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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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