MR data acquisition method, MR image construction method, and MRI system
US7365537B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 1, 2005 |
| Grant date | Apr 29, 2008 |
| Priority date | — |
| Expiry date | May 1, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/5613
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An object of the present invention is to acquire data, which is used to construct a water component-enhanced/fat component-suppressed image, with a repetition time TR set to a desired value. Included are a data acquisition unit and an image construction unit. The data acquisition unit acquires data D_φfat according to a steady-state pulse sequence specifying that the phase of an RF pulse is varied in order of 0, 1×φfat, 2×φfat, etc. Herein, φfat=(2−TR/T_out+2×m)×π is established on the assumption that m denotes an integer equal to or larger than 0 and meets TR/(2×T_out)−1<m<TR/(2×T_out) where TR denotes the repetition time and T_out denotes the time during which spins in water and spins in fat are out of phase with each other due to chemical shifts. The image construction unit constructs an MR image Gw using the data D_φfat.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.