Jian Wu1, Xiaoyin Wang2, Hongjian He2, Lingceng Ma1, Shuhui Cai1, Congbo Cai1, and Jianhui Zhong3
1Department of Electronic Science, Xiamen University, Xiamen, China, 2The Center for Brain Imaging Science and Technology, Zhejiang University, Zhejiang, China, 3Department of Imaging Sciences, University of Rochester, Rochester, NY, United States
1Department of Electronic Science, Xiamen University, Xiamen, China, 2The Center for Brain Imaging Science and Technology, Zhejiang University, Zhejiang, China, 3Department of Imaging Sciences, University of Rochester, Rochester, NY, United States
We proposed
an overlapping-echo method for simultaneously achieving reliable T2
and T2* maps in a single shot. Our method is accurate and immune to B0
inhomogeneity.
Figure
1 The
pulse sequence designed for simultaneously T2 and T2* mapping.
Figure
2 Parameter maps and the
corresponding error maps from the phantom. (a) The
magnitude of the first image. (b) The magnitude of the second image. The
magnitude is normalized by the maximum value of these two images. (c) The
reference T2 map. (d) The T2 map obtained with our
proposed method. (e) The associated relative error map. (f) The reference T2*
map. (g) The T2* map obtained with our proposed method. (h) The associated
relative error map. The mean relative error is calculated with the values
within the green rectangles, and it is labeled at the lower right corner of
each error map.
