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Abstract #4451

The impact of shorter acquisition time in MRF: Long term repeatability and reproducibility study on ISMRM/NIST phantom and volunteers.

Yutaka Kato1, Kazushige Ichikawa1, Toshiaki Taoka2, Hirokazu Kawaguchi3, Katsutoshi Murata3, Katsuya Maruyama3, Gregor Koerzdoerfer4,5, Josef Pfeuffer4, Mathias Nittka4, and Shinji Naganawa2

1Department of Radiological Technology, Nagoya University Hospital, Nagoya, Japan, 2Department of Radiology, Nagoya University Hospital, Nagoya, Japan, 3MR Research & Collaboration, SIEMENS Healthcare K.K., Tokyo, Japan, 4Magnetic Resonance, Siemens Healthcare GmbH, Erlangen, Germany, 5Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany

This study focused on the stability of MRF in a phantom and volunteers, and explored the feasibility of MRF with a shorter acquisition time. Phantom scans on 40 days and volunteer scans on 5 days over 3 months showed comparable repeatability and reproducibility of T1 and T2 values between MRF with acquisition times of 41 sec and 20 sec. Shorter acquisition time has the potential to expand the clinical usage of MRF.

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