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3d ordered subset expectation maximization (osem) algorithm  (Philips Healthcare)

 
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    Philips Healthcare 3d ordered subset expectation maximization (osem) algorithm
    3d Ordered Subset Expectation Maximization (Osem) Algorithm, supplied by Philips Healthcare, used in various techniques. Bioz Stars score: 90/100, based on 1 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
    https://www.bioz.com/product/3d+ordered+subset+expectation+maximization+(osem)+algorithm/astonishtm+ordered+subset+expectation+maximization++osem++iterative+algorithm/pm36683076-64-6-16
    Average 90 stars, based on 1 article reviews
    3d ordered subset expectation maximization (osem) algorithm - by Bioz Stars, 2026-10
    90/100 stars

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    other:

    Article Title: 18 F-JK-PSMA-7 PET/CT for staging intermediate- or high-risk prostate cancer patients before radical prostatectomy: a pilot study.
    Article Snippet: PET images were reconstructed using the 3D ordered subset expectation maximization (OSEM) algorithm implemented on the Philips Vereos PET/CT system and set to 3 iterations, 15 subsets and a 3D Gaussian filter with a full width at half-maximum of 6 mm (Vierasu et al. 2022).

    Article Title: 18 F-JK-PSMA-7 PET/CT for staging intermediate- or high-risk prostate cancer patients before radical prostatectomy: a pilot study
    Article Snippet: PET images were reconstructed using the 3D ordered subset expectation maximization (OSEM) algorithm implemented on the Philips Vereos PET/CT system and set to 3 iterations, 15 subsets and a 3D Gaussian filter with a full width at half - maximum of 6 mm (Vierasu et al. ).

    Article Title: Radiation and immune checkpoint inhibitor-mediated pneumonitis risk stratification in patients with locally advanced non-small cell lung cancer: role of functional lung radiomics?
    Article Snippet: Images were reconstructed using the AstonishTM (Philips Healthcare, Cleveland, OH) ordered subset expectation–maximization (OSEM) iterative algorithm on 4.64 mm isotropic grids with spatial resolution recovery and 10 mm cut-off Hanning filter.

    Article Title: Correlation of Functional Lung Heterogeneity and Dosimetry to Radiation Pneumonitis using Perfusion SPECT/CT and FDG PET/CT Imaging
    Article Snippet: Reconstructions were performed with the AstonishTM (Philips Healthcare, Cleveland, OH) ordered subset expectation-maximization (OSEM) iterative algorithm that incorporates spatial resolution recovery.

    Article Title: The value of bone SPECT/CT in evaluation of foot and ankle arthrodesis and adjacent joint secondary osteoarthritis.
    Article Snippet: Objective To evaluate the value of SPECT/CT (single photon emission computed tomography/computed tomography) in foot and ankle arthrodesis and development of secondary osteoarthritis in the adjacent joints.. Materials and methods SPECT/CT of 140 joints in the foot and ankle (34 upper ankle (UA), 28 lower ankle (LA), 27 talonavicular (TN), 12 calcaneo-cuboidal (CC), and 39 other smaller joints after arthrodesis in 72 patients were evaluated retrospectively regarding fusion grade in CT (0 = no fusion, 1 = < 50% fusion, 2 = > 50% fusion, 3 = complete fusion) and radiotracer uptake (0 = no uptake, 1 = mild uptake, 2 = moderate uptake, 3 = high uptake) on SPECT/CT.. Severity of osteoarthritis (1 = mild, 2 = moderate, 3 = severe) and radiotracer uptake grade in adjacent joints was also assessed.

    Article Title: Prevalence and prognostic value of increased uptake in bone SPECT/CT in asymptomatic wrists
    Article Snippet: SPECT images were reconstructed with an iterative 3-D ordered subsets (4 iterations, 16 subsets) expectation maximization (OSEM) algorithm (Astonish, Philips).

    Article Title: Postingestive reward acts through behavioral reinforcement and is conserved in obesity and after bariatric surgery.
    Article Snippet: Image reconstruction was performed using the Astonish algorithm (Philips Healthcare, Eindhoven, NL), an optimized 3D ordered subsets expectation maximization (3D-OSEM) algorithm.

    Single Photon Emission Computed Tomography:

    Article Title: Magnetic resonance imaging (MRI) versus single photon emission computed tomography (SPECT/CT) in painful total hip arthroplasty: a comparative multi-institutional analysis
    Article Snippet: .. SPECT images were reconstructed with an iterative three-dimensional ordered subsets expectation maximization algorithm (Astonish, Philips). .. SPECT and CT images were fused automatically with dedicated software (Extended Brilliance Workspace; Philips Healthcare) and reformatted in coronal and sagittal planes.



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