Bir-4-s2 adiabatic rf pulses, use therefor and method of...

Details Bir-4-s2 adiabatic rf pulses, use therefor and method of... Bir-4-s2 adiabatic rf pulses, use therefor and method of...

G - Physics

01

R

G01R 33/32 (2006.01) G01N 24/08 (2006.01) G01R 33/48 (2006.01)

Patent

CA 2276603

Adiabatic RF pulses are very useful in MRI when precise flip angles are needed. Unfortunately, adiabatic pulses suffer from a long application time and a high SAR. In this article, we introduce a new concept to modify the usual adiabatic pulse into a "pseudo-adiabatic" pulse having a shorter application time and lower SAR. For example, a BIR-4 of 32 ms of application time and a relative SAR of 20 will be transformed into a BIR-4-S1 of 1 ms and relative SAR of 1. The new pulse obtained stays insensitive for a large B1 range but loses its slice selectivity to become a 3D pulse. Experimental results are presented to illustrate the sensitivity to B1 and B0.

Affiliated with

Also associated with

Rating

Bir-4-s2 adiabatic rf pulses, use therefor and method of... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Bir-4-s2 adiabatic rf pulses, use therefor and method of..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Bir-4-s2 adiabatic rf pulses, use therefor and method of... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1522415