Dynamic pMRI using GRAPPA-operator with under-sampled time...

Details Dynamic pMRI using GRAPPA-operator with under-sampled time... Dynamic pMRI using GRAPPA-operator with under-sampled time...

2011-01-04

2011-01-04

Shrivastav, Brij B. (Department: 2831)

Electricity: measuring and testing

Particle precession resonance

Using a nuclear resonance spectrometer system

C324S309000, C324S318000

Reexamination Certificate

active

07863893

ABSTRACT:
Example systems, methods, and apparatus facilitate providing a k-space line that is missing in an under-sampled time frame. The missing line is computed by applying a GRAPPA-operator to a known k-space line in the under-sampled time frame. One example method includes controlling a dynamic parallel magnetic resonance imaging (DpMRI) apparatus to acquire a first under-sampled time interleaved frame having at least one first k-space line and controlling the DpMRI apparatus to acquire a second under-sampled time interleaved frame having at least one second k-space line that neighbors the first k-space line. The method includes assembling a reference data set from the first under-sampled time frame and the second under-sampled time frame and then determining the GRAPPA-operator from neighboring k-space lines in the reference data set.

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