申请号：US17708138
申请日：2022-03-30
发明人： Flavio Carinci , Mario Zeller , Dominik Paul
IPC分类号： G01R33/54 , G01R33/483
摘要： The disclosure relates to techniques for an improved recording of scan data, which can be recorded from at least two slices of an examination object simultaneously by means of a magnetic resonance system. The technique includes selecting a desired simultaneous recording of scan data from at least two slices (S1, Sn), determining an artifact-preventing minimum RF pulse duration (dRF) for a desired recording, considering desired recording parameters (PA), and performing the desired recording using the determined minimum RF pulse duration.
-
公开(公告)号：US20220313104A1
公开(公告)日：2022-10-06
申请号：US17708111
申请日：2022-03-30
发明人： Flavio Carinci , Mario Zeller , Dominik Paul
IPC分类号： A61B5/055 , G01R33/483 , G01R33/565
摘要： The disclosure relates to techniques for acquiring measured data that has been recorded simultaneously via a magnetic resonance facility from at least two slices from an examination object comprising at least two different spin types. The techniques includes selecting a desired simultaneous recording of measured data from at least two slices in which during recording phases that generate field of view shifts have been imprinted, selecting a compensation factor to compensate for interference signals caused by the different spin types, determining a compensation phase for the phases to be imprinted in the desired recording as a function of the compensation factor, and carrying out the desired recording of measured data and/or reconstruction of image data from the measured data by applying the compensation phase that has been determined to the respective phases to be imprinted.
-
公开(公告)号：US20220268868A1
公开(公告)日：2022-08-25
申请号：US17678665
申请日：2022-02-23
发明人： Flavio Carinci , Dominik Paul
IPC分类号： G01R33/563 , G01R33/56 , G01R33/561 , G01R33/483
摘要： A method for correcting TOF MR data, including providing a coil sensitivity map for an examination region of an examination object, providing the TOF MR data of the examination region, and generating corrected TOF MR image data comprising multiplying the TOF MR data by an inverse of the coil sensitivity map.
-
公开(公告)号：US11353534B2
公开(公告)日：2022-06-07
申请号：US16950895
申请日：2020-11-17
IPC分类号： G01V3/00 , G01R33/565 , G01R33/561 , G01R33/56
摘要： A method for acquiring a magnetic resonance data set of an object under examination by a magnetic resonance system using a scan sequence is provided. The scan sequence includes a succession of sequence blocks, and in each sequence block, there is at least one sub-block including an excitation section and/or a detection section. An excitation section includes at least one excitation pulse, and in a detection section, an echo signal or an echo train is acquired as a scan signal. At least one item of motion information is provided for each sub-block. The motion information contains information about a movement of the object under examination within a duration of the sub-block. Some of the sub-blocks are automatically repeated. At least the sub-blocks having motion information that exceeds a threshold value are repeated. The threshold value defines a motion amplitude.
-
公开(公告)号：US11300641B2
公开(公告)日：2022-04-12
申请号：US17075917
申请日：2020-10-21
发明人： Dominik Paul
摘要： A system and method for performing a measuring sequence by a magnetic resonance device for examining a patient is provided. The performance of the measuring sequence includes a processing of segments. If at least one determined patient load value exceeds a predetermined limit value, the processing of the measuring sequence for the time frame of exceeding the patient load value is interrupted. The determination of the at least one patient load value includes a detection of a movement of a patient into a changed pose, an adjustment of at least one following segment to the changed pose of the patient, and a determination of at least one patient load value for the adjusted at least one following segment.
-
-
-
-
-
-
-
-
-
搜索结果
138 条记录 (耗时 0.025 秒)