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Voxelisation in the 3-D Fly Algorithm for PET

Zainab Ali Abbood, Julien Lavauzelle, Évelyne Lutton, Jean-Marie Rocchisani, Jean Louchet, Franck P. Vidal
2017 Swarm and Evolutionary Computation  
Peer reviewed version Cyswllt i'r cyhoeddiad / Link to publication Dyfyniad o'r fersiwn a gyhoeddwyd / Citation for published version (APA): Abstract The Fly Algorithm was initially developed for 3-D robot  ...  The reconstructed radioactive concentration is derived from the population of flies, i.e. a collection of points in the 3-D Euclidean space, after convergence.  ...  providing some of the computing facilities used in this study.  ... 
doi:10.1016/j.swevo.2017.04.001 fatcat:4pfugiyoujb4xfch7tre5y4oeu

Analytical calculation of volumes-of-intersection for iterative, fully 3-D PET reconstruction

J.J. Scheins, F. Boschen, H. Herzog
2006 IEEE Transactions on Medical Imaging  
The above methods have been applied for a fully 3-D, iterative reconstruction of 3-D sinograms recorded with a Siemens/CTI ECAT HR+ PET scanner.  ...  Use of iterative algorithms to reconstruct three-dimensional (3-D) positron emission tomography (PET) data requires the computation of the system probability matrix.  ...  ACKNOWLEDGMENT The authors would like to thank Y. Li, D. Krücker, and E. Rota Kops for valuable discussions, as well as L. Tellmann for technical support.  ... 
doi:10.1109/tmi.2006.880679 pmid:17024839 fatcat:gfkv7aoptzahvoqbh2vh6wplzy

Optimisation of the event-based TOF filtered back-projection for online imaging in total-body J-PET

R.Y. Shopa, K. Klimaszewski, P. Kopka, P. Kowalski, W. Krzemień, L. Raczyński, W. Wiślicki, N. Chug, C. Curceanu, E. Czerwiński, M. Dadgar, K. Dulski (+15 others)
2021 Medical Image Analysis  
We perform a parametric study of the newly developed time-of-flight (TOF) image reconstruction algorithm, proposed for the real-time imaging in total-body Jagiellonian PET (J-PET) scanners.  ...  The approach allows training the reconstruction algorithm for custom scans, using the IEC phantom, when the temporal resolution is below 50 ps.  ...  Acknowledgements This work was supported by the Foundation for Polish Science through MPD and TEAM POIR.04.04.0 0-0 0-  ... 
doi:10.1016/j.media.2021.102199 pmid:34365143 fatcat:a6m3cfiddff55fr5bh54j6zy4i

A new virtual ring-based system matrix generator for iterative image reconstruction in high resolution small volume PET systems

K Li, M Safavi-Naeini, D R Franklin, Z Han, A B Rosenfeld, B Hutton, M L F Lerch
2015 Physics in Medicine and Biology  
The large number of detector elements results in the system matrix -an essential part of statistical iterative reconstruction algorithms -becoming impractically large.  ...  In this paper, we propose a methodology for system matrix modelling which utilises a virtual single-layer detector ring to greatly reduce the size of the system matrix without sacrificing precision.  ...  The authors would like to thank CSIRO for its financial support for this project. REFERENCES  ... 
doi:10.1088/0031-9155/60/17/6949 pmid:26305868 fatcat:qclafu7m6rc55er35xinkobkay

Fast reconstruction of low dose proton CT by sinogram interpolation

David C Hansen, Thomas Sangild Sørensen, Simon Rit
2016 Physics in Medicine and Biology  
In this article, we extend the methodology for direct reconstruction to be applicable for low imaging doses and compare the obtained results with three state-of-the-art iterative algorithms.  ...  published iterative algorithms.  ...  Acknowledgments This work was sponsored by the Danish Cancer Society (grant no. A5992) and the Lundbeck Centre for Interventional Research in Radiation Oncology (CIRRO).  ... 
doi:10.1088/0031-9155/61/15/5868 pmid:27444677 fatcat:l4uwtzny7fhenbvaljgfyp7uae

Correction for human head motion in helical x-ray CT

J-H Kim, T Sun, A R Alcheikh, Z Kuncic, J Nuyts, R Fulton
2016 Physics in Medicine and Biology  
Correction for rigid object motion in helical CT can be achieved by reconstructing from a modified source-detector orbit, determined by the object motion during the scan.  ...  This ensures that all projections are consistent, but it does not guarantee that the projections are complete in the sense of being sufficient for exact reconstruction.  ...  We are grateful to Dr K Stierstorfer of Siemens AG, Healthcare Sector, Forchheim, Germany for assistance with raw CT data formats.  ... 
doi:10.1088/0031-9155/61/4/1416 pmid:26807931 fatcat:h4jiqvallzhp5mvqp22mhhqi3e

Detector Simulation Challenges for Future Accelerator Experiments

John Apostolakis, Marilena Bandieramonte, Sunanda Banerjee, Nazar Bartosik, Gloria Corti, Gabriele Cosmo, V. Daniel Elvira, Thomas Evans, Andrei Gheata, Simone Pagan Griso, Vladimir Ivantchenko, Christopher Jones (+6 others)
2022 Frontiers in Physics  
New accelerator, detector, and computing technologies set the stage for an exercise in how detector simulation will serve the needs of the high-energy physics programs of the mid 21st century, and its  ...  Detector simulation is a key component for studies on prospective future high-energy colliders, the design, optimization, testing and operation of particle physics experiments, and the analysis of the  ...  ACKNOWLEDGMENTS We gratefully acknowledge the international high-energy and nuclear physics simulation community, as well as our colleagues from many other research fields who actively participate in the  ... 
doi:10.3389/fphy.2022.913510 fatcat:6sr4oqzeazakbjmfx56d6jrl74

A GATE Monte Carlo dose analysis from Varian XI conebeam computed tomography [article]

Luke Gilling, University Of Canterbury
2019
The average difference between simulated and experimental results was 13.7% for pelvis CBCT and 6.4% for head CBCT. Effective doses were measured for the three main CBCT [...]  ...  Precise dose measurements were then made to convert the simulated dose into experimental dose for a given x-ray tube potential. • Estimation of organ doses and effective dose in a human phantom.  ...  The MT algorithm pregenerates random number sequences for sampling rather than generating them on-the-fly.  ... 
doi:10.26021/7392 fatcat:ijm7wwccg5ea7clccfpeukarbm

Novel quantitative approaches for the assessment of pathological features in murine models of Osteoarthritis

Patrícia Das Neves Borges, Anthony Bull, Kennedy Trust For Rheumatology Research
2017
The proposed approaches provide an unprecedented high-throughput solution for analysis in the mouse model and might be useful to improve [...]  ...  Notwithstanding the dramatic modifications observed radiographically in subchondral bone, their contribution to the pathology is not fully understood and little is known about bone role in the pathogenesis  ...  C h a p t e r 2 | S u b c h o n d r a l b o n e i m a g i n g a n d o s t e o a r t h r i t i c c h a n g e s 2 . 3 . 6 . 3 Subchondral bone analysis upon registration 2 . 3 . 6 . 3 . 1 2236323631 Cortical  ... 
doi:10.25560/51492 fatcat:z76f6vbir5cjbfxahpzwz3mjau