公开(公告)号：US12076111B2

公开(公告)日：2024-09-03

申请号：US17896221

申请日：2022-08-26

申请人： Siemens Healthineers AG ,  Guy's & St. Thomas' NHS Foundation Trust

发明人： Peter Speier ,  Peter Gatehouse

IPC分类号： A61B5/00 ,  G01R33/563 ,  G01R33/567

CPC分类号： A61B5/0044 ,  A61B5/7285 ,  G01R33/56325 ,  G01R33/5673 ,  G01R33/5676

摘要： A method for adapting, per cardiac cycle, the parameters governing interpolation of varying and non-interpolation of fixed fractions of each individual cardiac cycle is provided. A time series of data values associated with a cardiac cycle is received, and the time series is scaled to a reference cardiac cycle, wherein the scaling includes applying a model to the time series to generate a scaled time series of data values associated with the first cardiac cycle. The model is trained using the scaled time series.

公开(公告)号：US20240329172A1

公开(公告)日：2024-10-03

申请号：US18611035

申请日：2024-03-20

申请人： Siemens Healthineers AG

发明人： Peter Speier ,  Jan Bollenbeck ,  Mario Bacher

IPC分类号： G01R33/54

CPC分类号： G01R33/54

摘要： A method for detection of a number of pilot tone signals, a magnetic resonance apparatus, and a computer program product are disclosed. The method includes receiving receive signals according to an MR sequence by an RF receive unit of an MR apparatus, wherein the receive signals include an MR signal and the number of PT signals. The number of PT signals each have a different pilot tone frequency. The number of PT signals are received according to the MR sequence in a number of PT receive time segments having a duration of at least tm, interrupted by pauses. The method further includes digitizing the receive signals by sampling with a first sampling frequency f1 and detecting the number of PT signals from the digitized receive signals by sampling the digitized receive signals with a second sampling frequency f2, wherein the second sampling frequency f2≥2/tm.

公开(公告)号：US20240310466A1

公开(公告)日：2024-09-19

申请号：US18606507

申请日：2024-03-15

申请人： Siemens Healthineers AG

发明人： Johann Sukkau ,  Mario Bacher ,  Peter Speier

IPC分类号： G01R33/58 ,  G01R33/565

CPC分类号： G01R33/58 ,  G01R33/56509

摘要： A method for calibrating a motion detection method, to a local coil, a magnetic resonance apparatus and a computer program product. The motion detection method is configured for detecting motion of an object under examination during a magnetic resonance measurement by a magnetic resonance apparatus. First motion data of the object under examination is acquired in a capture period in accordance with the motion detection method. In addition, second motion data of the object under examination is acquired in the capture period in accordance with at least one other motion detection method. The motion detection method is calibrated using the first motion data and the second motion data.

公开(公告)号：US11982727B2

公开(公告)日：2024-05-14

申请号：US17897893

申请日：2022-08-29

申请人： Siemens Healthineers AG

发明人： Jan Bollenbeck ,  Peter Speier ,  Mario Bacher

IPC分类号： G01R33/565 ,  A61B5/055 ,  G01R33/36 ,  G01R33/567

CPC分类号： G01R33/56509 ,  A61B5/055 ,  G01R33/3692 ,  G01R33/5673 ,  G01R33/3621

摘要： A pilot tone signal generator, a magnetic resonance tomograph, a method for transmission of a synchronization signal, and a computer program product are disclosed. The pilot tone signal generator includes a receive unit for receipt of a synchronization signal of a system control unit of a magnetic resonance tomograph. The synchronization signal may include a clock signal, and the pilot tone signal generator is configured to emit a pilot tone signal as a function of the synchronization signal.