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2014 Index IEEE Transactions on Medical Imaging Vol. 33

2014 IEEE Transactions on Medical Imaging  
., +, TMI Feb. 2014 518-534 Postreconstruction Nonlocal Means Filtering of Whole-Body PET With an Anatomical Prior.  ...  ., +, TMI April 2014 1004 Postreconstruction Nonlocal Means Filtering of Whole-Body PET With an Anatomical Prior.  ...  MRI Upsampling Using Feature-Based Nonlocal Means Approach. Jafari-Khouzani, K., 1969 -1985 Numerical Surrogates for Human Observers in Myocardial Motion Evaluation From SPECT Images.  ... 
doi:10.1109/tmi.2014.2386278 fatcat:poarfhfto5bm5mhfl7ugwtw4xy

Multitracer Guided PET Image Reconstruction

Sam Ellis, Andrew Mallia, Colm J. McGinnity, Gary J. R. Cook, Andrew J. Reader
2018 IEEE Transactions on Radiation and Plasma Medical Sciences  
Furthermore, guided reconstruction outperformed a comparable non-local means filter, indicating that regularising during reconstruction is preferable to post-reconstruction approaches.  ...  However, one or more of the images may present high levels of noise.  ...  In addition, the MLEM images were filtered with nonlocal-means (NLM) filters corresponding to the same FDG-derived weights used in the MAPEM approach (denoted hereafter as FDG-NLM).  ... 
doi:10.1109/trpms.2018.2856581 pmid:30215028 pmcid:PMC6130802 fatcat:2gxn25rkpbe2dgryiqf6iohv6q

Artificial Intelligence-Based Image Enhancement in PET Imaging: Noise Reduction and Resolution Enhancement [article]

Juan Liu, Masoud Malekzadeh, Niloufar Mirian, Tzu-An Song, Chi Liu, Joyita Dutta
2021 arXiv   pre-print
We present here a detailed review of recent efforts for AI-based PET image enhancement with a focus on network architectures, data types, loss functions, and evaluation metrics.  ...  High noise and low spatial resolution are two key confounding factors that limit the qualitative and quantitative accuracy of PET images.  ...  Masoud Malekzadeh, Tzu-An Song, and Joyita Dutta are supported in part by NIH grants K01AG050711, R21AG068890, and R03AG070750.  ... 
arXiv:2107.13595v1 fatcat:dethv7xhpbhjnikwbunr5e3tgi

RECONSTRUCTION OF PET IMAGE BASED ON KERNELIZED EXPECTATION-MAXIMIZATION METHOD

T Agita, M Moorthi
International Research Journal of Engineering and Technology   unpublished
PET image is constructed as kernel matrix. In dynamic PET image reconstruction, proper numbers of composite frames is important for reconstructing high quality images and reduce noise.  ...  To improve image quality, prior information are used.  ...  DYNAMIC PET SIMULATION SETUP Dynamic PET scans were simulated for a GE DST whole body PET scanner using a Zubal head phantom. The Zubal brain phantom is shown below in Fig-2 .  ... 
fatcat:oalmvasm2fhb5oenbgkwjcespi