Arterial spin labeling with pulsed radio frequency sequences

Details Arterial spin labeling with pulsed radio frequency sequences Arterial spin labeling with pulsed radio frequency sequences

2006-11-01

2009-06-09

Shrivastav, Brij B. (Department: 2831)

Electricity: measuring and testing

Particle precession resonance

Determine fluid flow rate

C600S419000

Reexamination Certificate

active

07545142

ABSTRACT:
In one aspect, a method for imaging fluid flow and/or perfusion using spin labeling is provided. The method comprises applying a first magnetic gradient sequence at least to a labeling region, applying a first pulsed radio frequency (RF) sequence to the labeling region to label the fluid, the first pulsed RF sequence comprising a first plurality of pulses wherein an amplitude envelope is non-zero, the first plurality of pulses each separated by a respective first plurality of intervals wherein the amplitude envelope is substantially zero, and acquiring at least one first signal emitted from an imaging region a predetermined delay after applying the first pulsed RF sequence.

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