Rita Schmidt1,2, Amir Seginer3, and Yael Kierson1,2
1Neurobiology, Weizmann Institute of Science, Rehovot, Israel, 2The Azrieli National Institute for Human Brain Imaging and Research, Weizmann Institute of Science, Rehovot, Israel, 3Siemens Healthcare Ltd, Rosh Ha’ayin, Israel
1Neurobiology, Weizmann Institute of Science, Rehovot, Israel, 2The Azrieli National Institute for Human Brain Imaging and Research, Weizmann Institute of Science, Rehovot, Israel, 3Siemens Healthcare Ltd, Rosh Ha’ayin, Israel
We propose a 3D-GRE method with specific RF phase increments and two flip angles capable to produce T2 and B1 maps. We denote this method as Steady-state T2 And
Rf Estimation (STARE). STARE offers a new capability to acquire fast 3D dataset
for T2 mapping.
Figure 1: Bloch simulation of θ(T2, α) for φinc=2. a) 2D θ(T2, α)
map b) plots at constant flip angle α - θ(T2, α=const.) , for α =10°,15° and 25° and c) plots at
constant T2 - θ(T2=const., α), for T2=35,45 and 55 ms.
Figure 4: STARE - human volunteer imaging. Upper images
shows the acquired magnitude data, the imaginary part of a signal defined as imag(Mag.·eiθ) and θ maps. The bottom images show the output T2 and B1 maps at the main cross sections (sagittal,
transversal and coronal images).