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. Author manuscript; available in PMC: 2019 Dec 23.
Published in final edited form as: Magn Reson Imaging. 2019 Jan 26;58:116–124. doi: 10.1016/j.mri.2019.01.015

Fig. 1.

Fig. 1.

Simulations of the acquired signal per unit of time for a T1w sodium acquisition according to TR and flip angle created by a square pulse under SAR constrains. Panels A to D illustrate that increasing the pulse duration for a given TR allows one to reach higher flip angles. The maximum value is reached with a 500 μs pulse length with a TR of 20 ms, which corresponds to Ernst Angle of brain tissues when considering a T1 of 35 ms.