Showing 161 - 180 results of 305 for search '"The Phantom"', query time: 0.04s Refine Results
  1. 161

    Investigation of the Effect of Calibration Curves Obtained from Different Computed Tomography Devices on the Dose Distribution of Tomotherapy Plans by Hikmettin Demir, Osman Vefa Gül, Gül Kanyilmaz

    Published 2024-12-01
    “…Methods: All CT data required for treatment planning system (TPS) were obtained using the Tomotherapy “cheese” phantom. HU RED calibration curves were created with images obtained from Siemens Somatom, GE Optima, and Toshiba Aquilion devices. …”
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  2. 162

    FDK Half-Scan with a Heuristic Weighting Scheme on a Flat Panel Detector-Based Cone Beam CT (FDKHSCW) by Dong Yang, Ruola Ning

    Published 2006-01-01
    “…Computer simulation is employed and conducted on a 3D Shepp-Logan phantom. The result illustrates a correction of FDKHSCW to the attenuation coefficient drop in the off-scanning plane associated with FDKFS and FDKHSFW while maintaining the same spatial resolution.…”
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  3. 163

    Anisotropic Elastography for Local Passive Properties and Active Contractility of Myocardium from Dynamic Heart Imaging Sequence by Yi Liu, Ge Wang, L. Z. Sun

    Published 2006-01-01
    “…Model-based simulations are conducted using a numerical left ventricle (LV) phantom with an ischemic region. The passive material parameters of normal and ischemic tissues are identified during LV rapid/reduced filling and artery contraction, and those of active contractility are quantified during isovolumetric contraction and rapid/reduced ejection. …”
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  4. 164

    Improved Delay-and-Sum Beamforming Algorithm for Breast Cancer Detection by M. Klemm, I. J. Craddock, J. A. Leendertz, A. Preece, R. Benjamin

    Published 2008-01-01
    “…Using a multistatic UWB radar system based on a hemispherical antenna array, we present experimental detection of 7 mm and 10 mm phantom tumours. We show that the new proposed DAS algorithm improves signal-to-clutter ratio in focused images by 2.65 dB for 10 mm tumour, and by 4.4 dB for 7 mm tumour.…”
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  5. 165

    Development of a Compact Wide-Slot Antenna for Early Stage Breast Cancer Detection Featuring Circular Array Full-View Geometry by S. S. Tiang, M. S. Hathal, N. S. Nik Anwar, M. F. Ain, M. Z. Abdullah

    Published 2014-01-01
    “…Imaging result using inhomogeneous breast phantom indicates that the proposed antenna is capable of detecting a 5 mm size cancerous tumor embedded inside the fibroglandular region with dielectric contrast between the target and the surrounding materials ranging from 1.7 : 1 to 3.6 : 1.…”
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  6. 166

    Improved Numerical-Analytical Thermal Modeling Method of the PCB With Considering Radiation Heat Transfer and Calculation of Components’ Temperature by Yabin Zhang

    Published 2021-01-01
    “…The modeling results of the PCB of a phantom DC-DC power supply under radiation heat transfer are also given and discussed, and the modeling accuracy is approximately derived based on Richardson’s extrapolation.…”
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  7. 167

    A comprehensive analysis of stable configurations of nonrotating BTZ-ModMax thin-shell wormholes by Faisal Javed, Arfa Waseem, Sobia Sadiq, G. Mustafa

    Published 2025-01-01
    “…It is noted that the thin-shell wormhole configurations containing quintessence-like matter have more stability, whereas configurations with phantom energy demonstrate unstable behavior. Our stability analysis reveals that thin-shell wormholes exhibit increased stability with higher values of charge, whereas larger cosmological constants diminish stability regions. …”
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  8. 168

    A Low Profile Ultrawide Band Monopole Antenna for Wearable Applications by Srinivas Doddipalli, Ashwin Kothari, Paritosh Peshwe

    Published 2017-01-01
    “…Specific absorption rate (SAR) of the proposed antenna on dispersive phantom model is also measured to observe the exposure of electromagnetic energy on human tissues. …”
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  9. 169

    Fluorescence Lifetime Imaging System for in Vivo Studies by Moinuddin Hassan, Jason Riley, Victor Chernomordik, Paul Smith, Randall Pursley, Sang Bong Lee, Jacek Capala, Gandjbakhche Amir H

    Published 2007-07-01
    “…To quantify the intrinsic lifetime of deeply embedded fluorophores, we performed phantom experiments to investigate the contribution of photon migration effects on observed lifetime by calculating the fluorescence intensity decay time. …”
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  10. 170

    Is Single-View Fluoroscopy Sufficient in Guiding Cardiac Ablation Procedures? by Pascal Fallavollita

    Published 2010-01-01
    “…Validation was performed in ideal and clinical conditions. For phantom experiment, when using a 7-French catheter, the average recovered depth error was 2.05±1.46 mm using a single image. …”
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  11. 171

    A Simulation Study for Optimal Pinhole Collimator Design in Gamma Camera Systems by M. A. Ghoneim

    Published 2024-12-01
    “…The imaging capabilities of the proposed system were assessed by varying the magnification factor and pinhole diameter to estimate spatial resolution and sensitivity. Moreover, a hot rod phantom was designed to evaluate the system’s overall imaging functionality. …”
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  12. 172

    Dual-Band On-Body Repeater Antenna for In-on-On WBAN Applications by Jinpil Tak, Kyeol Kwon, Sunwoo Kim, Jaehoon Choi

    Published 2013-01-01
    “…The antenna was fabricated, and its performance was measured by attaching it to a human-equivalent semisolid phantom. In addition, the human-body effect was studied to ensure antenna performance under an actual situation.…”
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  13. 173

    Assessment of Lower Limb Muscle Volume Using 3D Ultrasonography: Validity and Reliability Compared to MRI by Paul Ritsche, Romina Ledergerber, Michele Pansini, Francesco Santini, Oliver Faude

    Published 2025-01-01
    “…Validation was enhanced with phantom models (100–600 mL) scanned via both modalities. …”
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  14. 174

    On the Use of Molecular Weight Cutoff Cassettes to Measure Dynamic Relaxivity of Novel Gadolinium Contrast Agents: Example Using Hyaluronic Acid Polymer Complexes in Phosphate-Buff... by Nima Kasraie, Henry Wayne Oviatt, Geoffrey David Clarke

    Published 2011-01-01
    “…We assessed the dynamic relaxivity of the HA bound DTPA compounds using a custom-made phantom, as well as relaxation rates at 10.72 MHz with concentrations ranging between 0.09 and 7.96 mM in phosphate-buffered saline. …”
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  15. 175

    Brain Stroke Detection by Microwaves Using Prior Information from Clinical Databases by Natalia Irishina, Aurora Torrente

    Published 2013-01-01
    “…The method has been applied to 2D slices created from a database of 3D real MRI phantom images to effectively detect lesions larger than 2.5 × 10−2 m diameter.…”
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  16. 176

    Circle Plus Partial Helical Scan Scheme for a Flat Panel Detector-Based Cone Beam Breast X-Ray CT by Dong Yang, Ruola Ning, Weixing Cai

    Published 2009-01-01
    “…Computer simulations using a numerical breast phantom demonstrated the practical feasibility of this new scheme and correction to those artifacts to a certain degree.…”
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  17. 177

    Tissue Anisotropy Modeling Using Soft Composite Materials by Arnab Chanda, Christian Callaway

    Published 2018-01-01
    “…This work lays the foundation for the experimental modelling of tissue anisotropy, which combined with microscopic studies on tissues can lead to refinements in the simulation of localized fiber distribution and orientations, and enable the development of biofidelic anisotropic tissue phantom materials for various tissue engineering and testing applications.…”
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  18. 178

    Beating 1 Sievert: Optimal Radiation Shielding of Astronauts on a Mission to Mars by M. I. Dobynde, Y. Y. Shprits, A. Y. Drozdov, J. Hoffman, Ju Li

    Published 2021-09-01
    “…In this study, we combine models of the particle environment arising due to SEP and GCR with Monte Carlo simulations of radiation propagation inside a spacecraft and phantom. We include 28 fully ionized GCR elements from hydrogen to nickel and consider protons and nine ion species to model the SEP irradiation. …”
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  19. 179

    Development of Automatic 3D Blood Vessel Search and Automatic Blood Sampling System by Using Hybrid Stereo-Autofocus Method by Eiji Nakamachi, Yusuke Morita, Yoshifumi Mizuno

    Published 2012-01-01
    “…We evaluated the accuracy of our 3D BVS system using a phantom of human skin, blood vessels, and blood. Additionally, we established an automatic blood sampling system for SMBG and assessed its performance in relation to punctures, blood suction, transport, and discharge on an enzyme sensor. …”
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  20. 180

    Monte Carlo Simulation of the Gamma-Ray Transmissions for the newly Designed Shielding Blocks used in Radiotherapy by Nuray Yavuzkanat, Hazal Burcu Saraç Kürem

    Published 2020-12-01
    “…Experimental measurements were carried out with Alcyon II model Co-60 teletherapy machine for various field sizes by using Farmer type 0,6 cc ion chamber, PTW Unidos Dosimeter and solid phantom in Dr. Abdurrahman Yurtaslan Ankara Oncology Training and Research Hospital in 2010. …”
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