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Abstract #2523

Combining Conjugate and Non-Conjugate Wave Data for Faster Elastography

Roger Grimm 1 , Eric Stinson 1 , and Richard Ehman 1

1 Mayo Clinic, Rochester, MN, United States

Elastography sampling with gradient echo sequences can lead to long scan times. Scan efficiency is limited by gradient heating concerns and the need to synchronize the TR to the period of motion excitation. These inefficiencies can be ameliorated by using a phase advancing TR. This work uses a phase advancing TR and acquires the minimum 7 samples to provide complex sampling of the wave field along all 3 axes. The proposed method uses a half-NEX like reconstruction to combine the conjugate and non-conjugate samples.

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