公开(公告)号：US20230023393A1

公开(公告)日：2023-01-26

申请号：US17788340

申请日：2020-12-23

申请人： The Brigham and Women's Hospital, Inc.

发明人： David SILBERSWEIG ,  Emily STERN ,  Hong PAN ,  Qiang CHEN

IPC分类号： G01R33/48 ,  G01R33/565

摘要： A system and method is provided for controlling physiological-noise in functional magnetic resonance imaging using raw k-space data to extract physiological noise effects. The method can identify these effects when they are separable and directly reflects the artefactual effects on fMRI data, without the need for external monitoring or recording devices and to be compensated for via rigorous statistical analysis modeling of such noise sources. The physiological fluctuations may be treated as global perturbations presented around the origin point in a k-space 2D slice. Each k-space 2D slice may be acquired at a very short repetition time with an effective sampling rate to sample cardiac and respiratory rhythms through proper reordering and phase-unwarping techniques applied to the raw k-space data.