Yongquan Ye1, Jingyuan Lv1, Yichen Hu1, Zhongqi Zhang2, Jian Xu1, and Weiguo Zhang1
1UIH America, Inc., Houston, TX, United States, 2United Imaging Healthcare, Shanghai, China
1UIH America, Inc., Houston, TX, United States, 2United Imaging Healthcare, Shanghai, China
A computational image processing method was proposed for improved T1 contrast on GRE signals acquired with dual-flip angles. The proposed augmented T1W (aT1W) method features in pure T1 weightings and high SNR in resultant images.
Figure.4 Comparison between aT1W images and T1 FLAIR images with TI=750ms.
Figure.1 Simulated
signal changes as a function of T1 values, based on simplified Eq.1 with M0, E2
set as 1, TR=10ms, and α1/α2=6°/48°. All signals are normalized by their
respective values at T1=100ms. The two vertical reference lines indicate the
assumed T1 values for WM (800ms) and GM (1600ms). Note that T1WE signal curve
is non-monotonic.
