Patent · US Active

System and method for phase relaxed RF pulse design

US8063637B2 · kind B2 · utility

8Cited by
4References
20Claims
0Family size

Assignee

Inventors

Key dates

Filing dateApr 16, 2009
Grant dateNov 22, 2011
Priority date—
Expiry dateDec 20, 2029

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG01R33/5612
  • WIPO fieldMeasurement
  • WIPO sectorInstruments

Abstract

Techniques for designing RF pulses may be configured to produce improved magnitude profiles of the resulting magnetization by relaxing the phase constraint and optimizing the phase profiles. In one embodiment, a spinor-based, optimal control, optimal phase technique may be used to design arbitrary-tip-angle (e.g., large and small tip angle) RF pulses (both parallel transmission and single channel). In another embodiment, small tip angle RF pulses (both parallel transmission and single channel) may be designed using a small-tip-angle (STA) pulse design without phase constraint that is formulated as a parameter optimization problem.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.