Regularized variable density SENSE

Electricity: measuring and testing – Particle precession resonance – Using a nuclear resonance spectrometer system

Reexamination Certificate

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C324S307000

Reexamination Certificate

active

07403005

ABSTRACT:
A magnetic resonance imaging apparatus includes a plurality of radio frequency coils (34) that acquire variable density sensitivity encoded data that is undersampled at least away from the center of k-space. A reconstruction processor (52) for each coil reconstructs: a regularization image reconstructed from a higher density portion of the variable density sensitivity encoded data disposed at or near a center of k-space acquired by that coil; and a folded image reconstructed from the variable density sensitivity encoded data acquired by that coil. An unfolding processor (66) unfolds the folded images. The unfolding is regularized by the regularization images.

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Katscher, U., et al.; Underdetermined SENSE using a-priori knowledge; 2002; Proc. Intl. Soc. Mag. Reson. Med. 10; pp. 2396.
Katscher, U., Underdetermined variable density SENSE; 2003; Proc. Intl. Soc. Mag. Reson. Med. 11; pp. 2342.
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Yeh, E. N., et al.; Self-Calibrated Spiral Parallel Imaging; 2002; Proc. Intl. Soc. Mag. Reson. Med.; 10.

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