公开(公告)号：US20250147133A1

公开(公告)日：2025-05-08

申请号：US18904060

申请日：2024-10-01

Applicant: CANON MEDICAL SYSTEMS CORPORATION

Inventor： Masahiro ABE ,  Shohei HAMANAGA ,  Mitsuhiro BEKKU

IPC: G01R33/48 ,  G01R33/565

Abstract: In one embodiment, a phase correction method comprising: acquiring first k-space data acquired in a first readout direction and second k-space data acquired in a second readout direction that is opposite to the first readout direction; weighting first real space data obtained from the first k-space data to generate first adjusted data with a predetermined weighting in which weight coefficients vary depending on a pixel position in a readout direction and become lower in a region where a variance of a phase difference is larger than a predetermined variance; weighting second real space data obtained from the second k-space data to generate second adjusted data with the predetermined weighting; calculating a correction amount for correcting a phase difference; and correcting a phase difference between data that are different from each other in polarity of a gradient pulse in the readout direction during acquisition, by using the correction amount.