A comparison of four algorithms for metal artifact reduction in CT imaging. Proc. SPIE 7961, 79612Y (2011). Abelson J, Murphy J, Wiegner E et al. Evaluation of a metal artifact reduction technique in tonsillar cancer delineation. Pract. Radiat. Oncol. 2(1), 27–34 (2012). Hong R, ...
This paper aims to present experimental data illustrating count-rate dependencies and to propose practical routines to mitigate errors in the 131I calibration procedure without needing advanced analysis tools. Results The sensitivities of two General Electric (GE) Discovery 670 Pro systems were assessed ...
As a result, this study still underestimated the uncertainties for absorbed dose estimates. However, as this underestimation is not linked to system parameters, the current comparison of a 3D CZT SPECT system with a conventional SPECT system in terms of dose uncertainties remains valid....
The energy giant on Friday revealed it would now only ring those households that "have a relationship" with the business, or ones that have agreed to a call, such as by ticking a box on an internet comparison site. 匿名用户 创建日期: 2020/11/17 8:39 SwdAoRWxpnL On another call...
effectiveness is highlighted by its linear calibration curve, low detection limit of 0.65 nM, and limit of quantification of 1.92 nM. Research on selectivity and repeatability using actual blood samples has shown a recovery rate of more than 96%. In conclusion, the effective immobilization and ...
BMD in the lumbar spine was measured by dual-energy X-ray absorptiometry (Prodigy Advance; General Electric Company, USA). The mean T-scores of the L1-L4 vertebral bodies (excluding the fractured vertebral bodies) were calculated and used for all subsequent analyses. Surgical variables include ...
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Infinite, 3 Range Hydrostatic (Servo control valve with Electric sol.) Width 74.2in Turning Radius 9'9" Wheelbase 6'3" Engine Performance Capacities Hydraulic System Drive System Dimension Loader Attachment CT5550 Features & Benefits Performance ...
Another problem of photon-counting detectors is count-rate drift at higher x-ray flux rates. Non-homogeneously distributed crystal defects in the sensor material cause trapping of electrons and holes – the resulting space charges modify the electric field distribution differently in the individual det...
Light-GBM: The number of trees is 500, the maximum depth is 6, the model learning rate is 0.01, the bagging fraction is 0.5, the feature fraction is 0.9, and the boosting method is GBDT. Fig. 6 The residual block structure of the CTCN++-LightGBM (a) and the CTCN+++-LightGBM (b...