- 专利标题： ASSIGNMENT OF MR IMAGES TO CARDIAC PHASES
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申请号： EP21194084.6申请日： 2021-08-31
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公开(公告)号： EP4141465A1公开(公告)日： 2023-03-01
- 发明人: Gatehouse, Peter , Speier, Peter
- 申请人： Siemens Healthcare GmbH , Guy's & St Thomas' NHS Foundation Trust
- 申请人地址： DE 91052 Erlangen Henkestraße 127; GB London SE1 9RT Counting House, Guy's Hospital Great Maze Pond
- 主分类号： G01R33/563
- IPC分类号： G01R33/563 ; G01R33/567
摘要：
The invention relates to a method for assigning MR images of a heart obtained at a plurality of cardiac cycles to different cardiac phases of the cardiac cycles. The method comprises:
- determining a heart beat signal during acquisition of the MR images obtained at the plurality of cardiac cycles,
- determining at least one physiological parameter of the heart during acquisition of the MR images obtained at the plurality of cardiac cycles
- determining a model for the cardiac cycle including determining, in each of the cardiac cycles, a variable time interval (50) of variable duration, and at least one additional time interval (60) with a lower variability in duration than the variable time interval, based on the heart beat signal and the at least one physiological parameter,
- determining a duration of the variable time interval (50) and the length of the cardiac cycle for each of the cardiac cycles based on the heart beat signal and the at least one physiological parameter,
- assigning the MR images to the different cardiac phases taking into account the duration of the variable time interval and cardiac cycle in each of the cardiac cycles.
- determining a heart beat signal during acquisition of the MR images obtained at the plurality of cardiac cycles,
- determining at least one physiological parameter of the heart during acquisition of the MR images obtained at the plurality of cardiac cycles
- determining a model for the cardiac cycle including determining, in each of the cardiac cycles, a variable time interval (50) of variable duration, and at least one additional time interval (60) with a lower variability in duration than the variable time interval, based on the heart beat signal and the at least one physiological parameter,
- determining a duration of the variable time interval (50) and the length of the cardiac cycle for each of the cardiac cycles based on the heart beat signal and the at least one physiological parameter,
- assigning the MR images to the different cardiac phases taking into account the duration of the variable time interval and cardiac cycle in each of the cardiac cycles.
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