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Direct Parametric Reconstruction With Joint Motion Estimation/Correction for Dynamic Brain PET Data

Jieqing Jiao, Alexandre Bousse, Kris Thielemans, Ninon Burgos, Philip S. J. Weston, Jonathan M. Schott, David Atkinson, Simon R. Arridge, Brian F. Hutton, Pawel Markiewicz, Sebastien Ourselin
2017 IEEE Transactions on Medical Imaging  
parametric reconstruction motion correction approach can improve the accuracy of quantifying dynamic PET data with large subject motion.  ...  Direct reconstruction of parametric images from raw photon counts has been shown to improve the quantitative analysis of dynamic positron emission tomography (PET) data.  ...  Fig. 1 . 1 Overview of the proposed work for direct parametric reconstruction of dynamic brain PET data with joint subject motion estimation/correction.  ... 
doi:10.1109/tmi.2016.2594150 pmid:27576243 fatcat:zl4ylvq56nghzos6zwxkk2rjde

Strategies for Motion Tracking and Correction in PET

Arman Rahmim, Olivier Rousset, Habib Zaidi
2007 PET Clinics  
Recent developments in three-dimensional (3D) PET systems have enabled the spatial resolution to reach the 2-to 5-mm full-width-at-half-maximum 1556-8598/07/$ -see front matter ª  ...  Alternatively, hybrid motion estimation/correction methods have been proposed [11, 12] that use forward-projected data to detect brain motions and incorporate this information into 3D iterative reconstructions  ...  motion (a benefit for small institutions that do not have a gating system); (2) it allows reconstruction of PET images at any breathing phase (eg, phase-matching with the CT image data acquired on PET  ... 
doi:10.1016/j.cpet.2007.08.002 pmid:27157876 fatcat:j2qhc5pxwnb43ns6s3u5fbqfoq

A combined local and global motion estimation and compensation method for cardiac CT

Qiulin Tang, Beshan Chiang, Akinola Akinyemi, Alexander Zamyatin, Bibo Shi, Satoru Nakanishi, Bruce R. Whiting, Christoph Hoeschen
2014 Medical Imaging 2014: Physics of Medical Imaging  
We have developed a novel whole-body PET parametric reconstruction framework in the STIR platform, a widely employed open-source reconstruction toolkit, a) enabling accelerated convergence of direct 4D  ...  Recently, we proposed a multi-bed dynamic acquisition framework enabling clinically feasible whole-body parametric PET imaging by employing post-reconstruction parameter estimation.  ...  Studies have shown that there is variation in the agreement between operators viewing the same tissue [1] suggesting that a complimentary technique for verification could improve the robustness of the  ... 
doi:10.1117/12.2043492 fatcat:fyzpc5m6jbh7fjohqpdmtzkhte

Magnetic resonance fingerprinting

Dan Ma, Vikas Gulani, Nicole Seiberlich, Kecheng Liu, Jeffrey L. Sunshine, Jeffrey L. Duerk, Mark A. Griswold
2013 Nature  
Figure 5 - 5 : 55 Examples of reconstructed images from the motion corrupted study. Figure 5 - 5 6 compares the quantitative maps from the data with and without the motion corrupted data.  ...  Section 3.4.1 K-t Methods In dynamic imaging, the joint spatial-temporal correlation has been used in k-t BLAST 36 and k-t SENSE 33 to resolve the reconstruction problems from undersampled acquisition  ... 
doi:10.1038/nature11971 pmid:23486058 pmcid:PMC3602925 fatcat:pcgmnilvefelhcaxdw2xxmj4la

Graphical methods for atlas-based segmentation and local disease grading in medical images

Lisa Koch, Daniel Rueckert, European Union; Engineering And Physical Sciences Research Council
2017
The contributions presented in this thesis are three-fold: We present two graphical methods for atlas-based anatomical image segmentation with a focus on alleviating the impact of limited availability  ...  The proposed anatomical disease model was evaluated on a clinical brain MR dataset for differentiation between Alzheimer's disease patients and healthy elderly subjects.  ...  However, if no correct data are available, a correct label can never be estimated. Correct labels can only be estimated when they are present in the atlas set.  ... 
doi:10.25560/49457 fatcat:ewonbbzixzfmvoiwsn3cebnl5a

Issue 4-May 2012-Mastering Complexity: an Overview Mastering Complexity Mastering Complexity: an Overview

Claude Barrouil
unpublished
Conclusion In this article, we have presented a large spectrum of methods for evaluating performances of complex systems that could significantly improve the results obtained with classical algorithms.  ...  Elie for the SimSky project, A. Joulia for the 4DCoGC project, P. Siron and M. Adelantado for the CERTI. The authors would also like to express special gratitude to Dr. H.  ...  The new estimated corrections should be centered around 0 and their amplitudes should be kept small enough to ensure that a sufficiently accurate model is derived.  ... 
fatcat:ctmfmyn6gfclnecdecgv27uh74

Body Mass Index For Australian Athletes Participating in Rugby Union, Soccer and Touch Football at the World Masters Games

K Adams, M Debeliso, J Walsh, S Burke, I Heazlewood, J Kettunen, M Climstein, J Walsh, S Burke, K Adams, M Debeliso, J Kuttunen (+124 others)
2017 World Masters Games. World Academy of Science, Engineering and Technology   unpublished
references ACKNOWLEDGEMENTS The research was carried out according to the Kharkov State Academy of Physical Culture research Thematic plan for 2016-2020 on the subject "Improvement of process of physical  ...  SCORE PREDICTION -Participants were asked to predict their scores related to the estimated correct answers on a scale between zero and one hundred before and after the experimentation process (i.e. in  ...  THE SAMPLE OF VARIABLES A questionnaire with eight questions was used for data collection (Marković et al., 2015) .  ... 
fatcat:dv4uvsn5w5enrabmzt7nke4muq