公开(公告)号：US20170234957A1

公开(公告)日：2017-08-17

申请号：US15390129

申请日：2016-12-23

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sang-young ZHO ,  Dae-ho LEE

IPC: G01R33/565 ,  G01R33/44 ,  G01R33/561 ,  G01R33/48

CPC classification number: G01R33/56545 ,  G01R33/443 ,  G01R33/4818 ,  G01R33/482 ,  G01R33/5611 ,  G01R33/5615 ,  G01R33/5616 ,  G01R33/56554 ,  G01R33/56563

Abstract: A magnetic resonance imaging (MRI) apparatus for obtaining a magnetic resonance (MR) image, based on a multi-echo sequence, and a method of the MRI apparatus are provided. The MRI apparatus includes a data obtainer configured to obtain first echo data, based on an echo that is generated at a first echo time, and obtain second echo data, based on an echo that is generated at a second echo time later than the first echo time, the first echo data including a part overlapping a part included in the second echo data in a k-space. The MRI apparatus further includes an image processor configured to reconstruct the MR image, based on the first echo data and the second echo data.

公开(公告)号：US20170082715A1

公开(公告)日：2017-03-23

申请号：US15227359

申请日：2016-08-03

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Joon-sung CHOI ,  Dae-ho LEE ,  Sang-young ZHO

IPC: G01R33/563 ,  A61B5/02 ,  A61B5/026 ,  A61B5/055

CPC classification number: G01R33/5635 ,  A61B5/02007 ,  A61B5/026 ,  A61B5/0555 ,  G01R33/4835 ,  G01R33/4838 ,  G01R33/561 ,  G01R33/56308

Abstract: A method, which is performed by an MRI apparatus, of scanning a blood vessel, includes: sequentially applying, according to a time-of-flight (TOF) method, radio frequency (RF) pulses respectively to first grouped slabs during a first repetition time (TR); sequentially acquiring MR signals respectively corresponding to the RF pulses applied during the first TR; sequentially applying, according to the TOF method, RF pulses respectively to second grouped slabs during a second TR; and sequentially acquiring MR signals respectively corresponding to the RF pulses applied during the second TR.