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Abstract #0166

Simultaneous morphometry and relaxometry of the human brain using three-dimensional MR fingerprinting at 1.5 and 3T

Shohei Fujita1,2, Matteo Cencini3,4, Guido Buonincontri3,4, Naoyuki Takei5, Rolf F. Schulte6, Wataru Uchida1, Akifumi Hagiwara1, Koji Kamagata1, Osamu Abe2, Michela Tosetti3,4, and Shigeki Aoki1
1Department of Radiology, Juntendo University, Tokyo, Japan, 2Department of Radiology, The University of Tokyo, Tokyo, Japan, 3Imago7 Foundation, Pisa, Italy, 4IRCCS Stella Maris, Pisa, Italy, 5MR Applications and Workflow, GE Healthcare, Tokyo, Japan, 6GE Healthcare, Munich, Germany

Magnetic resonance fingerprinting (MRF) permits simultaneous acquisition of T1 and T2 maps perfectly aligned to the anatomy, allowing morphometry and relaxometry analysis of the brain in a single scan. Here, we examined the reproducibility and repeatability of simultaneous morphology and relaxometry of brain structures in healthy volunteers using three-dimensional MRF at multiple field strengths. Scan-rescan tests of three-dimensional MRF were performed at 1.5 and 3T. The local thickness, volume, T1, and T2 values were calculated for each representative neuroanatomical structure using automatic brain segmentation software. These results can help establish imaging biomarkers using MRF for clinical use.

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