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Abstract #3851

Improved CAIPIRINHA for Simultaneous Multislice Imaging Using Total Variation Regularization

Song Gao1 and Yajun Ma1

1Medical Physics Department, Peking University, Beijing, People's Republic of China

The CAIPIRINHA (Controlled Aliasing in Parallel Imaging Results in Higher Acceleration), proposed for simultaneous multislice imaging, combines the multiband excitation and phase cycling techniques to reduce scan time and improve the subsequent imaging reconstruction.The total variation (TV) regularization uses an edge-preserving prior which imposes a relationship between neighboring pixels for image reconstruction. In this work, the TV regularization method is applied to further improve the CAIPIRINHA. In vivo data results demonstrate that the TV regularization is very powerful in suppressing noise, maintaining fine imaging details and reducing aliasing artifacts.

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