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Front Matter: Volume 10132

2017 Medical Imaging 2017: Physics of Medical Imaging  
of detectability in step-and-shoot mode and continuous mode digital tomosynthesis systems 10132 53 Improvements in low contrast detectability with iterative reconstruction and the effect of slice thickness  ...  10132 54 The effect of a finite focal spot size on location dependent detectability in a fan beam CT system 10132 55 In-vivo detectability index: development and validation of an automated methodology  ...  (Japan) Honorable Mention: Paper 10132-191, "Validation study of the thorax phantom Lungman for optimization purposes," Sunay Rodríguez Pérez, SCK CEN (Belgium) and KU Luven (Belgium) xxviii Proc. of SPIE  ... 
doi:10.1117/12.2276763 fatcat:5vgmgqm4izfdrl6p4itkq6fsjm

A Monte Carlo model of noise components in 3D PET

I. Castiglioni, O. Cremonesi, M.-C. Gilardi, A. Savi, V. Bettinardi, G. Rizzo, E. Bellotti, F. Fazio
2002 IEEE Transactions on Nuclear Science  
The quantitative accuracy of the developed noise model was tested by comparing simulated and measured PET data in terms of physical parameters, count-rate curves, and spatial distribution profiles.  ...  This work presents a new model, developed by Monte Carlo methods, to estimate noise components (scatter and random coincidences) in three-dimensional (3-D) positron emission tomography (PET).  ...  ACKNOWLEDGMENT The authors wish to thank Prof. G. Muehllehner, Dr. S. Surti, Dr. R. Badawi, and Dr. L.-E. Adam for their valuable information and helpful suggestions, and Dr. R.  ... 
doi:10.1109/tns.2002.803686 fatcat:vt4ea5tss5bgtafbefg2anv6xe

Whole body nonrigid CT-PET registration using weighted demons

J.W. Suh, Oh -K. Kwon, D. Scheinost, A.J. Sinusas, Gary W. Cline, X. Papademetris
2011 2011 IEEE International Symposium on Biomedical Imaging: From Nano to Macro  
We present a new registration method for whole-body rat computed tomography (CT) image and positron emission tomography (PET) images using a weighted demons algorithm.  ...  In this situation, we utilized both the transmission-PET and the emission-PET images in the deformable registration process emphasizing particular regions of the moving transmission-PET image using the  ...  Acknowledgments This work was supported in part by the NIH grant R01 EB006494, JDRF 137-2009-29 and Yale-Pfizer Bioimaging Alliance (Y-006-08). The authors thank Dr.  ... 
doi:10.1109/isbi.2011.5872622 pmid:23377533 pmcid:PMC3557845 dblp:conf/isbi/SuhKSSCP11 fatcat:7aoiwexibjgp3kais7ht4v5rge

CT-PET weighted image fusion for separately scanned whole body rat

Jung W. Suh, Oh-Kyu Kwon, Dustin Scheinost, Albert J. Sinusas, Gary W. Cline, Xenophon Papademetris
2012 Medical Physics (Lancaster)  
Purpose: The limited resolution and lack of spatial information in positron emission tomography (PET) images require the complementary anatomic information from the computed tomography (CT) and/or magnetic  ...  Conclusions: In the whole body multimodal registration between CT and PET images, the utilization of both the transmission-PET and the emission-PET images in the registration process by emphasizing particular  ...  I Comparison of M-Hausdorff distance between edge-detected CT images and edge-detected emission-PET images with different OSP (unit: voxels).  ... 
doi:10.1118/1.3672167 pmid:22225323 pmcid:PMC3266828 fatcat:2mzotxgu2rgp5bskx4pyn3gx4e

Advanced Functional Tumor Imaging and Precision Nuclear Medicine Enabled by Digital PET Technologies

Chadwick L. Wright, Katherine Binzel, Jun Zhang, Michael V. Knopp
2017 Contrast Media & Molecular Imaging  
of the annihilation events and further contributes to reduction in partial volume and thus makes high definition and ultrahigh definition PET imaging feasible with current standard acquisition procedures  ...  The purpose of this article is to provide a brief overview of the background, basic principles, technological evolution, clinical capabilities, and future directions for functional tumor imaging as PET  ...  photon counting dPET: Digital positron emission tomography FWHM: Full width half max MR: Magnetic resonance MRI: Magnetic resonance imaging PET: Positron emission tomography PMT: Photomultiplier tube  ... 
doi:10.1155/2017/5260305 pmid:29097926 pmcid:PMC5612735 fatcat:25qc3zwxy5ae5heaiahpfs5nuq

A novel quantitative dual-isotope method for simultaneous ventilation and perfusion lung SPET

Alejandro Sánchez-Crespo, Johan Petersson, Sven Nyren, Margareta Mure, Robb W. Glenny, Jan-Olov Thorell, Hans Jacobsson, Sten G. Lindahl, Stig A. Larsson
2002 European Journal of Nuclear Medicine and Molecular Imaging  
The attenuation correction routine as well as the edge detection algorithm utilized data from 99m Tc transmission tomography.  ...  The estimated fractional V/Q distribution in the 3-D lung phantom volume had its peak at V/Q=1, with a width (FWHM) of 0.31 due to noise, particularly in the 113m In images, and to partial volume effects  ...  This work was funded by the Karolinska Hospital FoUU of the Stockholm County Council, the Swedish Medical Research Council, the Swedish Heart and Lung Foundation and AGA AB.  ... 
doi:10.1007/s00259-002-0803-8 pmid:12111126 fatcat:a2jyprsvtrd6rdlwdkys2xqtbq

Principles and Applications of Nuclear Medical Imaging: A Survey on Recent Developments [chapter]

Faycal Kharfi
2013 Imaging and Radioanalytical Techniques in Interdisciplinary Research - Fundamentals and Cutting Edge Applications  
Patrick Bourguet from the Department of Nuclear Imaging and Medicine, Centre Eugène Marquis (CEM), Rennes, France, for his support in the realization of this work and particularly for giving me the permission  ...  Disclaimer Data and statements expressed in this paper are those from the author and published bibliography cited in this work, and do not necessarily reflect organizations, laboratories and the firms  ...  The device, the Biograph mMR, is the first integrated PET-MR device capable of doing simultaneous whole-body magnetic resonance imaging and positron emission tomography scans.  ... 
doi:10.5772/54884 fatcat:gb26oobtunb7da36etp5rtg5dy

New Applications of Cardiac Computed Tomography

Ibrahim Danad, Zahi A. Fayad, Martin J. Willemink, James K. Min
2015 JACC Cardiovascular Imaging  
Because of its widespread availability, ease of clinical application, superb sensitivity for the detection of coronary artery disease, and noninvasive nature, CT has become a valuable tool within the armamentarium  ...  In the past few years, numerous technological advances in CT have occurred, including dual-energy CT, spectral CT, and CT-based molecular imaging.  ...  note, the absorption of low-energy photons by the human body renders the use of K-edge imaging with iodine challenging given its low K-edge energy of 33.2 keV.  ... 
doi:10.1016/j.jcmg.2015.03.005 pmid:26068288 pmcid:PMC4467470 fatcat:e4vwyefqqjfrrlxizlu2fanrr4

Hybrid positron detection and optical coherence tomography system: design, calibration, and experimental validation with rabbit atherosclerotic models

Daqing Piao, Mehran M. Sadeghi, Jiasheng Zhang, Yueli Chen, Albert J. Sinusas, Quing Zhu
2005 Journal of Biomedical Optics  
We evaluate the performance of our novel hybrid optical coherence tomography ͑OCT͒ and scintillating probe, demonstrate simultaneous OCT imaging and scintillating detection, and validate the system using  ...  Preliminary data obtained from the rabbit model suggest that our prototype positron probe detects local uptake of fluorodeoxyglucose ͑FDG͒ labeled with 18 F positron ͑beta͒ radionuclide emitter, and the  ...  We thank Martin Tornai, Departments of Radiology and Biomedical Engineering at Duke University, for valuable discussions on tissue interaction with betaϪ and betaϩ particles.  ... 
doi:10.1117/1.1954773 pmid:16178644 fatcat:se4chjhvcrf55ptnmq2bjajn4a

Measurement of liver volume by emission computed tomography

M K Kan, G B Hopkins
1979 Journal of Nuclear Medicine  
In 22 volunteers without clinical or laboratory evidence of liver disease, liver volume was determined using single-photon emission computed tomography (ECT).  ...  The volume measurements were validated by the use of phantoms.  ...  ACKNOWLEDGMENT The authors are grateful to Mrs. Lois Bennett for assistance in preparation of the manuscript, and to Tom Ackeret, Kathy Braker. Deanne Osargent, and Dick Shaw for technical assistance.  ... 
pmid:317099 fatcat:l6aorj6p6refne7i4efwb27xb4

An Adaptive Neighbourhood Structuring Element Based Enhancement Technique for Nuclear Images

Neethu M. Sasi, Jayasree V. K.
2017 Journal of clean energy technologies  
The application of radioactive isotopes for imaging human body parts developed into nuclear imaging technology, including single photon emission computed tomography imaging (SPECT).  ...  She developed a low complexity space time adaptive system algorithm for sonar detection and presented it in 2010 IEEE Sensor Array and Multichannel Signal Processing Workshop conducted in Jerusalem.  ...  ACKNOWLEDGMENT The authors would like to thank Dr. Kuruvila Varkey, Nuclear Medicine Physician for his valuable comments on the results and for all his supports.  ... 
doi:10.7763/ijcte.2017.v9.1113 fatcat:g3lgy2nun5h2zlrwqrhmixl4ru

Deep learning-based image quality improvement of 18F-fluorodeoxyglucose positron emission tomography: a retrospective observational study

Junichi Tsuchiya, Kota Yokoyama, Ken Yamagiwa, Ryosuke Watanabe, Koichiro Kimura, Mitsuhiro Kishino, Chung Chan, Evren Asma, Ukihide Tateishi
2021 EJNMMI Physics  
The aim of this study was to compare the clinical value of 18F-fluorodeoxyglucose positron emission tomography (18F-FDG PET) images obtained with the DL method with those obtained using a Gaussian filter  ...  PET images were obtained with the DL method in addition to conventional images reconstructed with three-dimensional time of flight-ordered subset expectation maximization and filtered with a Gaussian filter  ...  Authors' contributions JT: conceptualization, formal analysis, and investigation; project administration; writing of the original draft; and visualization. KYo: validation and investigation.  ... 
doi:10.1186/s40658-021-00377-4 pmid:33765233 fatcat:tg4rxkkb6re47gfpcgsybd3e3i

Exercise thallium-201 single photon emission computed tomography for the diagnosis of coronary artery disease: What should we expect from SPECT?

Kim A. Williams, Martin J. Lipton
1990 Journal of the American College of Cardiology  
Positron emission tomography (PET) is an elegant and well validated technique for assessing myocardial perfusion, noninvasive flow reserve with dipyridamole and myocardial viability (31, 32, (50) (51)  ...  More recently, threedimensional imaging of thallium-20l using rotational single photon emission computed tomography (SPECT) has become a routine clinical procedure.  ... 
doi:10.1016/s0735-1097(10)80056-7 pmid:2299072 fatcat:gvelsw4cpzg7lgrzb5fmcwavvy

Determination of the attenuation map in emission tomography

Habib Zaidi, Bruce Hasegawa
2003 Journal of Nuclear Medicine  
Reliable attenuation correction methods for quantitative emission CT (ECT) require accurate delineation of the body contour and often necessitate knowledge of internal anatomic structure.  ...  This article presents the physical and methodologic basis of attenuation correction and summarizes recent developments in algorithms used to compute the attenuation map in ECT.  ...  ACKNOWLEDGMENTS The authors gratefully thank Dale Bailey, PhD, of the Department of Nuclear Medicine, Royal North Shore Hospital, Sydney, Australia, for the valuable comments and suggestions he made to  ... 
pmid:12571222 fatcat:jhtuj3jelzbizlb7iqt22qs2fq

Multicolor spectral photon counting CT monitors and quantifies therapeutic cells and their encapsulating scaffold in a model of brain damage

Elisa Cuccione, Peter Chhour, Salim Si-Mohamed, Chloé Dumot, Johoon Kim, Violaine Hubert, Claire Crola Da Silva, Marc Vandamme, Emmanuel Chereul, Joëlle Balegamire, Yves Chevalier, Yves Berthezène (+4 others)
2020 Nanotheranostics  
Differentiation of labeled cells and their embedding scaffold was also feasible with SPCCT imaging, with a detection limit as low as 5,000 cells in a voxel of 250 × 250 × 250 µm in dimension in vivo.  ...  Spectral photon counting computed tomography (SPCCT) is a new imaging modality that may be suitable for cell tracking.  ...  Acknowledgements This project has received funding from France Life Imaging and the EU's H2020 research and innovation program under the grant agreement no. 633937.  ... 
doi:10.7150/ntno.45354 pmid:32483519 pmcid:PMC7256015 fatcat:ljzgefurgfff3hkdp5zfmq7dti
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