Patent · US Active

MR imaging with an RF pulse producing reduced magnetization transfer

US7872475B2 · kind B2 · utility

0Cited by

12References

8Claims

0Family size

Assignee

Catholic Healthcare West, California Nonprofit Public Benefit Corporation · US

Inventor

James Grant Pipe · Peoria, US

Key dates

Filing date	Nov 17, 2009
Grant date	Jan 18, 2011
Priority date	—
Expiry date	Nov 17, 2029

Classification

Technology area (CPC G)Physics
CPC primaryG01R33/56341
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A system and method are provided herein for designing and transmitting RF pulses which cause a reduced off-resonance magnetization transfer saturation. An RF pulse shape may be optimized according to a set of Bloch solutions defining a desired magnetization profile. An RF pulse may be transmitted according to this optimized shape according to a k-space trajectory which traverses a high amplitude portion of the RF pulse more times than one or more low amplitude portions. In addition, a generally alternating slice select gradient may be applied during transmission of the RF pulse.

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