Bian Zhaoying, Lu Lijun, Ma Jianhua, Feng Qianjin, Chen Wufan. Regional spatial-temporal prior based dynamic PET reconstruction[J]. Journal of Image and Graphics, 2011, 16(10): 1784-1790. DOI: 10.11834/jig.20111007.
For Bayesian dynamic Positron emission tomography (PET) reconstruction
a regional spatial-temporal prior (RST) model is proposed in this paper. The RST exploits sufficiently both the spatial and temporal information
and could suppress the noise in both two spatial dimensions and one temporal dimension. Computer simulations of brain 18F-FDG dynamic PET was conducted to validate the proposed approach. The comparison with other classical reconstruction methods shows that the proposed approach performs better in dynamic PET reconstruction and the results are more accurately estimating of the influx rate Ki of 18F-FDG in the lesion region.