Tian Li1, Di Cui2, Ge Ren1, Edward S. Hui3, and Jing Cai1
1Department of Health Technology and Informatics, The Hong Kong Polytechnic University, Hong Kong, Hong Kong, 2Department of Diagnostic Radiology, The University of Hong Kong, Hong Kong, Hong Kong, 3Department of Rehabilitation Science, The Hong Kong Polytechnic University, Hong Kong, Hong Kong
1Department of Health Technology and Informatics, The Hong Kong Polytechnic University, Hong Kong, Hong Kong, 2Department of Diagnostic Radiology, The University of Hong Kong, Hong Kong, Hong Kong, 3Department of Rehabilitation Science, The Hong Kong Polytechnic University, Hong Kong, Hong Kong
We investigated
three different acquisition methods for 4D-MRI
technique in simulation study.
Figure
1: The T1 (A) and T2 (B) maps of the 4D XCAT phantom of 10 respiratory phases
estimated from the triggered 4D-MRF acquisition method with 10 repetitions in
the presence of irregular breathing. Dashed white lines are added to facilitate
the visualization of respiratory motion.
Figure
2: The different image quality indexes measured in T1 maps. The A-F corresponds
to overall T1 value error, liver T1 value error, tumor T1 value error, tumor T1
contrast, tumor T1 SNR, and liver T1 SNR respectively.