Výsledky vyhľadávania - ordered subsets expectation maximization (OSEM) algorithm

Comparison of quantitative whole body PET parameters on [68Ga]Ga-PSMA-11 PET/CT using ordered Subset Expectation Maximization (OSEM) vs. bayesian penalized likelihood (BPL) reconstruction algorithms in men with metastatic castration-resistant prostate cancer Autor Ayati, Narjess, McIntosh, Lachlan, Buteau, James, Alipour, Ramin, Pudis, Michal, Daw, Nicholas, Jackson, Price, Hofman, Michael S.

“… The aim of this study is to compare the quantitative parameters obtained using BPL and the Ordered Subset Expectation Maximization (OSEM…”
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Optimal choice of OSEM and SD reconstruction algorithms in CZT SPECT for hypertrophic cardiomyopathy patients Autor Tsuboi, Kunihito, Nagaki, Akio, Shibutani, Takayuki, Onoguchi, Masahisa

“…The spectrum dynamics (SD) algorithm is a cardiac reconstruction algorithm of D-SPECT, which improves spatial resolution compared with the ordered-subsets expectation maximization (OSEM) algorithm…”
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Reducing acquisition time in O-(2- 18 F-fluoroethyl)-L-tyrosine positron emission tomography ( 18 F-FET PET) for malignant brain tumors: temporal stability of ordered subset expectation maximization (OSEM) and HYPER iterative algorithms and selection of reproducible radiomic features Autor Su, Ya, Li, Fengqi, Yang, Hongwei, Yang, Yang, Hu, Yujie, Lu, Jie

“… Furthermore, reconstruction algorithms significantly affect imaging quality. This study aimed to clarify the impact of acquisition duration and reconstruction algorithms on the repeatability of F-FET PET quantitative features in brain tumors…”
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Application of ordered-subsets expectation-maximization (OSEM) algorithm to cone-beam SPECT for accelerated 3D reconstruction Autor Krol, A., Feiglin, D.H., Lee, W., Kunniyur, V.R., Salgado, R.B., Coman, I.L., Lipson, E.D., Karczewski, D.A., Thomas, F.D.

“…We investigated the performance of an ordered-subsets expectation-maximization (OSEM) algorithm for accelerated reconstruction in cone-beam SPECT…”
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Comparison of quantitative whole body PET parameters on 68GaGa-PSMA-11 PET/CT using ordered Subset Expectation Maximization (OSEM) vs. bayesian penalized likelihood (BPL) reconstruction algorithms in men with metastatic castration-resistant prostate cancer Autor Ayati, Narjess, McIntosh, Lachlan, Buteau, James, Alipour, Ramin, Pudis, Michal, Daw, Nicholas, Jackson, Price, Hofman, Michael S

“… The aim of this study is to compare the quantitative parameters obtained using BPL and the Ordered Subset Expectation Maximization (OSEM…”
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Ordered subset expectation maximisation vs Bayesian penalised likelihood reconstruction algorithm in 18F-PSMA-1007 PET/CT Autor Witkowska-Patena, Ewa, Budzyńska, Anna, Giżewska, Agnieszka, Dziuk, Mirosław, Walęcka-Mazur, Agata

“…Background The aim of the study was to compare widely used ordered subset expectation maximisation (OSEM…”
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Noise reduction using a Bayesian penalized-likelihood reconstruction algorithm on a time-of-flight PET-CT scanner Autor Caribé, Paulo R. R. V., Koole, M., D’Asseler, Yves, Van Den Broeck, B., Vandenberghe, S.

“… In this study, the noise properties of this BSREM were compared to the ordered-subset expectation maximization (OSEM…”
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Impact of reconstruction algorithms at different sphere-to-background ratios on PET quantification: A phantom study Autor A. Mohymen, Ahmed, Farag, Hamed I., Reda, Sameh M., Monem, Ahmed S., Ali, Said A.

“…) reconstruction algorithms was investigated. These reconstruction algorithms were (Ordered Subset Expectation Maximization (OSEM), OSEM…”
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Studying the properties of the updating coefficients in the OSEM algorithm for iterative image reconstruction in PET Autor Gaitanis, Anastasios, Kontaxakis, George, Spyrou, George, Panayiotakis, George, Tzanakos, George

“…We have studied the properties of the pixel updating coefficients in the 2D ordered subsets expectation maximization (OSEM…”
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A detector's eye view (DEV)-based OSEM algorithm for benchtop x-ray fluorescence computed tomography (XFCT) image reconstruction Autor Deng, Luzhen, Ahmed, Md F, Jayarathna, Sandun, Feng, Peng, Wei, Biao, Cho, Sang Hyun

“…In this study, we developed a detector's eye view (DEV)-based ordered subsets expectation maximization (OSEM…”
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Fast and accurate X-ray fluorescence computed tomography imaging with the ordered-subsets expectation maximization algorithm Autor Yang, Qun, Deng, Biao, Lv, Weiwei, Shen, Fei, Chen, Rongchang, Wang, Yudan, Du, Guohao, Yan, Fuhua, Xiao, Tiqiao, Xu, Hongjie

“…The ordered‐subsets expectation maximization algorithm (OSEM) is introduced to X‐ray fluorescence computed tomography…”
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Improving the Quality of Brain PET Images Using MR‐Guided PET Reconstruction Technique With Integrated PET/MR Autor Shao, Hongda, Huang, Gan, Wang, Yue, Zhang, Yan, Xue, Qiaoyi, Hao, Jiaxin, Liu, Jianjun

“… The PET images of a Hoffman phantom were reconstructed using the MRg algorithm and routine Ordered Subsets Expectation Maximization (OSEM) algorithm…”
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Comparison of Image Quality and Quantification Parameters between Q.Clear and OSEM Reconstruction Methods on FDG-PET/CT Images in Patients with Metastatic Breast Cancer Autor Naghavi-Behzad, Mohammad, Vogsen, Marianne, Gerke, Oke, Dahlsgaard-Wallenius, Sara Elisabeth, Nissen, Henriette Juel, Jakobsen, Nick Møldrup, Braad, Poul-Erik, Vilstrup, Mie Holm, Deak, Paul, Hildebrandt, Malene Grubbe, Andersen, Thomas Lund

“…) and ordered subset expectation maximization (OSEM) algorithm for 2-[18F]FDG-PET/CT scans performed for response monitoring in patients with metastatic breast cancer in prospective setting…”
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Alternating Direction Method of Multiplier for Tomography With Nonlocal Regularizers Autor Se Young Chun, Dewaraja, Yuni K., Fessler, Jeffrey A.

“…The ordered subset expectation maximization (OSEM) algorithm approximates the gradient of a likelihood function using a subset of projections instead of using…”
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The Effect of Various β Values on Image Quality and Semiquantitative Measurements in 68Ga-RM2 and 68Ga-PSMA-11 PET/MRI Images Reconstructed With a Block Sequential Regularized Expectation Maximization Algorithm Autor Baratto, Lucia, Duan, Heying, Ferri, Valentina, Khalighi, Mehdi, Iagaru, Andrei

“…To compare the block sequential regularized expectation maximization (BSREM) algorithm with the ordered subsets expectation maximization (OSEM…”
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The SRT reconstruction algorithm for semiquantification in PET imaging Autor Kastis, George A., Gaitanis, Anastasios, Samartzis, Alexandros P., Fokas, Athanasios S.

“… In this study, the authors present a comparison between SRT and the ordered‐subsets expectation–maximization (OSEM) algorithm for determining contrast and semiquantitative indices of 18F…”
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Appropriate parameters of the ordered-subset expectation maximization algorithm on measurement of myocardial blood flow and oxygen consumption with 11C-acetate PET Autor Kobayashi, Masato, Mori, Tetsuya, Kiyono, Yasushi, Tsujikawa, Tetsuya, Maruyama, Rikiya, Higaki, Yusuke, Shikano, Naoto, Nishii, Ryuichi, Kawai, Keiichi, Kudo, Takashi, Okazawa, Hidehiko

“… (I) of the ordered-subset expectation maximization (OSEM) algorithm in 11C-acetate PET. A Hanning filter (HF) and a Gaussian filter…”
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Comparative evaluation of Ordered Subset Expectation Maximization and Bayesian Penalized Likelihood algorithms for PET/CT image reconstruction in various malignancies using 18F-FDG and 68Ga-PSMA-11 tracers Autor Naeimi, Arvin, Harsini, Sara, Aghdam, Ramin Akbarian, Klein, Ran, Abbaspour, Farzad

“…This study compares the Ordered Subset Expectation Maximization (OSEM) and Bayesian Penalized Likelihood (BPL…”
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Clinical evaluation of a block sequential regularized expectation maximization reconstruction algorithm in 18F-FDG PET/CT studies Autor Sah, Bert-Ram, Stolzmann, Paul, Delso, Gaspar, Wollenweber, Scott D, Hüllner, Martin, Hakami, Yahya A, Queiroz, Marcelo A, Barbosa, Felipe de Galiza, von Schulthess, Gustav K, Pietsch, Carsten, Veit-Haibach, Patrick

“… Images were reconstructed with BSREM (with four different β values) or ordered subset expectation maximization (OSEM…”
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Ordered subset expectation maximization algorithm for positron emission tomographic image reconstruction using belief kernels Autor Zhu, Yang-Ming

“…) positron emission tomography (PET) image reconstruction using the ordered subset expectation maximization (OSEM) algorithm…”
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