X-ray imaging results
Gold nanoparticles as multimodality imaging agents for brain gliomas
... organ imaging plus nanoscale 3‑dimensional (3D) X‑ray ...microscopy. Results: The use of gold nanoparticles (AuNPs) as contrast agents paved the way to a detailed high‑resolution three ...
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Monte Carlo modeling of direct x-ray imaging systems
... multistage imaging systems. Their results are particulary useful for imaging systems which can be broken into any number of amplifying and scatter- ing stages arranged in series and describe how NPS ...
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System Characterizations and Optimized Reconstruction Methods for Novel X-ray Imaging
... reconstruction results by use of the proposed TBCT-FDK ...the results, “one weight” methods performs best in terms of the reconstructed CT value accuracy, because it only employs the most reliable ...
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On the investigation of a novel x-ray imaging techniques in radiation oncology
... of imaging dose whereas the conventional method is a flat rate of 1320, representing roughly a 40% sav- ing in imaging dose for the same MAPD ...but results in images of similar quality to RT 4D CBCT ...
156
X-ray radiation and the risk of multiple sclerosis: Do the site and dose of exposure matter?
... skull X-ray and brain CT scanning were also found to be significantly more common in patients with ...prevalent imaging assessment among this ...our results showed that cumulative dosage of ...
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System parameters and performance specifications for the application of Diffraction Enhanced Imaging and Multiple Image Radiography to breast imaging
... dissenters, that mammographic screening significantly and substantially reduced mortality from breast cancer" (Tabar et al. 2003). Large-scale screening trials have been used to determine the effectiveness of ...
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X ray digital linear tomosynthesis imaging
... the X-ray source projec- tion geometry prior to ...tomosynthesis imaging is to determine the number of views that can be acquired given imaging con- straints ...by results presented ...
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Magnetic resonance imaging, X ray and dual X ray absorptiometry techniques for assessment and monitoring of knee osteoarthritis
... Proteinases play an important role in the pathogenesis of joint destruc- tion, and matrix metalloproteinases (MMP) are believed to play a crucial role as they have the ability to degrade various compounds of the extra- ...
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Imaging features in post-mortem x-ray dark-field chest radiographs and correlation with conventional x-ray and CT
... 14], x-ray dark-field imaging allowed visualisation of early fibrotic changes in the lungs with dark-field images showing circum- scribed areas of markedly reduced dark-field signal in lung ...
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Examination of historical paintings by state-of-the-art hyperspectral imaging methods: from scanning infra-red spectroscopy to computed X-ray laminography
... (1.3-25.0 μm) range, incorporating a globar IR-source and a deuterated triglycine sulphate (DTGS) detector that can be fitted with a reflection mode accessory. The curved mirrors in the latter produce a roughly circular ...
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Advanced Nanoscale Characterization of Cement Based Materials Using X-Ray Synchrotron Radiation: A Review
... resolution X-ray transmission imaging combined with a rotational axis allows for rendering of samples in three dimensions revealing volumetric ...transmission X-ray microscope combines ...
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Inclusion of coherence in Monte Carlo models for simulation of x-ray phase contrast imaging
... a ray tracing approach in a Monte Carlo code ...of ray-tracing and wave optics with the reconstruction of the phase from the path length [13] has also been proposed to reproduce XPCI ...on ray ...
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Multiscale imaging of plants: current approaches and challenges
... The results shown in Figure 4 demonstrate for both the forestry scene and for the single plant, and with both imaging modalities, scale-invariant power-law sig- natures over a significant range of scales, ...
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Energy-resolved X-ray detectors: the future of diagnostic imaging
... of X-ray detectors, which could play a role in medical imaging in the near future, with special attention to the new generation of complementary metal-oxide semiconductor (C-MOS) imagers, working in ...
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Challenges associated with x ray imaging of stretcher bound patients
... When the IR is placed in the stretcher IR holder, whether it is in the tray or on the platform, this will increase the OID (Figure 6). OID magnitude will depend on stretcher design and mattress thickness. Some ...
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An investigation of the imaging performance of new digital x-ray detectors
... A review of the medical imaging literature reveals that different definitions of signal- to-noise ratio (SNR) are used. If a simple detection task is assumed, for example if an observer is required to say whether ...
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Ludwig, Wolfgang (2001): Development and Applications of Synchrotron Radiation Microtomography. Dissertation, LMU München: Fakultät für Physik
... The technique is based on a monochromatic high energy X-ray beam (50 - 80 keV) and a 2-dimensional detector. The principle is sketched in Fig. 4.14. The incoming beam is focused by a bent Laue monochromator ...
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Global Localization and Orientation of the Cervical Spine in X-ray Imaging
... scanned X-ray images, where the images are collected from healthy patients for the purpose of developing automatic algorithms thus contains less variation, in- juries and exposure ...represents ...
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The role of cardiac CT angiography in the pre- and postoperative evaluation of tetralogy of Fallot
... 1. Imaging occurs during a user-selected brief period of the R-R interval, that is radiation exposure only during specifically determined periods of ...the imaging is forward looking (prospective) and based ...
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Characteristics of the CsI:Tl Scintillator Crystal for X Ray Imaging Applications
... In order to determine the ideal thickness of the slices of the scintillator crystal CsI:Tl, Monte Carlo method was used. The absorption of the X-ray energies in the scintillator was estimated by the Monte ...
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