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Mostrando 721 - 740 Resultados de 1,837 Para Buscar '"Siemens"', tiempo de consulta: 0.17s Limitar resultados
  1. 721
    “…OBJECTIVE: The aim of this study is to evaluate the effect of tissue composition on dose distribution in electron beam radiotherapy. METHODS: A Siemens Primus linear accelerator and a phantom were simulated using MCNPX Monte Carlo code. …”
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    Effect of Tissue Composition on Dose Distribution in Electron Beam Radiotherapy
  2. 722
    “…Group differences in gray matter volume (GMV) were assessed using high-resolution, T1-weighted, volumetric magnetic resonance imaging datasets (3T Trio scanner; Siemens AG) and analyzed after controlling for age and total GMV, which was decreased in the bilateral inferior frontal gyrus (IFG) (left IFG: FWE corrected, p < 0.05; right IFG: uncorrected, p < 0.05) of patients with AN. …”
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    Anorexia Nervosa during Adolescence Is Associated with Decreased Gray Matter Volume in the Inferior Frontal Gyrus
  3. 723
    “…This study established reference intervals for estradiol, progesterone, luteinizing hormone, follicle-stimulating hormone, and prolactin with the immunoassay platforms Advia Centaur and Immulite 2000XP (Siemens Healthcare, Germany). We recruited healthy men (n=220), women in the follicular (n=139) or luteal (n=87) phases of the menstrual cycle, and postmenopausal women (n=103). …”
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    Establishing Reference Intervals for Sex Hormones on the Analytical Platforms Advia Centaur and Immulite 2000XP
  4. 724
    “…Thirty-one patients with pelvic floor disorders were enrolled, and underwent MR Defecography in supine position with 1.5 T closed magnet (MAGNETOM Symphony, Siemens, Germany) and in sitting position with a 0.25-Tesla open magnet system (G-Scan ESAOTE, Italy). …”
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    MR Imaging in Diagnosis of Pelvic Floor Descent: Supine versus Sitting Position
  5. 725
    “…Thirty-six healthy subjects (31.22 ± 9.29 years) were recruited and the 2D time-of-flight magnetic resonance venography was acquired with a 1.5 T Siemens scanner. The IJV were segmented on an axial slice, the contours were propagated in 3D. …”
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    Assessment of Internal Jugular Vein Size in Healthy Subjects with Magnetic Resonance and Semiautomatic Processing
  6. 726
    por Nakanishi, Rine, Budoff, Mathew J
    Publicado 2016
    “…More recently, a one-dimensional computational analysis technique (Siemens cFFR), which can be performed on on-site workstations, has been developed and is currently under investigation. …”
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    Noninvasive FFR derived from coronary CT angiography in the management of coronary artery disease: technology and clinical update
  7. 727
    “…MATERIALS AND METHODS: This project was performed with ONCOR Siemens linear accelerators. The amount of radiation leakage was determined by film dosimetry method. …”
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    Dosimetry and evaluating the effect of treatment parameters on the leakage of multi leaf collimators in ONCOR linear accelerators
  8. 728
    “…We compared an EpCAM-dependent (IsoFlux) and a size-dependent (automated Siemens Healthineers filtration device) isolation method for the enrichment of pancreatic cancer CTCs. …”
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    Isolation of circulating tumor cells from pancreatic cancer by automated filtration
  9. 729
    “…The purpose of this study is to test gated photon delivery of a Siemens ONCOR Avant‐Garde linear accelerator. Dosimetric characteristics for gated and nongated delivery of 6‐MV and 15‐MV photons were compared for the range of doses, dose rates, and for several gating regimes. …”
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    Dosimetric characteristics of a new linear accelerator under gated operation
  10. 730
    “…The treatment time for both delivery techniques on Siemens accelerators was retrospectively analyzed based on the electronic treatment record in LANTIS for 95 patients. …”
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    Compensators: An alternative IMRT delivery technique
  11. 731
    por Warner, Graham C., Helmer, Karl G.
    Publicado 2018
    “…We find that, in general, data from GE scanners are less similar than are data from Siemens scanners. We also find that the distribution of distance metric values is not Gaussian at any selection of the acquisition parameters considered here (field strength, number of gradient directions, b-value, and vendor).…”
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    Characterization of Diffusion Metric Map Similarity in Data From a Clinical Data Repository Using Histogram Distances
  12. 732
    “…MRI data were collected on three platforms (Siemens, GE, and Philips) at four sites. Scans were spaced two years apart. …”
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    Two-year cortical trajectories are abnormal in children and adolescents with prenatal alcohol exposure
  13. 733
    “…Furthermore, the CPS has been integrated and tested in conjunction with Siemens’ Manufacturing Execution System (MES) (Simatic IT). …”
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    A Fog Computing Based Cyber-Physical System for the Automation of Pipe-Related Tasks in the Industry 4.0 Shipyard
  14. 734
    “…METHODS: Thirty-two first episode drug-naive patients with MDD and thirty healthy controls (HCs) were recruited in this study; the structural MRI and fMRI data were collected using the 3.0 T Trio Siemens System. All the patients were interviewed using the HAMD-17. …”
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    Resting-state functional changes in the precuneus within first-episode drug-naive patients with MDD
  15. 735
    “…MATERIALS AND METHODS: Whole body as well as regional simultaneous PET and MRI was performed on Biograph mMR (Siemens, Erlangen, Germany) Simultaneous PET/MRI system in 4500 clinical cases of various cancers from 2013 to 2017 with an in-house designed imaging protocol to assess its utility. …”
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    A Practical Approach to Optimize Scan Protocol for Simultaneous Whole-Body Positron Emission Tomography/Magnetic Resonance Imaging in Cancer Staging
  16. 736
    “…Brain imaging experiments were performed in one baboon and whole body PET scans were performed in triplicates in two male baboons using an ECAT ACCEL (Siemens Medical Solutions, Inc. Knoxville) under anesthetic conditions. …”
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    In Vivo Brain Imaging, Biodistribution, and Radiation Dosimetry Estimation of [(11)C]Celecoxib, a COX-2 PET Ligand, in Nonhuman Primates
  17. 737
    “…Both 1.5 and 0.35 Tesla MRI systems (Toshiba and Siemens Medical system) were applied to investigate patients with suspected intervertebral disc abnormalities at three MRI diagnostic centers in Khartoum, Sudan. …”
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    Incidental Extraspinal Findings in the Thoracic Spine during Magnetic Resonance Imaging of Intervertebral Discs
  18. 738
    “…METHODS: Using spin echo full intensity acquired localized spectroscopy on a Siemens 3 Tesla magnetic resonance scanner, we obtained occipital and parietal metabolite concentrations in 14 patients suffering from migraine with aura and a group of 16 matched healthy subjects. …”
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    Cortical GABA in migraine with aura -an ultrashort echo magnetic resonance spectroscopy study
  19. 739
    por Bush, V.J., Smola, C., Schmitt, P.
    Publicado 2019
    “…OBJECTIVES: We evaluated and defined the analytical performance of the Beckman Coulter DxC 700 AU analyzer compared to the Siemens Dimension Vista 500 analyzer. DESIGN: and Methods: Performance characteristics included intra and inter-run precision, linearity/analytical measurement range, method correlation, and reference range verification. …”
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    Evaluation of the Beckman Coulter DxC 700 AU chemistry analyzer
  20. 740
    “…CT images were obtained via dynamic axial imaging (Siemens SOMATOM Force) during conventional pressure-controlled mechanical ventilation (CMV), as well as high-frequency and multi-frequency oscillatory ventilation modalities (HFOV and MFOV, respectively). …”
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    Quantifying Regional Lung Deformation Using Four-Dimensional Computed Tomography: A Comparison of Conventional and Oscillatory Ventilation
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