Artifact reduction in SSFP MRI using weighted sum of...

Details Artifact reduction in SSFP MRI using weighted sum of... Artifact reduction in SSFP MRI using weighted sum of...

2005-06-14

2005-06-14

Shrivastav, Brij B. (Department: 2859)

Electricity: measuring and testing

Particle precession resonance

Using a nuclear resonance spectrometer system

C324S307000

Reexamination Certificate

active

06906516

ABSTRACT:
Artifact reduction in steady state free precession magnetic resonance imaging uses weighting of acquired image data to emphasize higher signals and then establishing an image signal based on the combined weighted signals. In one embodiment, a SSFP imaging sequence uses phase cycling and acquired image data is squared with the squared data then combined. The final image signal is based on the square root of the squared data.

REFERENCES:
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patent: 6307368 (2001-10-01), Vasanawala et al.
patent: 6624630 (2003-09-01), Foxall
Vasanawala et al., “Linear Combination Steady-State Free Precession MRI,” Magnetic Resonance in Medicine 43: pp. 82-90, (2000).
Bangerter et al., “General Framework for the SNR Analysis of Multiple-Acquisition SSFP,” Proceedings of 11thAnnual ISMRM, Jul. 10-16, 2003, p. 976.

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