Abstract #1834

Comparison between MPRAGE GRAPPA 2×1 with MPRAGE Wave-CAIPI 3×3

Azusa Sakurama¹, Yasutaka Fushimi¹, Satoshi Nakajima¹, Yusuke Yokota¹, Sonoko Oshima¹, Sayo Otani¹, Krishna Pandu Wicaksono¹, Tomohisa Okada², Wei Liu³, and Kaori Togashi¹

¹Department of Diagnostic Imaging and Nuclear Medicine, Kyoto University Graduate School of Medicine, Kyoto, Japan, ²Human Brain Research Center, Kyoto University Graduate School of Medicine, Kyoto, Japan, ³Siemens Healthineers AG, Shenzhen, China

This comparison study between MPRAGE with GRAPPA and MPRAGE with Wave-CAIPI has been performed at the clinical MR scanner. MPRAGE with Wave-CAIPI 3×3 shows relatively good contrast despite its short scan time of 1 m 42 s. No segmentation error was found in MPRAGE with Wave-CAIPI 3×3 in our cohort. The correlation of cerebral cortex and cerebral white matter was very high between 2 MPRAGEs. In deep gray matters except pallidum and hippocampus, the correlation of VOIs were also high. These results suggest that volumes derived from automated segmentation of MPRAGE with Wave-CAIPI are reliable measures.

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