Title:
FAT-WATER SEPARATING MAGNETIC RESONANCE IMAGING METHOD AND SYSTEM USING STEADY FREE PRECESSION MOTION
Document Type and Number:
Japanese Patent JP2005205206
Kind Code:
A
Abstract:
To provide a separation image of clearing a frequency artifact by nonuniformity of a magnetostatic field, in imaging a water-fat separation image using an SSFP sequence in medium-low magnetic field MRI.
A magnetic resonance (MR) image is made by selecting water and fat of a balanced state of steady free precession motion (SSFP). An acquired SSFP signal is separated into a multiple echo component. In this multiple echo component, phase arrangement between a water signal and a fat signal is controlled by properly selecting TR and TE values of an SSFP imaging sequence. Influence of nonuniformity of the field is corrected from this separated echo component, and a water image and a fat image are selected.
Inventors:
ZHANG WEIGUO
Application Number:
JP2005004341A
Publication Date:
August 04, 2005
Filing Date:
January 11, 2005
Export Citation:
Assignee:
TOSHIBA AMERICA MRI INC
International Classes:
G01R33/48; A61B5/055; G01R33/54; G01R33/561; (IPC1-7): A61B5/055; G01R33/48
Attorney, Agent or Firm:
Takehiko Suzue
Sadao Muramatsu
Ryo Hashimoto
Sadao Muramatsu
Ryo Hashimoto