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Abstract #1306

Accelerated Carotid Imaging Using Slice GRAPPA (SGRAPPA)

Xinwei Shi1, Xiao Wang2, Feng Huang3, Kui Ying4, Chun Yuan5

1Department of Biomedical Engineering, Tsinghua University, Beijing, China; 2Weldon School of Biomedical Engineering, Purdue University, West Lafayette, IN, United States; 3Philips Healthcare, Gainesville, FL, United States; 4Department of Engineering Physics, Tsinghua University, Beijing, China; 5Department of Radiology, University of Washington, Seattle, WA, United States

In this work, a new method named slice GRAPPA (sGRAPPA) is proposed for accelerating carotid imaging which used to be challenging for traditional fast imaging techniques due to its low SNR in region of interest. sGRAPPA utilizes k-space data correlation in slice dimension as well as phase encoding dimension, and provides better preserved SNR and improved structure similarity than traditionally used GRAPPA in phantom and in-vivo experiments.